Reword comment to avoid ci-custom scanf lint false positive

The regex matches `scanf (` in comments too since `\s*\(` matches the
space before the parenthesized size note.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.clang-tidy.hash

@@ -1 +1 @@
-74867fc82764102ce1275ea2bc43e3aeee7619679537c6db61114a33342bb4c7
+ce05c28e9dc0b12c4f6e7454986ffea5123ac974a949da841be698c535f2083e

.github/workflows/ci.yml

@@ -115,6 +115,7 @@ jobs:
         python-version:
           - "3.11"
           - "3.13"
+          - "3.14"
         os:
           - ubuntu-latest
           - macOS-latest

CODEOWNERS

@@ -429,7 +429,6 @@ esphome/components/sen21231/* @shreyaskarnik
 esphome/components/sen5x/* @martgras
 esphome/components/sensirion_common/* @martgras
 esphome/components/sensor/* @esphome/core
-esphome/components/serial_proxy/* @kbx81
 esphome/components/sfa30/* @ghsensdev
 esphome/components/sgp40/* @SenexCrenshaw
 esphome/components/sgp4x/* @martgras @SenexCrenshaw

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2026.2.0-dev
+PROJECT_NUMBER         = 2026.3.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

esphome/components/api/api.proto

@@ -69,12 +69,6 @@ service APIConnection {
   rpc zwave_proxy_request(ZWaveProxyRequest) returns (void) {}
 
   rpc infrared_rf_transmit_raw_timings(InfraredRFTransmitRawTimingsRequest) returns (void) {}
-
-  rpc serial_proxy_configure(SerialProxyConfigureRequest) returns (void) {}
-  rpc serial_proxy_write(SerialProxyWriteRequest) returns (void) {}
-  rpc serial_proxy_set_modem_pins(SerialProxySetModemPinsRequest) returns (void) {}
-  rpc serial_proxy_get_modem_pins(SerialProxyGetModemPinsRequest) returns (void) {}
-  rpc serial_proxy_flush(SerialProxyFlushRequest) returns (void) {}
 }
 
 
@@ -266,9 +260,6 @@ message DeviceInfoResponse {
   // Indicates if Z-Wave proxy support is available and features supported
   uint32 zwave_proxy_feature_flags = 23 [(field_ifdef) = "USE_ZWAVE_PROXY"];
   uint32 zwave_home_id = 24 [(field_ifdef) = "USE_ZWAVE_PROXY"];
-
-  // Number of serial proxy instances available on the device
-  uint32 serial_proxy_count = 25 [(field_ifdef) = "USE_SERIAL_PROXY"];
 }
 
 message ListEntitiesRequest {
@@ -2497,87 +2488,3 @@ message InfraredRFReceiveEvent {
   fixed32 key = 2;                                    // Key identifying the receiver instance
   repeated sint32 timings = 3 [packed = true, (container_pointer_no_template) = "std::vector<int32_t>"];  // Raw timings in microseconds (zigzag-encoded): alternating mark/space periods
 }
-
-// ==================== SERIAL PROXY ====================
-
-enum SerialProxyParity {
-  SERIAL_PROXY_PARITY_NONE = 0;
-  SERIAL_PROXY_PARITY_EVEN = 1;
-  SERIAL_PROXY_PARITY_ODD = 2;
-}
-
-// Configure UART parameters for a serial proxy instance
-message SerialProxyConfigureRequest {
-  option (id) = 138;
-  option (source) = SOURCE_CLIENT;
-  option (ifdef) = "USE_SERIAL_PROXY";
-
-  uint32 instance = 1;          // Instance index (0-based)
-  uint32 baudrate = 2;          // Baud rate in bits per second
-  bool flow_control = 3;        // Enable hardware flow control
-  SerialProxyParity parity = 4; // Parity setting
-  uint32 stop_bits = 5;         // Number of stop bits (1 or 2)
-  uint32 data_size = 6;         // Number of data bits (5-8)
-}
-
-// Data received from a serial device, forwarded to clients
-message SerialProxyDataReceived {
-  option (id) = 139;
-  option (source) = SOURCE_SERVER;
-  option (ifdef) = "USE_SERIAL_PROXY";
-  option (no_delay) = true;
-
-  uint32 instance = 1;          // Instance index (0-based)
-  bytes data = 2;               // Raw data received from the serial device
-}
-
-// Write data to a serial device
-message SerialProxyWriteRequest {
-  option (id) = 140;
-  option (source) = SOURCE_CLIENT;
-  option (ifdef) = "USE_SERIAL_PROXY";
-  option (no_delay) = true;
-
-  uint32 instance = 1;          // Instance index (0-based)
-  bytes data = 2;               // Raw data to write to the serial device
-}
-
-// Set modem control pin states (RTS and DTR)
-message SerialProxySetModemPinsRequest {
-  option (id) = 141;
-  option (source) = SOURCE_CLIENT;
-  option (ifdef) = "USE_SERIAL_PROXY";
-
-  uint32 instance = 1;          // Instance index (0-based)
-  bool rts = 2;                 // Desired RTS pin state
-  bool dtr = 3;                 // Desired DTR pin state
-}
-
-// Request current modem control pin states
-message SerialProxyGetModemPinsRequest {
-  option (id) = 142;
-  option (source) = SOURCE_CLIENT;
-  option (ifdef) = "USE_SERIAL_PROXY";
-
-  uint32 instance = 1;          // Instance index (0-based)
-}
-
-// Response with current modem control pin states
-message SerialProxyGetModemPinsResponse {
-  option (id) = 143;
-  option (source) = SOURCE_SERVER;
-  option (ifdef) = "USE_SERIAL_PROXY";
-
-  uint32 instance = 1;          // Instance index (0-based)
-  bool rts = 2;                 // Current RTS pin state
-  bool dtr = 3;                 // Current DTR pin state
-}
-
-// Flush the serial port (block until all TX data is sent)
-message SerialProxyFlushRequest {
-  option (id) = 144;
-  option (source) = SOURCE_CLIENT;
-  option (ifdef) = "USE_SERIAL_PROXY";
-
-  uint32 instance = 1;          // Instance index (0-based)
-}

esphome/components/api/api_connection.cpp

@@ -1413,66 +1413,6 @@ void APIConnection::send_infrared_rf_receive_event(const InfraredRFReceiveEvent
 }
 #endif
 
-#ifdef USE_SERIAL_PROXY
-void APIConnection::on_serial_proxy_configure_request(const SerialProxyConfigureRequest &msg) {
-  auto &proxies = App.get_serial_proxies();
-  if (msg.instance >= proxies.size()) {
-    ESP_LOGW(TAG, "Serial proxy instance %u out of range (max %u)", msg.instance,
-             static_cast<uint32_t>(proxies.size()));
-    return;
-  }
-  proxies[msg.instance]->configure(msg.baudrate, msg.flow_control, static_cast<uint8_t>(msg.parity), msg.stop_bits,
-                                   msg.data_size);
-}
-
-void APIConnection::on_serial_proxy_write_request(const SerialProxyWriteRequest &msg) {
-  auto &proxies = App.get_serial_proxies();
-  if (msg.instance >= proxies.size()) {
-    ESP_LOGW(TAG, "Serial proxy instance %u out of range", msg.instance);
-    return;
-  }
-  proxies[msg.instance]->write(msg.data, msg.data_len);
-}
-
-void APIConnection::on_serial_proxy_set_modem_pins_request(const SerialProxySetModemPinsRequest &msg) {
-  auto &proxies = App.get_serial_proxies();
-  if (msg.instance >= proxies.size()) {
-    ESP_LOGW(TAG, "Serial proxy instance %u out of range", msg.instance);
-    return;
-  }
-  proxies[msg.instance]->set_modem_pins(msg.rts, msg.dtr);
-}
-
-void APIConnection::on_serial_proxy_get_modem_pins_request(const SerialProxyGetModemPinsRequest &msg) {
-  auto &proxies = App.get_serial_proxies();
-  if (msg.instance >= proxies.size()) {
-    ESP_LOGW(TAG, "Serial proxy instance %u out of range", msg.instance);
-    return;
-  }
-  bool rts, dtr;
-  proxies[msg.instance]->get_modem_pins(rts, dtr);
-
-  SerialProxyGetModemPinsResponse resp{};
-  resp.instance = msg.instance;
-  resp.rts = rts;
-  resp.dtr = dtr;
-  this->send_message(resp, SerialProxyGetModemPinsResponse::MESSAGE_TYPE);
-}
-
-void APIConnection::on_serial_proxy_flush_request(const SerialProxyFlushRequest &msg) {
-  auto &proxies = App.get_serial_proxies();
-  if (msg.instance >= proxies.size()) {
-    ESP_LOGW(TAG, "Serial proxy instance %u out of range", msg.instance);
-    return;
-  }
-  proxies[msg.instance]->flush_port();
-}
-
-void APIConnection::send_serial_proxy_data(const SerialProxyDataReceived &msg) {
-  this->send_message(msg, SerialProxyDataReceived::MESSAGE_TYPE);
-}
-#endif
-
 #ifdef USE_INFRARED
 uint16_t APIConnection::try_send_infrared_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size) {
   auto *infrared = static_cast<infrared::Infrared *>(entity);
@@ -1687,9 +1627,6 @@ bool APIConnection::send_device_info_response_() {
   resp.zwave_proxy_feature_flags = zwave_proxy::global_zwave_proxy->get_feature_flags();
   resp.zwave_home_id = zwave_proxy::global_zwave_proxy->get_home_id();
 #endif
-#ifdef USE_SERIAL_PROXY
-  resp.serial_proxy_count = App.get_serial_proxies().size();
-#endif
 #ifdef USE_API_NOISE
   resp.api_encryption_supported = true;
 #endif

esphome/components/api/api_connection.h

@@ -182,15 +182,6 @@ class APIConnection final : public APIServerConnectionBase {
   void send_infrared_rf_receive_event(const InfraredRFReceiveEvent &msg);
 #endif
 
-#ifdef USE_SERIAL_PROXY
-  void on_serial_proxy_configure_request(const SerialProxyConfigureRequest &msg) override;
-  void on_serial_proxy_write_request(const SerialProxyWriteRequest &msg) override;
-  void on_serial_proxy_set_modem_pins_request(const SerialProxySetModemPinsRequest &msg) override;
-  void on_serial_proxy_get_modem_pins_request(const SerialProxyGetModemPinsRequest &msg) override;
-  void on_serial_proxy_flush_request(const SerialProxyFlushRequest &msg) override;
-  void send_serial_proxy_data(const SerialProxyDataReceived &msg);
-#endif
-
 #ifdef USE_EVENT
   void send_event(event::Event *event);
 #endif

esphome/components/api/api_pb2.cpp

@@ -119,9 +119,6 @@ void DeviceInfoResponse::encode(ProtoWriteBuffer buffer) const {
 #ifdef USE_ZWAVE_PROXY
   buffer.encode_uint32(24, this->zwave_home_id);
 #endif
-#ifdef USE_SERIAL_PROXY
-  buffer.encode_uint32(25, this->serial_proxy_count);
-#endif
 }
 void DeviceInfoResponse::calculate_size(ProtoSize &size) const {
   size.add_length(1, this->name.size());
@@ -177,9 +174,6 @@ void DeviceInfoResponse::calculate_size(ProtoSize &size) const {
 #ifdef USE_ZWAVE_PROXY
   size.add_uint32(2, this->zwave_home_id);
 #endif
-#ifdef USE_SERIAL_PROXY
-  size.add_uint32(2, this->serial_proxy_count);
-#endif
 }
 #ifdef USE_BINARY_SENSOR
 void ListEntitiesBinarySensorResponse::encode(ProtoWriteBuffer buffer) const {
@@ -3446,108 +3440,5 @@ void InfraredRFReceiveEvent::calculate_size(ProtoSize &size) const {
   }
 }
 #endif
-#ifdef USE_SERIAL_PROXY
-bool SerialProxyConfigureRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
-  switch (field_id) {
-    case 1:
-      this->instance = value.as_uint32();
-      break;
-    case 2:
-      this->baudrate = value.as_uint32();
-      break;
-    case 3:
-      this->flow_control = value.as_bool();
-      break;
-    case 4:
-      this->parity = static_cast<enums::SerialProxyParity>(value.as_uint32());
-      break;
-    case 5:
-      this->stop_bits = value.as_uint32();
-      break;
-    case 6:
-      this->data_size = value.as_uint32();
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-void SerialProxyDataReceived::encode(ProtoWriteBuffer buffer) const {
-  buffer.encode_uint32(1, this->instance);
-  buffer.encode_bytes(2, this->data_ptr_, this->data_len_);
-}
-void SerialProxyDataReceived::calculate_size(ProtoSize &size) const {
-  size.add_uint32(1, this->instance);
-  size.add_length(1, this->data_len_);
-}
-bool SerialProxyWriteRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
-  switch (field_id) {
-    case 1:
-      this->instance = value.as_uint32();
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-bool SerialProxyWriteRequest::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
-  switch (field_id) {
-    case 2: {
-      this->data = value.data();
-      this->data_len = value.size();
-      break;
-    }
-    default:
-      return false;
-  }
-  return true;
-}
-bool SerialProxySetModemPinsRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
-  switch (field_id) {
-    case 1:
-      this->instance = value.as_uint32();
-      break;
-    case 2:
-      this->rts = value.as_bool();
-      break;
-    case 3:
-      this->dtr = value.as_bool();
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-bool SerialProxyGetModemPinsRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
-  switch (field_id) {
-    case 1:
-      this->instance = value.as_uint32();
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-void SerialProxyGetModemPinsResponse::encode(ProtoWriteBuffer buffer) const {
-  buffer.encode_uint32(1, this->instance);
-  buffer.encode_bool(2, this->rts);
-  buffer.encode_bool(3, this->dtr);
-}
-void SerialProxyGetModemPinsResponse::calculate_size(ProtoSize &size) const {
-  size.add_uint32(1, this->instance);
-  size.add_bool(1, this->rts);
-  size.add_bool(1, this->dtr);
-}
-bool SerialProxyFlushRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
-  switch (field_id) {
-    case 1:
-      this->instance = value.as_uint32();
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-#endif
 
 }  // namespace esphome::api

esphome/components/api/api_pb2.h

@@ -311,13 +311,6 @@ enum ZWaveProxyRequestType : uint32_t {
   ZWAVE_PROXY_REQUEST_TYPE_HOME_ID_CHANGE = 2,
 };
 #endif
-#ifdef USE_SERIAL_PROXY
-enum SerialProxyParity : uint32_t {
-  SERIAL_PROXY_PARITY_NONE = 0,
-  SERIAL_PROXY_PARITY_EVEN = 1,
-  SERIAL_PROXY_PARITY_ODD = 2,
-};
-#endif
 
 }  // namespace enums
 
@@ -481,7 +474,7 @@ class DeviceInfo final : public ProtoMessage {
 class DeviceInfoResponse final : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 10;
-  static constexpr uint16_t ESTIMATED_SIZE = 260;
+  static constexpr uint8_t ESTIMATED_SIZE = 255;
 #ifdef HAS_PROTO_MESSAGE_DUMP
   const char *message_name() const override { return "device_info_response"; }
 #endif
@@ -533,9 +526,6 @@ class DeviceInfoResponse final : public ProtoMessage {
 #endif
 #ifdef USE_ZWAVE_PROXY
   uint32_t zwave_home_id{0};
-#endif
-#ifdef USE_SERIAL_PROXY
-  uint32_t serial_proxy_count{0};
 #endif
   void encode(ProtoWriteBuffer buffer) const override;
   void calculate_size(ProtoSize &size) const override;
@@ -3035,132 +3025,5 @@ class InfraredRFReceiveEvent final : public ProtoMessage {
  protected:
 };
 #endif
-#ifdef USE_SERIAL_PROXY
-class SerialProxyConfigureRequest final : public ProtoDecodableMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 138;
-  static constexpr uint8_t ESTIMATED_SIZE = 20;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_configure_request"; }
-#endif
-  uint32_t instance{0};
-  uint32_t baudrate{0};
-  bool flow_control{false};
-  enums::SerialProxyParity parity{};
-  uint32_t stop_bits{0};
-  uint32_t data_size{0};
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
-};
-class SerialProxyDataReceived final : public ProtoMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 139;
-  static constexpr uint8_t ESTIMATED_SIZE = 23;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_data_received"; }
-#endif
-  uint32_t instance{0};
-  const uint8_t *data_ptr_{nullptr};
-  size_t data_len_{0};
-  void set_data(const uint8_t *data, size_t len) {
-    this->data_ptr_ = data;
-    this->data_len_ = len;
-  }
-  void encode(ProtoWriteBuffer buffer) const override;
-  void calculate_size(ProtoSize &size) const override;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-};
-class SerialProxyWriteRequest final : public ProtoDecodableMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 140;
-  static constexpr uint8_t ESTIMATED_SIZE = 23;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_write_request"; }
-#endif
-  uint32_t instance{0};
-  const uint8_t *data{nullptr};
-  uint16_t data_len{0};
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-  bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
-  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
-};
-class SerialProxySetModemPinsRequest final : public ProtoDecodableMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 141;
-  static constexpr uint8_t ESTIMATED_SIZE = 8;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_set_modem_pins_request"; }
-#endif
-  uint32_t instance{0};
-  bool rts{false};
-  bool dtr{false};
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
-};
-class SerialProxyGetModemPinsRequest final : public ProtoDecodableMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 142;
-  static constexpr uint8_t ESTIMATED_SIZE = 4;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_get_modem_pins_request"; }
-#endif
-  uint32_t instance{0};
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
-};
-class SerialProxyGetModemPinsResponse final : public ProtoMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 143;
-  static constexpr uint8_t ESTIMATED_SIZE = 8;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_get_modem_pins_response"; }
-#endif
-  uint32_t instance{0};
-  bool rts{false};
-  bool dtr{false};
-  void encode(ProtoWriteBuffer buffer) const override;
-  void calculate_size(ProtoSize &size) const override;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-};
-class SerialProxyFlushRequest final : public ProtoDecodableMessage {
- public:
-  static constexpr uint8_t MESSAGE_TYPE = 144;
-  static constexpr uint8_t ESTIMATED_SIZE = 4;
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *message_name() const override { return "serial_proxy_flush_request"; }
-#endif
-  uint32_t instance{0};
-#ifdef HAS_PROTO_MESSAGE_DUMP
-  const char *dump_to(DumpBuffer &out) const override;
-#endif
-
- protected:
-  bool decode_varint(uint32_t field_id, ProtoVarInt value) override;
-};
-#endif
 
 }  // namespace esphome::api

esphome/components/api/api_pb2_dump.cpp

@@ -736,20 +736,6 @@ template<> const char *proto_enum_to_string<enums::ZWaveProxyRequestType>(enums:
   }
 }
 #endif
-#ifdef USE_SERIAL_PROXY
-template<> const char *proto_enum_to_string<enums::SerialProxyParity>(enums::SerialProxyParity value) {
-  switch (value) {
-    case enums::SERIAL_PROXY_PARITY_NONE:
-      return "SERIAL_PROXY_PARITY_NONE";
-    case enums::SERIAL_PROXY_PARITY_EVEN:
-      return "SERIAL_PROXY_PARITY_EVEN";
-    case enums::SERIAL_PROXY_PARITY_ODD:
-      return "SERIAL_PROXY_PARITY_ODD";
-    default:
-      return "UNKNOWN";
-  }
-}
-#endif
 
 const char *HelloRequest::dump_to(DumpBuffer &out) const {
   MessageDumpHelper helper(out, "HelloRequest");
@@ -859,9 +845,6 @@ const char *DeviceInfoResponse::dump_to(DumpBuffer &out) const {
 #endif
 #ifdef USE_ZWAVE_PROXY
   dump_field(out, "zwave_home_id", this->zwave_home_id);
-#endif
-#ifdef USE_SERIAL_PROXY
-  dump_field(out, "serial_proxy_count", this->serial_proxy_count);
 #endif
   return out.c_str();
 }
@@ -2486,54 +2469,6 @@ const char *InfraredRFReceiveEvent::dump_to(DumpBuffer &out) const {
   return out.c_str();
 }
 #endif
-#ifdef USE_SERIAL_PROXY
-const char *SerialProxyConfigureRequest::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxyConfigureRequest");
-  dump_field(out, "instance", this->instance);
-  dump_field(out, "baudrate", this->baudrate);
-  dump_field(out, "flow_control", this->flow_control);
-  dump_field(out, "parity", static_cast<enums::SerialProxyParity>(this->parity));
-  dump_field(out, "stop_bits", this->stop_bits);
-  dump_field(out, "data_size", this->data_size);
-  return out.c_str();
-}
-const char *SerialProxyDataReceived::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxyDataReceived");
-  dump_field(out, "instance", this->instance);
-  dump_bytes_field(out, "data", this->data_ptr_, this->data_len_);
-  return out.c_str();
-}
-const char *SerialProxyWriteRequest::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxyWriteRequest");
-  dump_field(out, "instance", this->instance);
-  dump_bytes_field(out, "data", this->data, this->data_len);
-  return out.c_str();
-}
-const char *SerialProxySetModemPinsRequest::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxySetModemPinsRequest");
-  dump_field(out, "instance", this->instance);
-  dump_field(out, "rts", this->rts);
-  dump_field(out, "dtr", this->dtr);
-  return out.c_str();
-}
-const char *SerialProxyGetModemPinsRequest::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxyGetModemPinsRequest");
-  dump_field(out, "instance", this->instance);
-  return out.c_str();
-}
-const char *SerialProxyGetModemPinsResponse::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxyGetModemPinsResponse");
-  dump_field(out, "instance", this->instance);
-  dump_field(out, "rts", this->rts);
-  dump_field(out, "dtr", this->dtr);
-  return out.c_str();
-}
-const char *SerialProxyFlushRequest::dump_to(DumpBuffer &out) const {
-  MessageDumpHelper helper(out, "SerialProxyFlushRequest");
-  dump_field(out, "instance", this->instance);
-  return out.c_str();
-}
-#endif
 
 }  // namespace esphome::api
 

esphome/components/api/api_pb2_service.cpp

@@ -634,61 +634,6 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       this->on_infrared_rf_transmit_raw_timings_request(msg);
       break;
     }
-#endif
-#ifdef USE_SERIAL_PROXY
-    case SerialProxyConfigureRequest::MESSAGE_TYPE: {
-      SerialProxyConfigureRequest msg;
-      msg.decode(msg_data, msg_size);
-#ifdef HAS_PROTO_MESSAGE_DUMP
-      this->log_receive_message_(LOG_STR("on_serial_proxy_configure_request"), msg);
-#endif
-      this->on_serial_proxy_configure_request(msg);
-      break;
-    }
-#endif
-#ifdef USE_SERIAL_PROXY
-    case SerialProxyWriteRequest::MESSAGE_TYPE: {
-      SerialProxyWriteRequest msg;
-      msg.decode(msg_data, msg_size);
-#ifdef HAS_PROTO_MESSAGE_DUMP
-      this->log_receive_message_(LOG_STR("on_serial_proxy_write_request"), msg);
-#endif
-      this->on_serial_proxy_write_request(msg);
-      break;
-    }
-#endif
-#ifdef USE_SERIAL_PROXY
-    case SerialProxySetModemPinsRequest::MESSAGE_TYPE: {
-      SerialProxySetModemPinsRequest msg;
-      msg.decode(msg_data, msg_size);
-#ifdef HAS_PROTO_MESSAGE_DUMP
-      this->log_receive_message_(LOG_STR("on_serial_proxy_set_modem_pins_request"), msg);
-#endif
-      this->on_serial_proxy_set_modem_pins_request(msg);
-      break;
-    }
-#endif
-#ifdef USE_SERIAL_PROXY
-    case SerialProxyGetModemPinsRequest::MESSAGE_TYPE: {
-      SerialProxyGetModemPinsRequest msg;
-      msg.decode(msg_data, msg_size);
-#ifdef HAS_PROTO_MESSAGE_DUMP
-      this->log_receive_message_(LOG_STR("on_serial_proxy_get_modem_pins_request"), msg);
-#endif
-      this->on_serial_proxy_get_modem_pins_request(msg);
-      break;
-    }
-#endif
-#ifdef USE_SERIAL_PROXY
-    case SerialProxyFlushRequest::MESSAGE_TYPE: {
-      SerialProxyFlushRequest msg;
-      msg.decode(msg_data, msg_size);
-#ifdef HAS_PROTO_MESSAGE_DUMP
-      this->log_receive_message_(LOG_STR("on_serial_proxy_flush_request"), msg);
-#endif
-      this->on_serial_proxy_flush_request(msg);
-      break;
-    }
 #endif
     default:
       break;

esphome/components/api/api_pb2_service.h

@@ -224,23 +224,6 @@ class APIServerConnectionBase : public ProtoService {
   virtual void on_infrared_rf_transmit_raw_timings_request(const InfraredRFTransmitRawTimingsRequest &value){};
 #endif
 
-#ifdef USE_SERIAL_PROXY
-  virtual void on_serial_proxy_configure_request(const SerialProxyConfigureRequest &value){};
-#endif
-
-#ifdef USE_SERIAL_PROXY
-  virtual void on_serial_proxy_write_request(const SerialProxyWriteRequest &value){};
-#endif
-#ifdef USE_SERIAL_PROXY
-  virtual void on_serial_proxy_set_modem_pins_request(const SerialProxySetModemPinsRequest &value){};
-#endif
-#ifdef USE_SERIAL_PROXY
-  virtual void on_serial_proxy_get_modem_pins_request(const SerialProxyGetModemPinsRequest &value){};
-#endif
-
-#ifdef USE_SERIAL_PROXY
-  virtual void on_serial_proxy_flush_request(const SerialProxyFlushRequest &value){};
-#endif
  protected:
   void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
 };

esphome/components/api/api_server.cpp

@@ -370,17 +370,6 @@ void APIServer::send_infrared_rf_receive_event([[maybe_unused]] uint32_t device_
 }
 #endif
 
-#ifdef USE_SERIAL_PROXY
-void APIServer::send_serial_proxy_data(uint32_t instance, const uint8_t *data, size_t len) {
-  SerialProxyDataReceived msg{};
-  msg.instance = instance;
-  msg.set_data(data, len);
-
-  for (auto &c : this->clients_)
-    c->send_serial_proxy_data(msg);
-}
-#endif
-
 #ifdef USE_ALARM_CONTROL_PANEL
 API_DISPATCH_UPDATE(alarm_control_panel::AlarmControlPanel, alarm_control_panel)
 #endif

esphome/components/api/api_server.h

@@ -189,10 +189,6 @@ class APIServer : public Component,
   void send_infrared_rf_receive_event(uint32_t device_id, uint32_t key, const std::vector<int32_t> *timings);
 #endif
 
-#ifdef USE_SERIAL_PROXY
-  void send_serial_proxy_data(uint32_t instance, const uint8_t *data, size_t len);
-#endif
-
   bool is_connected(bool state_subscription_only = false) const;
 
 #ifdef USE_API_HOMEASSISTANT_STATES

esphome/components/esp32/__init__.py

@@ -645,11 +645,12 @@ def _is_framework_url(source: str) -> bool:
 # The default/recommended arduino framework version
 #  - https://github.com/espressif/arduino-esp32/releases
 ARDUINO_FRAMEWORK_VERSION_LOOKUP = {
-    "recommended": cv.Version(3, 3, 6),
-    "latest": cv.Version(3, 3, 6),
-    "dev": cv.Version(3, 3, 6),
+    "recommended": cv.Version(3, 3, 7),
+    "latest": cv.Version(3, 3, 7),
+    "dev": cv.Version(3, 3, 7),
 }
 ARDUINO_PLATFORM_VERSION_LOOKUP = {
+    cv.Version(3, 3, 7): cv.Version(55, 3, 37),
     cv.Version(3, 3, 6): cv.Version(55, 3, 36),
     cv.Version(3, 3, 5): cv.Version(55, 3, 35),
     cv.Version(3, 3, 4): cv.Version(55, 3, 31, "2"),
@@ -668,6 +669,7 @@ ARDUINO_PLATFORM_VERSION_LOOKUP = {
 # These versions correspond to pioarduino/esp-idf releases
 # See: https://github.com/pioarduino/esp-idf/releases
 ARDUINO_IDF_VERSION_LOOKUP = {
+    cv.Version(3, 3, 7): cv.Version(5, 5, 2),
     cv.Version(3, 3, 6): cv.Version(5, 5, 2),
     cv.Version(3, 3, 5): cv.Version(5, 5, 2),
     cv.Version(3, 3, 4): cv.Version(5, 5, 1),
@@ -691,7 +693,7 @@ ESP_IDF_FRAMEWORK_VERSION_LOOKUP = {
     "dev": cv.Version(5, 5, 2),
 }
 ESP_IDF_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(5, 5, 2): cv.Version(55, 3, 36),
+    cv.Version(5, 5, 2): cv.Version(55, 3, 37),
     cv.Version(5, 5, 1): cv.Version(55, 3, 31, "2"),
     cv.Version(5, 5, 0): cv.Version(55, 3, 31, "2"),
     cv.Version(5, 4, 3): cv.Version(55, 3, 32),
@@ -708,8 +710,8 @@ ESP_IDF_PLATFORM_VERSION_LOOKUP = {
 # The platform-espressif32 version
 #  - https://github.com/pioarduino/platform-espressif32/releases
 PLATFORM_VERSION_LOOKUP = {
-    "recommended": cv.Version(55, 3, 36),
-    "latest": cv.Version(55, 3, 36),
+    "recommended": cv.Version(55, 3, 37),
+    "latest": cv.Version(55, 3, 37),
     "dev": "https://github.com/pioarduino/platform-espressif32.git#develop",
 }
 

esphome/components/esp32/boards.py

@@ -1686,6 +1686,10 @@ BOARDS = {
         "name": "Espressif ESP32-C6-DevKitM-1",
         "variant": VARIANT_ESP32C6,
     },
+    "esp32-c61-devkitc1": {
+        "name": "Espressif ESP32-C61-DevKitC-1 (4 MB Flash)",
+        "variant": VARIANT_ESP32C61,
+    },
     "esp32-c61-devkitc1-n8r2": {
         "name": "Espressif ESP32-C61-DevKitC-1 N8R2 (8 MB Flash Quad, 2 MB PSRAM Quad)",
         "variant": VARIANT_ESP32C61,
@@ -1718,6 +1722,10 @@ BOARDS = {
         "name": "Espressif ESP32-P4 rev.300 generic",
         "variant": VARIANT_ESP32P4,
     },
+    "esp32-p4_r3-evboard": {
+        "name": "Espressif ESP32-P4 Function EV Board v1.6 (rev.301)",
+        "variant": VARIANT_ESP32P4,
+    },
     "esp32-pico-devkitm-2": {
         "name": "Espressif ESP32-PICO-DevKitM-2",
         "variant": VARIANT_ESP32,
@@ -2554,6 +2562,10 @@ BOARDS = {
         "name": "XinaBox CW02",
         "variant": VARIANT_ESP32,
     },
+    "yb_esp32s3_amp": {
+        "name": "YelloByte YB-ESP32-S3-AMP",
+        "variant": VARIANT_ESP32S3,
+    },
     "yb_esp32s3_amp_v2": {
         "name": "YelloByte YB-ESP32-S3-AMP (Rev.2)",
         "variant": VARIANT_ESP32S3,
@@ -2562,6 +2574,10 @@ BOARDS = {
         "name": "YelloByte YB-ESP32-S3-AMP (Rev.3)",
         "variant": VARIANT_ESP32S3,
     },
+    "yb_esp32s3_dac": {
+        "name": "YelloByte YB-ESP32-S3-DAC",
+        "variant": VARIANT_ESP32S3,
+    },
     "yb_esp32s3_drv": {
         "name": "YelloByte YB-ESP32-S3-DRV",
         "variant": VARIANT_ESP32S3,

esphome/components/ethernet/__init__.py

@@ -130,11 +130,16 @@ ETHERNET_TYPES = {
 }
 
 # PHY types that need compile-time defines for conditional compilation
+# Each RMII PHY type gets a define so unused PHY drivers are excluded by the linker
 _PHY_TYPE_TO_DEFINE = {
+    "LAN8720": "USE_ETHERNET_LAN8720",
+    "RTL8201": "USE_ETHERNET_RTL8201",
+    "DP83848": "USE_ETHERNET_DP83848",
+    "IP101": "USE_ETHERNET_IP101",
+    "JL1101": "USE_ETHERNET_JL1101",
     "KSZ8081": "USE_ETHERNET_KSZ8081",
     "KSZ8081RNA": "USE_ETHERNET_KSZ8081",
     "LAN8670": "USE_ETHERNET_LAN8670",
-    # Add other PHY types here only if they need conditional compilation
 }
 
 SPI_ETHERNET_TYPES = ["W5500", "DM9051"]

esphome/components/ethernet/ethernet_component.cpp

@@ -186,31 +186,43 @@ void EthernetComponent::setup() {
     }
 #endif
 #if CONFIG_ETH_USE_ESP32_EMAC
+#ifdef USE_ETHERNET_LAN8720
     case ETHERNET_TYPE_LAN8720: {
       this->phy_ = esp_eth_phy_new_lan87xx(&phy_config);
       break;
     }
+#endif
+#ifdef USE_ETHERNET_RTL8201
     case ETHERNET_TYPE_RTL8201: {
       this->phy_ = esp_eth_phy_new_rtl8201(&phy_config);
       break;
     }
+#endif
+#ifdef USE_ETHERNET_DP83848
     case ETHERNET_TYPE_DP83848: {
       this->phy_ = esp_eth_phy_new_dp83848(&phy_config);
       break;
     }
+#endif
+#ifdef USE_ETHERNET_IP101
     case ETHERNET_TYPE_IP101: {
       this->phy_ = esp_eth_phy_new_ip101(&phy_config);
       break;
     }
+#endif
+#ifdef USE_ETHERNET_JL1101
     case ETHERNET_TYPE_JL1101: {
       this->phy_ = esp_eth_phy_new_jl1101(&phy_config);
       break;
     }
+#endif
+#ifdef USE_ETHERNET_KSZ8081
     case ETHERNET_TYPE_KSZ8081:
     case ETHERNET_TYPE_KSZ8081RNA: {
       this->phy_ = esp_eth_phy_new_ksz80xx(&phy_config);
       break;
     }
+#endif
 #ifdef USE_ETHERNET_LAN8670
     case ETHERNET_TYPE_LAN8670: {
       this->phy_ = esp_eth_phy_new_lan867x(&phy_config);
@@ -343,26 +355,32 @@ void EthernetComponent::loop() {
 void EthernetComponent::dump_config() {
   const char *eth_type;
   switch (this->type_) {
+#ifdef USE_ETHERNET_LAN8720
     case ETHERNET_TYPE_LAN8720:
       eth_type = "LAN8720";
       break;
-
+#endif
+#ifdef USE_ETHERNET_RTL8201
     case ETHERNET_TYPE_RTL8201:
       eth_type = "RTL8201";
       break;
-
+#endif
+#ifdef USE_ETHERNET_DP83848
     case ETHERNET_TYPE_DP83848:
       eth_type = "DP83848";
       break;
-
+#endif
+#ifdef USE_ETHERNET_IP101
     case ETHERNET_TYPE_IP101:
       eth_type = "IP101";
       break;
-
+#endif
+#ifdef USE_ETHERNET_JL1101
     case ETHERNET_TYPE_JL1101:
       eth_type = "JL1101";
       break;
-
+#endif
+#ifdef USE_ETHERNET_KSZ8081
     case ETHERNET_TYPE_KSZ8081:
       eth_type = "KSZ8081";
       break;
@@ -370,19 +388,22 @@ void EthernetComponent::dump_config() {
     case ETHERNET_TYPE_KSZ8081RNA:
       eth_type = "KSZ8081RNA";
       break;
-
+#endif
+#if CONFIG_ETH_SPI_ETHERNET_W5500
     case ETHERNET_TYPE_W5500:
       eth_type = "W5500";
       break;
-
-    case ETHERNET_TYPE_OPENETH:
-      eth_type = "OPENETH";
-      break;
-
+#endif
+#if CONFIG_ETH_SPI_ETHERNET_DM9051
     case ETHERNET_TYPE_DM9051:
       eth_type = "DM9051";
       break;
-
+#endif
+#ifdef USE_ETHERNET_OPENETH
+    case ETHERNET_TYPE_OPENETH:
+      eth_type = "OPENETH";
+      break;
+#endif
 #ifdef USE_ETHERNET_LAN8670
     case ETHERNET_TYPE_LAN8670:
       eth_type = "LAN8670";
@@ -686,16 +707,22 @@ void EthernetComponent::dump_connect_params_() {
   char gateway_buf[network::IP_ADDRESS_BUFFER_SIZE];
   char dns1_buf[network::IP_ADDRESS_BUFFER_SIZE];
   char dns2_buf[network::IP_ADDRESS_BUFFER_SIZE];
+  char mac_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
   ESP_LOGCONFIG(TAG,
                 "  IP Address: %s\n"
                 "  Hostname: '%s'\n"
                 "  Subnet: %s\n"
                 "  Gateway: %s\n"
                 "  DNS1: %s\n"
-                "  DNS2: %s",
+                "  DNS2: %s\n"
+                "  MAC Address: %s\n"
+                "  Is Full Duplex: %s\n"
+                "  Link Speed: %u",
                 network::IPAddress(&ip.ip).str_to(ip_buf), App.get_name().c_str(),
                 network::IPAddress(&ip.netmask).str_to(subnet_buf), network::IPAddress(&ip.gw).str_to(gateway_buf),
-                network::IPAddress(dns_ip1).str_to(dns1_buf), network::IPAddress(dns_ip2).str_to(dns2_buf));
+                network::IPAddress(dns_ip1).str_to(dns1_buf), network::IPAddress(dns_ip2).str_to(dns2_buf),
+                this->get_eth_mac_address_pretty_into_buffer(mac_buf),
+                YESNO(this->get_duplex_mode() == ETH_DUPLEX_FULL), this->get_link_speed() == ETH_SPEED_100M ? 100 : 10);
 
 #if USE_NETWORK_IPV6
   struct esp_ip6_addr if_ip6s[CONFIG_LWIP_IPV6_NUM_ADDRESSES];
@@ -706,14 +733,6 @@ void EthernetComponent::dump_connect_params_() {
     ESP_LOGCONFIG(TAG, "  IPv6: " IPV6STR, IPV62STR(if_ip6s[i]));
   }
 #endif /* USE_NETWORK_IPV6 */
-
-  char mac_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
-  ESP_LOGCONFIG(TAG,
-                "  MAC Address: %s\n"
-                "  Is Full Duplex: %s\n"
-                "  Link Speed: %u",
-                this->get_eth_mac_address_pretty_into_buffer(mac_buf),
-                YESNO(this->get_duplex_mode() == ETH_DUPLEX_FULL), this->get_link_speed() == ETH_SPEED_100M ? 100 : 10);
 }
 
 #ifdef USE_ETHERNET_SPI
@@ -837,13 +856,15 @@ void EthernetComponent::ksz8081_set_clock_reference_(esp_eth_mac_t *mac) {
 
 void EthernetComponent::write_phy_register_(esp_eth_mac_t *mac, PHYRegister register_data) {
   esp_err_t err;
-  constexpr uint8_t eth_phy_psr_reg_addr = 0x1F;
 
+#ifdef USE_ETHERNET_RTL8201
+  constexpr uint8_t eth_phy_psr_reg_addr = 0x1F;
   if (this->type_ == ETHERNET_TYPE_RTL8201 && register_data.page) {
     ESP_LOGD(TAG, "Select PHY Register Page: 0x%02" PRIX32, register_data.page);
     err = mac->write_phy_reg(mac, this->phy_addr_, eth_phy_psr_reg_addr, register_data.page);
     ESPHL_ERROR_CHECK(err, "Select PHY Register page failed");
   }
+#endif
 
   ESP_LOGD(TAG,
            "Writing to PHY Register Address: 0x%02" PRIX32 "\n"
@@ -852,11 +873,13 @@ void EthernetComponent::write_phy_register_(esp_eth_mac_t *mac, PHYRegister regi
   err = mac->write_phy_reg(mac, this->phy_addr_, register_data.address, register_data.value);
   ESPHL_ERROR_CHECK(err, "Writing PHY Register failed");
 
+#ifdef USE_ETHERNET_RTL8201
   if (this->type_ == ETHERNET_TYPE_RTL8201 && register_data.page) {
     ESP_LOGD(TAG, "Select PHY Register Page 0x00");
     err = mac->write_phy_reg(mac, this->phy_addr_, eth_phy_psr_reg_addr, 0x0);
     ESPHL_ERROR_CHECK(err, "Select PHY Register Page 0 failed");
   }
+#endif
 }
 
 #endif

esphome/components/serial_proxy/__init__.py

@@ -1,62 +0,0 @@
-"""
-Serial Proxy component for ESPHome.
-
-WARNING: This component is EXPERIMENTAL. The API (both Python configuration
-and C++ interfaces) may change at any time without following the normal
-breaking changes policy. Use at your own risk.
-
-Once the API is considered stable, this warning will be removed.
-
-Provides a proxy to/from a serial interface on the ESPHome device, allowing
-Home Assistant to connect to the serial port and send/receive data to/from
-an arbitrary serial device.
-"""
-
-from esphome import pins
-import esphome.codegen as cg
-from esphome.components import uart
-import esphome.config_validation as cv
-from esphome.const import CONF_ID
-
-CODEOWNERS = ["@kbx81"]
-DEPENDENCIES = ["api", "uart"]
-
-MULTI_CONF = True
-
-serial_proxy_ns = cg.esphome_ns.namespace("serial_proxy")
-SerialProxy = serial_proxy_ns.class_("SerialProxy", cg.Component, uart.UARTDevice)
-
-CONF_RTS_PIN = "rts_pin"
-CONF_DTR_PIN = "dtr_pin"
-
-
-CONFIG_SCHEMA = (
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.declare_id(SerialProxy),
-            cv.Optional(CONF_RTS_PIN): pins.gpio_output_pin_schema,
-            cv.Optional(CONF_DTR_PIN): pins.gpio_output_pin_schema,
-        }
-    )
-    .extend(cv.COMPONENT_SCHEMA)
-    .extend(uart.UART_DEVICE_SCHEMA)
-)
-
-
-async def to_code(config):
-    var = cg.new_Pvariable(config[CONF_ID])
-    await cg.register_component(var, config)
-    await uart.register_uart_device(var, config)
-    cg.add(cg.App.register_serial_proxy(var))
-    cg.add_define("USE_SERIAL_PROXY")
-
-    if CONF_RTS_PIN in config:
-        rts_pin = await cg.gpio_pin_expression(config[CONF_RTS_PIN])
-        cg.add(var.set_rts_pin(rts_pin))
-
-    if CONF_DTR_PIN in config:
-        dtr_pin = await cg.gpio_pin_expression(config[CONF_DTR_PIN])
-        cg.add(var.set_dtr_pin(dtr_pin))
-
-    # Request UART to wake the main loop when data arrives for low-latency processing
-    uart.request_wake_loop_on_rx()

esphome/components/serial_proxy/serial_proxy.cpp

@@ -1,131 +0,0 @@
-#include "serial_proxy.h"
-
-#ifdef USE_SERIAL_PROXY
-
-#include "esphome/core/log.h"
-
-#ifdef USE_API
-#include "esphome/components/api/api_server.h"
-#endif
-
-namespace esphome::serial_proxy {
-
-static const char *const TAG = "serial_proxy";
-
-void SerialProxy::setup() {
-  // Set up modem control pins if configured
-  if (this->rts_pin_ != nullptr) {
-    this->rts_pin_->setup();
-    this->rts_pin_->digital_write(this->rts_state_);
-  }
-  if (this->dtr_pin_ != nullptr) {
-    this->dtr_pin_->setup();
-    this->dtr_pin_->digital_write(this->dtr_state_);
-  }
-}
-
-void SerialProxy::loop() {
-  // Read available data from UART and forward to API clients
-  size_t available = this->available();
-  if (available == 0)
-    return;
-
-  // Read in chunks up to SERIAL_PROXY_MAX_READ_SIZE
-  uint8_t buffer[SERIAL_PROXY_MAX_READ_SIZE];
-  size_t to_read = std::min(available, sizeof(buffer));
-
-  if (!this->read_array(buffer, to_read))
-    return;
-
-#ifdef USE_API
-  if (api::global_api_server != nullptr) {
-    api::global_api_server->send_serial_proxy_data(this->instance_index_, buffer, to_read);
-  }
-#endif
-}
-
-void SerialProxy::dump_config() {
-  ESP_LOGCONFIG(TAG,
-                "Serial Proxy [%u]:\n"
-                "  RTS Pin: %s\n"
-                "  DTR Pin: %s",
-                this->instance_index_, this->rts_pin_ != nullptr ? "configured" : "not configured",
-                this->dtr_pin_ != nullptr ? "configured" : "not configured");
-}
-
-void SerialProxy::configure(uint32_t baudrate, bool flow_control, uint8_t parity, uint8_t stop_bits,
-                            uint8_t data_size) {
-  ESP_LOGD(TAG, "Configuring serial proxy [%u]: baud=%u, flow_ctrl=%s, parity=%u, stop=%u, data=%u",
-           this->instance_index_, baudrate, YESNO(flow_control), parity, stop_bits, data_size);
-
-  auto *uart_comp = this->parent_;
-  if (uart_comp == nullptr) {
-    ESP_LOGE(TAG, "UART component not available");
-    return;
-  }
-
-  // Apply UART parameters
-  uart_comp->set_baud_rate(baudrate);
-  uart_comp->set_stop_bits(stop_bits);
-  uart_comp->set_data_bits(data_size);
-
-  // Map parity enum to UARTParityOptions
-  switch (parity) {
-    case 0:
-      uart_comp->set_parity(uart::UART_CONFIG_PARITY_NONE);
-      break;
-    case 1:
-      uart_comp->set_parity(uart::UART_CONFIG_PARITY_EVEN);
-      break;
-    case 2:
-      uart_comp->set_parity(uart::UART_CONFIG_PARITY_ODD);
-      break;
-    default:
-      ESP_LOGW(TAG, "Unknown parity value: %u, using NONE", parity);
-      uart_comp->set_parity(uart::UART_CONFIG_PARITY_NONE);
-      break;
-  }
-
-    // Apply the new settings
-    // load_settings() is available on ESP8266 and ESP32 platforms
-#if defined(USE_ESP8266) || defined(USE_ESP32)
-  uart_comp->load_settings(true);
-#endif
-
-  // Note: Hardware flow control configuration is stored but not yet applied
-  // to the UART hardware - this requires additional platform support
-  (void) flow_control;
-}
-
-void SerialProxy::write(const uint8_t *data, size_t len) {
-  if (data == nullptr || len == 0)
-    return;
-  this->write_array(data, len);
-}
-
-void SerialProxy::set_modem_pins(bool rts, bool dtr) {
-  ESP_LOGV(TAG, "Setting modem pins [%u]: RTS=%s, DTR=%s", this->instance_index_, ONOFF(rts), ONOFF(dtr));
-
-  if (this->rts_pin_ != nullptr) {
-    this->rts_state_ = rts;
-    this->rts_pin_->digital_write(rts);
-  }
-  if (this->dtr_pin_ != nullptr) {
-    this->dtr_state_ = dtr;
-    this->dtr_pin_->digital_write(dtr);
-  }
-}
-
-void SerialProxy::get_modem_pins(bool &rts, bool &dtr) const {
-  rts = this->rts_state_;
-  dtr = this->dtr_state_;
-}
-
-void SerialProxy::flush_port() {
-  ESP_LOGV(TAG, "Flushing serial proxy [%u]", this->instance_index_);
-  this->flush();
-}
-
-}  // namespace esphome::serial_proxy
-
-#endif  // USE_SERIAL_PROXY

esphome/components/serial_proxy/serial_proxy.h

@@ -1,80 +0,0 @@
-#pragma once
-
-// WARNING: This component is EXPERIMENTAL. The API may change at any time
-// without following the normal breaking changes policy. Use at your own risk.
-// Once the API is considered stable, this warning will be removed.
-
-#include "esphome/core/defines.h"
-
-#ifdef USE_SERIAL_PROXY
-
-#include "esphome/core/component.h"
-#include "esphome/core/hal.h"
-#include "esphome/components/uart/uart.h"
-
-namespace esphome::serial_proxy {
-
-/// Maximum bytes to read from UART in a single loop iteration
-static constexpr size_t SERIAL_PROXY_MAX_READ_SIZE = 256;
-
-class SerialProxy : public uart::UARTDevice, public Component {
- public:
-  void setup() override;
-  void loop() override;
-  void dump_config() override;
-  float get_setup_priority() const override { return setup_priority::AFTER_CONNECTION; }
-
-  /// Get the instance index (position in Application's serial_proxies_ vector)
-  uint32_t get_instance_index() const { return this->instance_index_; }
-
-  /// Set the instance index (called by Application::register_serial_proxy)
-  void set_instance_index(uint32_t index) { this->instance_index_ = index; }
-
-  /// Configure UART parameters and apply them
-  /// @param baudrate Baud rate in bits per second
-  /// @param flow_control True to enable hardware flow control
-  /// @param parity Parity setting (0=none, 1=even, 2=odd)
-  /// @param stop_bits Number of stop bits (1 or 2)
-  /// @param data_size Number of data bits (5-8)
-  void configure(uint32_t baudrate, bool flow_control, uint8_t parity, uint8_t stop_bits, uint8_t data_size);
-
-  /// Write data to the serial device
-  /// @param data Pointer to data buffer
-  /// @param len Number of bytes to write
-  void write(const uint8_t *data, size_t len);
-
-  /// Set modem pin states (RTS and DTR)
-  /// @param rts Desired RTS pin state
-  /// @param dtr Desired DTR pin state
-  void set_modem_pins(bool rts, bool dtr);
-
-  /// Get current modem pin states
-  /// @param[out] rts Current RTS pin state
-  /// @param[out] dtr Current DTR pin state
-  void get_modem_pins(bool &rts, bool &dtr) const;
-
-  /// Flush the serial port (block until all TX data is sent)
-  void flush_port();
-
-  /// Set the RTS GPIO pin (from YAML configuration)
-  void set_rts_pin(GPIOPin *pin) { this->rts_pin_ = pin; }
-
-  /// Set the DTR GPIO pin (from YAML configuration)
-  void set_dtr_pin(GPIOPin *pin) { this->dtr_pin_ = pin; }
-
- protected:
-  /// Instance index for identifying this proxy in API messages
-  uint32_t instance_index_{0};
-
-  /// Optional GPIO pins for modem control
-  GPIOPin *rts_pin_{nullptr};
-  GPIOPin *dtr_pin_{nullptr};
-
-  /// Current modem pin states
-  bool rts_state_{false};
-  bool dtr_state_{false};
-};
-
-}  // namespace esphome::serial_proxy
-
-#endif  // USE_SERIAL_PROXY

esphome/components/time/posix_tz.cpp

@@ -0,0 +1,481 @@
+#include "esphome/core/defines.h"
+
+#ifdef USE_TIME_TIMEZONE
+
+#include "posix_tz.h"
+#include <cctype>
+
+namespace esphome::time {
+
+// Global timezone - set once at startup, rarely changes
+// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables) - intentional mutable state
+static ParsedTimezone global_tz_{};
+
+void set_global_tz(const ParsedTimezone &tz) { global_tz_ = tz; }
+
+const ParsedTimezone &get_global_tz() { return global_tz_; }
+
+namespace internal {
+
+// Helper to parse an unsigned integer from string, updating pointer
+static uint32_t parse_uint(const char *&p) {
+  uint32_t value = 0;
+  while (std::isdigit(static_cast<unsigned char>(*p))) {
+    value = value * 10 + (*p - '0');
+    p++;
+  }
+  return value;
+}
+
+bool is_leap_year(int year) { return (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0); }
+
+// Get days in year (avoids duplicate is_leap_year calls)
+static inline int days_in_year(int year) { return is_leap_year(year) ? 366 : 365; }
+
+// Convert days since epoch to year, updating days to remainder
+static int __attribute__((noinline)) days_to_year(int64_t &days) {
+  int year = 1970;
+  int diy;
+  while (days >= (diy = days_in_year(year))) {
+    days -= diy;
+    year++;
+  }
+  while (days < 0) {
+    year--;
+    days += days_in_year(year);
+  }
+  return year;
+}
+
+// Extract just the year from a UTC epoch
+static int epoch_to_year(time_t epoch) {
+  int64_t days = epoch / 86400;
+  if (epoch < 0 && epoch % 86400 != 0)
+    days--;
+  return days_to_year(days);
+}
+
+int days_in_month(int year, int month) {
+  switch (month) {
+    case 2:
+      return is_leap_year(year) ? 29 : 28;
+    case 4:
+    case 6:
+    case 9:
+    case 11:
+      return 30;
+    default:
+      return 31;
+  }
+}
+
+// Zeller-like algorithm for day of week (0 = Sunday)
+int __attribute__((noinline)) day_of_week(int year, int month, int day) {
+  // Adjust for January/February
+  if (month < 3) {
+    month += 12;
+    year--;
+  }
+  int k = year % 100;
+  int j = year / 100;
+  int h = (day + (13 * (month + 1)) / 5 + k + k / 4 + j / 4 - 2 * j) % 7;
+  // Convert from Zeller (0=Sat) to standard (0=Sun)
+  return ((h + 6) % 7);
+}
+
+void __attribute__((noinline)) epoch_to_tm_utc(time_t epoch, struct tm *out_tm) {
+  // Days since epoch
+  int64_t days = epoch / 86400;
+  int32_t remaining_secs = epoch % 86400;
+  if (remaining_secs < 0) {
+    days--;
+    remaining_secs += 86400;
+  }
+
+  out_tm->tm_sec = remaining_secs % 60;
+  remaining_secs /= 60;
+  out_tm->tm_min = remaining_secs % 60;
+  out_tm->tm_hour = remaining_secs / 60;
+
+  // Day of week (Jan 1, 1970 was Thursday = 4)
+  out_tm->tm_wday = static_cast<int>((days + 4) % 7);
+  if (out_tm->tm_wday < 0)
+    out_tm->tm_wday += 7;
+
+  // Calculate year (updates days to day-of-year)
+  int year = days_to_year(days);
+  out_tm->tm_year = year - 1900;
+  out_tm->tm_yday = static_cast<int>(days);
+
+  // Calculate month and day
+  int month = 1;
+  int dim;
+  while (days >= (dim = days_in_month(year, month))) {
+    days -= dim;
+    month++;
+  }
+
+  out_tm->tm_mon = month - 1;
+  out_tm->tm_mday = static_cast<int>(days) + 1;
+  out_tm->tm_isdst = 0;
+}
+
+bool skip_tz_name(const char *&p) {
+  if (*p == '<') {
+    // Angle-bracket quoted name: <+07>, <-03>, <AEST>
+    p++;  // skip '<'
+    while (*p && *p != '>') {
+      p++;
+    }
+    if (*p == '>') {
+      p++;  // skip '>'
+      return true;
+    }
+    return false;  // Unterminated
+  }
+
+  // Standard name: 3+ letters
+  const char *start = p;
+  while (*p && std::isalpha(static_cast<unsigned char>(*p))) {
+    p++;
+  }
+  return (p - start) >= 3;
+}
+
+int32_t __attribute__((noinline)) parse_offset(const char *&p) {
+  int sign = 1;
+  if (*p == '-') {
+    sign = -1;
+    p++;
+  } else if (*p == '+') {
+    p++;
+  }
+
+  int hours = parse_uint(p);
+  int minutes = 0;
+  int seconds = 0;
+
+  if (*p == ':') {
+    p++;
+    minutes = parse_uint(p);
+    if (*p == ':') {
+      p++;
+      seconds = parse_uint(p);
+    }
+  }
+
+  return sign * (hours * 3600 + minutes * 60 + seconds);
+}
+
+// Helper to parse the optional /time suffix (reuses parse_offset logic)
+static void parse_transition_time(const char *&p, DSTRule &rule) {
+  rule.time_seconds = 2 * 3600;  // Default 02:00
+  if (*p == '/') {
+    p++;
+    rule.time_seconds = parse_offset(p);
+  }
+}
+
+void __attribute__((noinline)) julian_to_month_day(int julian_day, int &out_month, int &out_day) {
+  // J format: day 1-365, Feb 29 is NOT counted even in leap years
+  // So day 60 is always March 1
+  // Iterate forward through months (no array needed)
+  int remaining = julian_day;
+  out_month = 1;
+  while (out_month <= 12) {
+    // Days in month for non-leap year (J format ignores leap years)
+    int dim = days_in_month(2001, out_month);  // 2001 is non-leap year
+    if (remaining <= dim) {
+      out_day = remaining;
+      return;
+    }
+    remaining -= dim;
+    out_month++;
+  }
+  out_day = remaining;
+}
+
+void __attribute__((noinline)) day_of_year_to_month_day(int day_of_year, int year, int &out_month, int &out_day) {
+  // Plain format: day 0-365, Feb 29 IS counted in leap years
+  // Day 0 = Jan 1
+  int remaining = day_of_year;
+  out_month = 1;
+
+  while (out_month <= 12) {
+    int days_this_month = days_in_month(year, out_month);
+    if (remaining < days_this_month) {
+      out_day = remaining + 1;
+      return;
+    }
+    remaining -= days_this_month;
+    out_month++;
+  }
+
+  // Shouldn't reach here with valid input
+  out_month = 12;
+  out_day = 31;
+}
+
+bool parse_dst_rule(const char *&p, DSTRule &rule) {
+  rule = {};  // Zero initialize
+
+  if (*p == 'M' || *p == 'm') {
+    // M format: Mm.w.d (month.week.day)
+    rule.type = DSTRuleType::MONTH_WEEK_DAY;
+    p++;
+
+    rule.month = parse_uint(p);
+    if (rule.month < 1 || rule.month > 12)
+      return false;
+
+    if (*p++ != '.')
+      return false;
+
+    rule.week = parse_uint(p);
+    if (rule.week < 1 || rule.week > 5)
+      return false;
+
+    if (*p++ != '.')
+      return false;
+
+    rule.day_of_week = parse_uint(p);
+    if (rule.day_of_week > 6)
+      return false;
+
+  } else if (*p == 'J' || *p == 'j') {
+    // J format: Jn (Julian day 1-365, not counting Feb 29)
+    rule.type = DSTRuleType::JULIAN_NO_LEAP;
+    p++;
+
+    rule.day = parse_uint(p);
+    if (rule.day < 1 || rule.day > 365)
+      return false;
+
+  } else if (std::isdigit(static_cast<unsigned char>(*p))) {
+    // Plain number format: n (day 0-365, counting Feb 29)
+    rule.type = DSTRuleType::DAY_OF_YEAR;
+
+    rule.day = parse_uint(p);
+    if (rule.day > 365)
+      return false;
+
+  } else {
+    return false;
+  }
+
+  // Parse optional /time suffix
+  parse_transition_time(p, rule);
+
+  return true;
+}
+
+// Calculate days from Jan 1 of given year to given month/day
+static int __attribute__((noinline)) days_from_year_start(int year, int month, int day) {
+  int days = day - 1;
+  for (int m = 1; m < month; m++) {
+    days += days_in_month(year, m);
+  }
+  return days;
+}
+
+// Calculate days from epoch to Jan 1 of given year (for DST transition calculations)
+// Only supports years >= 1970. Timezone is either compiled in from YAML or set by
+// Home Assistant, so pre-1970 dates are not a concern.
+static int64_t __attribute__((noinline)) days_to_year_start(int year) {
+  int64_t days = 0;
+  for (int y = 1970; y < year; y++) {
+    days += days_in_year(y);
+  }
+  return days;
+}
+
+time_t __attribute__((noinline)) calculate_dst_transition(int year, const DSTRule &rule, int32_t base_offset_seconds) {
+  int month, day;
+
+  switch (rule.type) {
+    case DSTRuleType::MONTH_WEEK_DAY: {
+      // Find the nth occurrence of day_of_week in the given month
+      int first_dow = day_of_week(year, rule.month, 1);
+
+      // Days until first occurrence of target day
+      int days_until_first = (rule.day_of_week - first_dow + 7) % 7;
+      int first_occurrence = 1 + days_until_first;
+
+      if (rule.week == 5) {
+        // "Last" occurrence - find the last one in the month
+        int dim = days_in_month(year, rule.month);
+        day = first_occurrence;
+        while (day + 7 <= dim) {
+          day += 7;
+        }
+      } else {
+        // nth occurrence
+        day = first_occurrence + (rule.week - 1) * 7;
+      }
+      month = rule.month;
+      break;
+    }
+
+    case DSTRuleType::JULIAN_NO_LEAP:
+      // J format: day 1-365, Feb 29 not counted
+      julian_to_month_day(rule.day, month, day);
+      break;
+
+    case DSTRuleType::DAY_OF_YEAR:
+      // Plain format: day 0-365, Feb 29 counted
+      day_of_year_to_month_day(rule.day, year, month, day);
+      break;
+
+    case DSTRuleType::NONE:
+      // Should never be called with NONE, but handle it gracefully
+      month = 1;
+      day = 1;
+      break;
+  }
+
+  // Calculate days from epoch to this date
+  int64_t days = days_to_year_start(year) + days_from_year_start(year, month, day);
+
+  // Convert to epoch and add transition time and base offset
+  return days * 86400 + rule.time_seconds + base_offset_seconds;
+}
+
+}  // namespace internal
+
+bool __attribute__((noinline)) is_in_dst(time_t utc_epoch, const ParsedTimezone &tz) {
+  if (!tz.has_dst()) {
+    return false;
+  }
+
+  int year = internal::epoch_to_year(utc_epoch);
+
+  // Calculate DST start and end for this year
+  // DST start transition happens in standard time
+  time_t dst_start = internal::calculate_dst_transition(year, tz.dst_start, tz.std_offset_seconds);
+  // DST end transition happens in daylight time
+  time_t dst_end = internal::calculate_dst_transition(year, tz.dst_end, tz.dst_offset_seconds);
+
+  if (dst_start < dst_end) {
+    // Northern hemisphere: DST is between start and end
+    return (utc_epoch >= dst_start && utc_epoch < dst_end);
+  } else {
+    // Southern hemisphere: DST is outside the range (wraps around year)
+    return (utc_epoch >= dst_start || utc_epoch < dst_end);
+  }
+}
+
+bool parse_posix_tz(const char *tz_string, ParsedTimezone &result) {
+  if (!tz_string || !*tz_string) {
+    return false;
+  }
+
+  const char *p = tz_string;
+
+  // Initialize result (dst_start/dst_end default to type=NONE, so has_dst() returns false)
+  result.std_offset_seconds = 0;
+  result.dst_offset_seconds = 0;
+  result.dst_start = {};
+  result.dst_end = {};
+
+  // Skip standard timezone name
+  if (!internal::skip_tz_name(p)) {
+    return false;
+  }
+
+  // Parse standard offset (required)
+  if (!*p || (!std::isdigit(static_cast<unsigned char>(*p)) && *p != '+' && *p != '-')) {
+    return false;
+  }
+  result.std_offset_seconds = internal::parse_offset(p);
+
+  // Check for DST name
+  if (!*p) {
+    return true;  // No DST
+  }
+
+  // If next char is comma, there's no DST name but there are rules (invalid)
+  if (*p == ',') {
+    return false;
+  }
+
+  // Check if there's something that looks like a DST name start
+  // (letter or angle bracket). If not, treat as trailing garbage and return success.
+  if (!std::isalpha(static_cast<unsigned char>(*p)) && *p != '<') {
+    return true;  // No DST, trailing characters ignored
+  }
+
+  if (!internal::skip_tz_name(p)) {
+    return false;  // Invalid DST name (started but malformed)
+  }
+
+  // Optional DST offset (default is std - 1 hour)
+  if (*p && *p != ',' && (std::isdigit(static_cast<unsigned char>(*p)) || *p == '+' || *p == '-')) {
+    result.dst_offset_seconds = internal::parse_offset(p);
+  } else {
+    result.dst_offset_seconds = result.std_offset_seconds - 3600;
+  }
+
+  // Parse DST rules (required when DST name is present)
+  if (*p != ',') {
+    // DST name without rules - treat as no DST since we can't determine transitions
+    return true;
+  }
+
+  p++;
+  if (!internal::parse_dst_rule(p, result.dst_start)) {
+    return false;
+  }
+
+  // Second rule is required per POSIX
+  if (*p != ',') {
+    return false;
+  }
+  p++;
+  // has_dst() now returns true since dst_start.type was set by parse_dst_rule
+  return internal::parse_dst_rule(p, result.dst_end);
+}
+
+bool epoch_to_local_tm(time_t utc_epoch, const ParsedTimezone &tz, struct tm *out_tm) {
+  if (!out_tm) {
+    return false;
+  }
+
+  // Determine DST status once (avoids duplicate is_in_dst calculation)
+  bool in_dst = is_in_dst(utc_epoch, tz);
+  int32_t offset = in_dst ? tz.dst_offset_seconds : tz.std_offset_seconds;
+
+  // Apply offset (POSIX offset is positive west, so subtract to get local)
+  time_t local_epoch = utc_epoch - offset;
+
+  internal::epoch_to_tm_utc(local_epoch, out_tm);
+  out_tm->tm_isdst = in_dst ? 1 : 0;
+
+  return true;
+}
+
+}  // namespace esphome::time
+
+#ifndef USE_HOST
+// Override libc's localtime functions to use our timezone on embedded platforms.
+// This allows user lambdas calling ::localtime() to get correct local time
+// without needing the TZ environment variable (which pulls in scanf bloat).
+// On host, we use the normal TZ mechanism since there's no memory constraint.
+
+// Thread-safe version
+extern "C" struct tm *localtime_r(const time_t *timer, struct tm *result) {
+  if (timer == nullptr || result == nullptr) {
+    return nullptr;
+  }
+  esphome::time::epoch_to_local_tm(*timer, esphome::time::get_global_tz(), result);
+  return result;
+}
+
+// Non-thread-safe version (uses static buffer, standard libc behavior)
+extern "C" struct tm *localtime(const time_t *timer) {
+  // NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
+  static struct tm localtime_buf;
+  return localtime_r(timer, &localtime_buf);
+}
+#endif  // !USE_HOST
+
+#endif  // USE_TIME_TIMEZONE

esphome/components/time/posix_tz.h

@@ -0,0 +1,132 @@
+#pragma once
+
+#ifdef USE_TIME_TIMEZONE
+
+#include <cstdint>
+#include <ctime>
+
+namespace esphome::time {
+
+/// Type of DST transition rule
+enum class DSTRuleType : uint8_t {
+  NONE = 0,        ///< No DST rule (used to indicate no DST)
+  MONTH_WEEK_DAY,  ///< M format: Mm.w.d (e.g., M3.2.0 = 2nd Sunday of March)
+  JULIAN_NO_LEAP,  ///< J format: Jn (day 1-365, Feb 29 not counted)
+  DAY_OF_YEAR,     ///< Plain number: n (day 0-365, Feb 29 counted in leap years)
+};
+
+/// Rule for DST transition (packed for 32-bit: 12 bytes)
+struct DSTRule {
+  int32_t time_seconds;  ///< Seconds after midnight (default 7200 = 2:00 AM)
+  uint16_t day;          ///< Day of year (for JULIAN_NO_LEAP and DAY_OF_YEAR)
+  DSTRuleType type;      ///< Type of rule
+  uint8_t month;         ///< Month 1-12 (for MONTH_WEEK_DAY)
+  uint8_t week;          ///< Week 1-5, 5 = last (for MONTH_WEEK_DAY)
+  uint8_t day_of_week;   ///< Day 0-6, 0 = Sunday (for MONTH_WEEK_DAY)
+};
+
+/// Parsed POSIX timezone information (packed for 32-bit: 32 bytes)
+struct ParsedTimezone {
+  int32_t std_offset_seconds;  ///< Standard time offset from UTC in seconds (positive = west)
+  int32_t dst_offset_seconds;  ///< DST offset from UTC in seconds
+  DSTRule dst_start;           ///< When DST starts
+  DSTRule dst_end;             ///< When DST ends
+
+  /// Check if this timezone has DST rules
+  bool has_dst() const { return this->dst_start.type != DSTRuleType::NONE; }
+};
+
+/// Parse a POSIX TZ string into a ParsedTimezone struct.
+/// Supports formats like:
+///   - "EST5" (simple offset, no DST)
+///   - "EST5EDT,M3.2.0,M11.1.0" (with DST, M-format rules)
+///   - "CST6CDT,M3.2.0/2,M11.1.0/2" (with transition times)
+///   - "<+07>-7" (angle-bracket notation for special names)
+///   - "IST-5:30" (half-hour offsets)
+///   - "EST5EDT,J60,J300" (J-format: Julian day without leap day)
+///   - "EST5EDT,60,300" (plain day number: day of year with leap day)
+/// @param tz_string The POSIX TZ string to parse
+/// @param result Output: the parsed timezone data
+/// @return true if parsing succeeded, false on error
+bool parse_posix_tz(const char *tz_string, ParsedTimezone &result);
+
+/// Convert a UTC epoch to local time using the parsed timezone.
+/// This replaces libc's localtime() to avoid scanf dependency.
+/// @param utc_epoch Unix timestamp in UTC
+/// @param tz The parsed timezone
+/// @param[out] out_tm Output tm struct with local time
+/// @return true on success
+bool epoch_to_local_tm(time_t utc_epoch, const ParsedTimezone &tz, struct tm *out_tm);
+
+/// Set the global timezone used by epoch_to_local_tm() when called without a timezone.
+/// This is called by RealTimeClock::apply_timezone_() to enable ESPTime::from_epoch_local()
+/// to work without libc's localtime().
+void set_global_tz(const ParsedTimezone &tz);
+
+/// Get the global timezone.
+const ParsedTimezone &get_global_tz();
+
+/// Check if a given UTC epoch falls within DST for the parsed timezone.
+/// @param utc_epoch Unix timestamp in UTC
+/// @param tz The parsed timezone
+/// @return true if DST is in effect at the given time
+bool is_in_dst(time_t utc_epoch, const ParsedTimezone &tz);
+
+// Internal helper functions exposed for testing
+
+namespace internal {
+
+/// Skip a timezone name (letters or <...> quoted format)
+/// @param p Pointer to current position, updated on return
+/// @return true if a valid name was found
+bool skip_tz_name(const char *&p);
+
+/// Parse an offset in format [-]hh[:mm[:ss]]
+/// @param p Pointer to current position, updated on return
+/// @return Offset in seconds
+int32_t parse_offset(const char *&p);
+
+/// Parse a DST rule in format Mm.w.d[/time], Jn[/time], or n[/time]
+/// @param p Pointer to current position, updated on return
+/// @param rule Output: the parsed rule
+/// @return true if parsing succeeded
+bool parse_dst_rule(const char *&p, DSTRule &rule);
+
+/// Convert Julian day (J format, 1-365 not counting Feb 29) to month/day
+/// @param julian_day Day number 1-365
+/// @param[out] month Output: month 1-12
+/// @param[out] day Output: day of month
+void julian_to_month_day(int julian_day, int &month, int &day);
+
+/// Convert day of year (plain format, 0-365 counting Feb 29) to month/day
+/// @param day_of_year Day number 0-365
+/// @param year The year (for leap year calculation)
+/// @param[out] month Output: month 1-12
+/// @param[out] day Output: day of month
+void day_of_year_to_month_day(int day_of_year, int year, int &month, int &day);
+
+/// Calculate day of week for any date (0 = Sunday)
+/// Uses a simplified algorithm that works for years 1970-2099
+int day_of_week(int year, int month, int day);
+
+/// Get the number of days in a month
+int days_in_month(int year, int month);
+
+/// Check if a year is a leap year
+bool is_leap_year(int year);
+
+/// Convert epoch to year/month/day/hour/min/sec (UTC)
+void epoch_to_tm_utc(time_t epoch, struct tm *out_tm);
+
+/// Calculate the epoch timestamp for a DST transition in a given year.
+/// @param year The year (e.g., 2026)
+/// @param rule The DST rule (month, week, day_of_week, time)
+/// @param base_offset_seconds The timezone offset to apply (std or dst depending on context)
+/// @return Unix epoch timestamp of the transition
+time_t calculate_dst_transition(int year, const DSTRule &rule, int32_t base_offset_seconds);
+
+}  // namespace internal
+
+}  // namespace esphome::time
+
+#endif  // USE_TIME_TIMEZONE

esphome/components/time/real_time_clock.cpp

@@ -14,8 +14,8 @@
 #include <sys/time.h>
 #endif
 #include <cerrno>
-
 #include <cinttypes>
+#include <cstdlib>
 
 namespace esphome::time {
 
@@ -23,9 +23,33 @@ static const char *const TAG = "time";
 
 RealTimeClock::RealTimeClock() = default;
 
+ESPTime __attribute__((noinline)) RealTimeClock::now() {
+#ifdef USE_TIME_TIMEZONE
+  time_t epoch = this->timestamp_now();
+  struct tm local_tm;
+  if (epoch_to_local_tm(epoch, get_global_tz(), &local_tm)) {
+    return ESPTime::from_c_tm(&local_tm, epoch);
+  }
+  // Fallback to UTC if parsing failed
+  return ESPTime::from_epoch_utc(epoch);
+#else
+  return ESPTime::from_epoch_local(this->timestamp_now());
+#endif
+}
+
 void RealTimeClock::dump_config() {
 #ifdef USE_TIME_TIMEZONE
-  ESP_LOGCONFIG(TAG, "Timezone: '%s'", this->timezone_.c_str());
+  const auto &tz = get_global_tz();
+  // POSIX offset is positive west, negate for conventional UTC+X display
+  int std_h = -tz.std_offset_seconds / 3600;
+  int std_m = (std::abs(tz.std_offset_seconds) % 3600) / 60;
+  if (tz.has_dst()) {
+    int dst_h = -tz.dst_offset_seconds / 3600;
+    int dst_m = (std::abs(tz.dst_offset_seconds) % 3600) / 60;
+    ESP_LOGCONFIG(TAG, "Timezone: UTC%+d:%02d (DST UTC%+d:%02d)", std_h, std_m, dst_h, dst_m);
+  } else {
+    ESP_LOGCONFIG(TAG, "Timezone: UTC%+d:%02d", std_h, std_m);
+  }
 #endif
   auto time = this->now();
   ESP_LOGCONFIG(TAG, "Current time: %04d-%02d-%02d %02d:%02d:%02d", time.year, time.month, time.day_of_month, time.hour,
@@ -72,11 +96,6 @@ void RealTimeClock::synchronize_epoch_(uint32_t epoch) {
     ret = settimeofday(&timev, nullptr);
   }
 
-#ifdef USE_TIME_TIMEZONE
-  // Move timezone back to local timezone.
-  this->apply_timezone_();
-#endif
-
   if (ret != 0) {
     ESP_LOGW(TAG, "setimeofday() failed with code %d", ret);
   }
@@ -89,9 +108,29 @@ void RealTimeClock::synchronize_epoch_(uint32_t epoch) {
 }
 
 #ifdef USE_TIME_TIMEZONE
-void RealTimeClock::apply_timezone_() {
-  setenv("TZ", this->timezone_.c_str(), 1);
+void RealTimeClock::apply_timezone_(const char *tz) {
+  ParsedTimezone parsed{};
+
+  // Handle null or empty input - use UTC
+  if (tz == nullptr || *tz == '\0') {
+    set_global_tz(parsed);
+    return;
+  }
+
+#ifdef USE_HOST
+  // On host platform, also set TZ environment variable for libc compatibility
+  setenv("TZ", tz, 1);
   tzset();
+#endif
+
+  // Parse the POSIX TZ string using our custom parser
+  if (!parse_posix_tz(tz, parsed)) {
+    ESP_LOGW(TAG, "Failed to parse timezone: %s", tz);
+    // parsed stays as default (UTC) on failure
+  }
+
+  // Set global timezone for all time conversions
+  set_global_tz(parsed);
 }
 #endif
 

esphome/components/time/real_time_clock.h

@@ -6,6 +6,9 @@
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/time.h"
+#ifdef USE_TIME_TIMEZONE
+#include "posix_tz.h"
+#endif
 
 namespace esphome::time {
 
@@ -20,26 +23,31 @@ class RealTimeClock : public PollingComponent {
   explicit RealTimeClock();
 
 #ifdef USE_TIME_TIMEZONE
-  /// Set the time zone.
-  void set_timezone(const std::string &tz) {
-    this->timezone_ = tz;
-    this->apply_timezone_();
-  }
+  /// Set the time zone from a POSIX TZ string.
+  void set_timezone(const char *tz) { this->apply_timezone_(tz); }
 
-  /// Set the time zone from raw buffer, only if it differs from the current one.
+  /// Set the time zone from a character buffer with known length.
+  /// The buffer does not need to be null-terminated.
   void set_timezone(const char *tz, size_t len) {
-    if (this->timezone_.length() != len || memcmp(this->timezone_.c_str(), tz, len) != 0) {
-      this->timezone_.assign(tz, len);
-      this->apply_timezone_();
+    if (tz == nullptr) {
+      this->apply_timezone_(nullptr);
+      return;
     }
+    // Stack buffer - TZ strings from tzdata are typically short (< 50 chars)
+    char buf[128];
+    if (len >= sizeof(buf))
+      len = sizeof(buf) - 1;
+    memcpy(buf, tz, len);
+    buf[len] = '\0';
+    this->apply_timezone_(buf);
   }
 
-  /// Get the time zone currently in use.
-  std::string get_timezone() { return this->timezone_; }
+  /// Set the time zone from a std::string.
+  void set_timezone(const std::string &tz) { this->apply_timezone_(tz.c_str()); }
 #endif
 
   /// Get the time in the currently defined timezone.
-  ESPTime now() { return ESPTime::from_epoch_local(this->timestamp_now()); }
+  ESPTime now();
 
   /// Get the time without any time zone or DST corrections.
   ESPTime utcnow() { return ESPTime::from_epoch_utc(this->timestamp_now()); }
@@ -58,8 +66,7 @@ class RealTimeClock : public PollingComponent {
   void synchronize_epoch_(uint32_t epoch);
 
 #ifdef USE_TIME_TIMEZONE
-  std::string timezone_{};
-  void apply_timezone_();
+  void apply_timezone_(const char *tz);
 #endif
 
   LazyCallbackManager<void()> time_sync_callback_;

esphome/components/wifi/__init__.py

@@ -288,11 +288,6 @@ def _validate(config):
         config = config.copy()
         config[CONF_NETWORKS] = []
 
-    if config.get(CONF_FAST_CONNECT, False):
-        networks = config.get(CONF_NETWORKS, [])
-        if not networks:
-            raise cv.Invalid("At least one network required for fast_connect!")
-
     if CONF_USE_ADDRESS not in config:
         use_address = CORE.name + config[CONF_DOMAIN]
         if CONF_MANUAL_IP in config:

esphome/const.py

@@ -4,7 +4,7 @@ from enum import Enum
 
 from esphome.enum import StrEnum
 
-__version__ = "2026.2.0-dev"
+__version__ = "2026.3.0-dev"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (

esphome/core/application.h

@@ -94,9 +94,6 @@
 #ifdef USE_INFRARED
 #include "esphome/components/infrared/infrared.h"
 #endif
-#ifdef USE_SERIAL_PROXY
-#include "esphome/components/serial_proxy/serial_proxy.h"
-#endif
 #ifdef USE_EVENT
 #include "esphome/components/event/event.h"
 #endif
@@ -237,13 +234,6 @@ class Application {
   void register_infrared(infrared::Infrared *infrared) { this->infrareds_.push_back(infrared); }
 #endif
 
-#ifdef USE_SERIAL_PROXY
-  void register_serial_proxy(serial_proxy::SerialProxy *proxy) {
-    proxy->set_instance_index(this->serial_proxies_.size());
-    this->serial_proxies_.push_back(proxy);
-  }
-#endif
-
 #ifdef USE_EVENT
   void register_event(event::Event *event) { this->events_.push_back(event); }
 #endif
@@ -483,10 +473,6 @@ class Application {
   GET_ENTITY_METHOD(infrared::Infrared, infrared, infrareds)
 #endif
 
-#ifdef USE_SERIAL_PROXY
-  auto &get_serial_proxies() const { return this->serial_proxies_; }
-#endif
-
 #ifdef USE_EVENT
   auto &get_events() const { return this->events_; }
   GET_ENTITY_METHOD(event::Event, event, events)
@@ -704,9 +690,6 @@ class Application {
 #ifdef USE_INFRARED
   StaticVector<infrared::Infrared *, ESPHOME_ENTITY_INFRARED_COUNT> infrareds_{};
 #endif
-#ifdef USE_SERIAL_PROXY
-  std::vector<serial_proxy::SerialProxy *> serial_proxies_{};
-#endif
 #ifdef USE_UPDATE
   StaticVector<update::UpdateEntity *, ESPHOME_ENTITY_UPDATE_COUNT> updates_{};
 #endif

esphome/core/defines.h

@@ -109,7 +109,6 @@
 #define USE_SAFE_MODE_CALLBACK
 #define USE_SELECT
 #define USE_SENSOR
-#define USE_SERIAL_PROXY
 #define USE_STATUS_LED
 #define USE_STATUS_SENSOR
 #define USE_SWITCH
@@ -240,9 +239,15 @@
 #define USB_HOST_MAX_REQUESTS 16
 
 #ifdef USE_ARDUINO
-#define USE_ARDUINO_VERSION_CODE VERSION_CODE(3, 3, 6)
+#define USE_ARDUINO_VERSION_CODE VERSION_CODE(3, 3, 7)
 #define USE_ETHERNET
+#define USE_ETHERNET_LAN8720
+#define USE_ETHERNET_RTL8201
+#define USE_ETHERNET_DP83848
+#define USE_ETHERNET_IP101
+#define USE_ETHERNET_JL1101
 #define USE_ETHERNET_KSZ8081
+#define USE_ETHERNET_LAN8670
 #define USE_ETHERNET_MANUAL_IP
 #define USE_ETHERNET_IP_STATE_LISTENERS
 #define USE_ETHERNET_CONNECT_TRIGGER

esphome/core/time.cpp

@@ -2,7 +2,6 @@
 #include "helpers.h"
 
 #include <algorithm>
-#include <cinttypes>
 
 namespace esphome {
 
@@ -67,58 +66,123 @@ std::string ESPTime::strftime(const char *format) {
 
 std::string ESPTime::strftime(const std::string &format) { return this->strftime(format.c_str()); }
 
-bool ESPTime::strptime(const char *time_to_parse, size_t len, ESPTime &esp_time) {
-  uint16_t year;
-  uint8_t month;
-  uint8_t day;
-  uint8_t hour;
-  uint8_t minute;
-  uint8_t second;
-  int num;
-  const int ilen = static_cast<int>(len);
-
-  if (sscanf(time_to_parse, "%04hu-%02hhu-%02hhu %02hhu:%02hhu:%02hhu %n", &year, &month, &day,  // NOLINT
-             &hour,                                                                              // NOLINT
-             &minute,                                                                            // NOLINT
-             &second, &num) == 6 &&                                                              // NOLINT
-      num == ilen) {
-    esp_time.year = year;
-    esp_time.month = month;
-    esp_time.day_of_month = day;
-    esp_time.hour = hour;
-    esp_time.minute = minute;
-    esp_time.second = second;
-  } else if (sscanf(time_to_parse, "%04hu-%02hhu-%02hhu %02hhu:%02hhu %n", &year, &month, &day,  // NOLINT
-                    &hour,                                                                       // NOLINT
-                    &minute, &num) == 5 &&                                                       // NOLINT
-             num == ilen) {
-    esp_time.year = year;
-    esp_time.month = month;
-    esp_time.day_of_month = day;
-    esp_time.hour = hour;
-    esp_time.minute = minute;
-    esp_time.second = 0;
-  } else if (sscanf(time_to_parse, "%02hhu:%02hhu:%02hhu %n", &hour, &minute, &second, &num) == 3 &&  // NOLINT
-             num == ilen) {
-    esp_time.hour = hour;
-    esp_time.minute = minute;
-    esp_time.second = second;
-  } else if (sscanf(time_to_parse, "%02hhu:%02hhu %n", &hour, &minute, &num) == 2 &&  // NOLINT
-             num == ilen) {
-    esp_time.hour = hour;
-    esp_time.minute = minute;
-    esp_time.second = 0;
-  } else if (sscanf(time_to_parse, "%04hu-%02hhu-%02hhu %n", &year, &month, &day, &num) == 3 &&  // NOLINT
-             num == ilen) {
-    esp_time.year = year;
-    esp_time.month = month;
-    esp_time.day_of_month = day;
-  } else {
-    return false;
+// Helper to parse exactly N digits, returns false if not enough digits
+static bool parse_digits(const char *&p, const char *end, int count, uint16_t &value) {
+  value = 0;
+  for (int i = 0; i < count; i++) {
+    if (p >= end || *p < '0' || *p > '9')
+      return false;
+    value = value * 10 + (*p - '0');
+    p++;
   }
   return true;
 }
 
+// Helper to check for expected character
+static bool expect_char(const char *&p, const char *end, char expected) {
+  if (p >= end || *p != expected)
+    return false;
+  p++;
+  return true;
+}
+
+bool ESPTime::strptime(const char *time_to_parse, size_t len, ESPTime &esp_time) {
+  // Supported formats:
+  //   YYYY-MM-DD HH:MM:SS (19 chars)
+  //   YYYY-MM-DD HH:MM    (16 chars)
+  //   YYYY-MM-DD          (10 chars)
+  //   HH:MM:SS            (8 chars)
+  //   HH:MM               (5 chars)
+
+  if (time_to_parse == nullptr || len == 0)
+    return false;
+
+  const char *p = time_to_parse;
+  const char *end = time_to_parse + len;
+  uint16_t v1, v2, v3, v4, v5, v6;
+
+  // Try date formats first (start with 4-digit year)
+  if (len >= 10 && time_to_parse[4] == '-') {
+    // YYYY-MM-DD...
+    if (!parse_digits(p, end, 4, v1))
+      return false;
+    if (!expect_char(p, end, '-'))
+      return false;
+    if (!parse_digits(p, end, 2, v2))
+      return false;
+    if (!expect_char(p, end, '-'))
+      return false;
+    if (!parse_digits(p, end, 2, v3))
+      return false;
+
+    esp_time.year = v1;
+    esp_time.month = v2;
+    esp_time.day_of_month = v3;
+
+    if (p == end) {
+      // YYYY-MM-DD (date only)
+      return true;
+    }
+
+    if (!expect_char(p, end, ' '))
+      return false;
+
+    // Continue with time part: HH:MM[:SS]
+    if (!parse_digits(p, end, 2, v4))
+      return false;
+    if (!expect_char(p, end, ':'))
+      return false;
+    if (!parse_digits(p, end, 2, v5))
+      return false;
+
+    esp_time.hour = v4;
+    esp_time.minute = v5;
+
+    if (p == end) {
+      // YYYY-MM-DD HH:MM
+      esp_time.second = 0;
+      return true;
+    }
+
+    if (!expect_char(p, end, ':'))
+      return false;
+    if (!parse_digits(p, end, 2, v6))
+      return false;
+
+    esp_time.second = v6;
+    return p == end;  // YYYY-MM-DD HH:MM:SS
+  }
+
+  // Try time-only formats (HH:MM[:SS])
+  if (len >= 5 && time_to_parse[2] == ':') {
+    if (!parse_digits(p, end, 2, v1))
+      return false;
+    if (!expect_char(p, end, ':'))
+      return false;
+    if (!parse_digits(p, end, 2, v2))
+      return false;
+
+    esp_time.hour = v1;
+    esp_time.minute = v2;
+
+    if (p == end) {
+      // HH:MM
+      esp_time.second = 0;
+      return true;
+    }
+
+    if (!expect_char(p, end, ':'))
+      return false;
+    if (!parse_digits(p, end, 2, v3))
+      return false;
+
+    esp_time.second = v3;
+    return p == end;  // HH:MM:SS
+  }
+
+  return false;
+}
+
 void ESPTime::increment_second() {
   this->timestamp++;
   if (!increment_time_value(this->second, 0, 60))
@@ -193,27 +257,67 @@ void ESPTime::recalc_timestamp_utc(bool use_day_of_year) {
 }
 
 void ESPTime::recalc_timestamp_local() {
-  struct tm tm;
+#ifdef USE_TIME_TIMEZONE
+  // Calculate timestamp as if fields were UTC
+  this->recalc_timestamp_utc(false);
+  if (this->timestamp == -1) {
+    return;  // Invalid time
+  }
 
-  tm.tm_year = this->year - 1900;
-  tm.tm_mon = this->month - 1;
-  tm.tm_mday = this->day_of_month;
-  tm.tm_hour = this->hour;
-  tm.tm_min = this->minute;
-  tm.tm_sec = this->second;
-  tm.tm_isdst = -1;
+  // Now convert from local to UTC by adding the offset
+  // POSIX: local = utc - offset, so utc = local + offset
+  const auto &tz = time::get_global_tz();
 
-  this->timestamp = mktime(&tm);
+  if (!tz.has_dst()) {
+    // No DST - just apply standard offset
+    this->timestamp += tz.std_offset_seconds;
+    return;
+  }
+
+  // Try both interpretations to match libc mktime() with tm_isdst=-1
+  // For ambiguous times (fall-back repeated hour), prefer standard time
+  // For invalid times (spring-forward skipped hour), libc normalizes forward
+  time_t utc_if_dst = this->timestamp + tz.dst_offset_seconds;
+  time_t utc_if_std = this->timestamp + tz.std_offset_seconds;
+
+  bool dst_valid = time::is_in_dst(utc_if_dst, tz);
+  bool std_valid = !time::is_in_dst(utc_if_std, tz);
+
+  if (dst_valid && std_valid) {
+    // Ambiguous time (repeated hour during fall-back) - prefer standard time
+    this->timestamp = utc_if_std;
+  } else if (dst_valid) {
+    // Only DST interpretation is valid
+    this->timestamp = utc_if_dst;
+  } else if (std_valid) {
+    // Only standard interpretation is valid
+    this->timestamp = utc_if_std;
+  } else {
+    // Invalid time (skipped hour during spring-forward)
+    // libc normalizes forward: 02:30 CST -> 08:30 UTC -> 03:30 CDT
+    // Using std offset achieves this since the UTC result falls during DST
+    this->timestamp = utc_if_std;
+  }
+#else
+  // No timezone support - treat as UTC
+  this->recalc_timestamp_utc(false);
+#endif
 }
 
 int32_t ESPTime::timezone_offset() {
+#ifdef USE_TIME_TIMEZONE
   time_t now = ::time(nullptr);
-  struct tm local_tm = *::localtime(&now);
-  local_tm.tm_isdst = 0;  // Cause mktime to ignore daylight saving time because we want to include it in the offset.
-  time_t local_time = mktime(&local_tm);
-  struct tm utc_tm = *::gmtime(&now);
-  time_t utc_time = mktime(&utc_tm);
-  return static_cast<int32_t>(local_time - utc_time);
+  const auto &tz = time::get_global_tz();
+  // POSIX offset is positive west, but we return offset to add to UTC to get local
+  // So we negate the POSIX offset
+  if (time::is_in_dst(now, tz)) {
+    return -tz.dst_offset_seconds;
+  }
+  return -tz.std_offset_seconds;
+#else
+  // No timezone support - no offset
+  return 0;
+#endif
 }
 
 bool ESPTime::operator<(const ESPTime &other) const { return this->timestamp < other.timestamp; }

esphome/core/time.h

@@ -7,6 +7,10 @@
 #include <span>
 #include <string>
 
+#ifdef USE_TIME_TIMEZONE
+#include "esphome/components/time/posix_tz.h"
+#endif
+
 namespace esphome {
 
 template<typename T> bool increment_time_value(T &current, uint16_t begin, uint16_t end);
@@ -105,11 +109,17 @@ struct ESPTime {
    * @return The generated ESPTime
    */
   static ESPTime from_epoch_local(time_t epoch) {
-    struct tm *c_tm = ::localtime(&epoch);
-    if (c_tm == nullptr) {
-      return ESPTime{};  // Return an invalid ESPTime
+#ifdef USE_TIME_TIMEZONE
+    struct tm local_tm;
+    if (time::epoch_to_local_tm(epoch, time::get_global_tz(), &local_tm)) {
+      return ESPTime::from_c_tm(&local_tm, epoch);
     }
-    return ESPTime::from_c_tm(c_tm, epoch);
+    // Fallback to UTC if conversion failed
+    return ESPTime::from_epoch_utc(epoch);
+#else
+    // No timezone support - return UTC (no TZ configured, localtime would return UTC anyway)
+    return ESPTime::from_epoch_utc(epoch);
+#endif
   }
   /** Convert an UTC epoch timestamp to a UTC time ESPTime instance.
    *

platformio.ini

@@ -133,9 +133,9 @@ extra_scripts = post:esphome/components/esp8266/post_build.py.script
 ; This are common settings for the ESP32 (all variants) using Arduino.
 [common:esp32-arduino]
 extends = common:arduino
-platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.36/platform-espressif32.zip
+platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.37/platform-espressif32.zip
 platform_packages =
-    pioarduino/framework-arduinoespressif32@https://github.com/espressif/arduino-esp32/releases/download/3.3.6/esp32-core-3.3.6.tar.xz
+    pioarduino/framework-arduinoespressif32@https://github.com/espressif/arduino-esp32/releases/download/3.3.7/esp32-core-3.3.7.tar.xz
     pioarduino/framework-espidf@https://github.com/pioarduino/esp-idf/releases/download/v5.5.2/esp-idf-v5.5.2.tar.xz
 
 framework = arduino, espidf  ; Arduino as an ESP-IDF component
@@ -169,7 +169,7 @@ extra_scripts = post:esphome/components/esp32/post_build.py.script
 ; This are common settings for the ESP32 (all variants) using IDF.
 [common:esp32-idf]
 extends = common:idf
-platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.36/platform-espressif32.zip
+platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.37/platform-espressif32.zip
 platform_packages =
     pioarduino/framework-espidf@https://github.com/pioarduino/esp-idf/releases/download/v5.5.2/esp-idf-v5.5.2.tar.xz
 

pyproject.toml

@@ -20,8 +20,8 @@ classifiers = [
     "Topic :: Home Automation",
 ]
 
-# Python 3.14 is currently not supported by IDF <= 5.5.1, see https://github.com/esphome/esphome/issues/11502
-requires-python = ">=3.11.0,<3.14"
+# Python 3.14 is not supported on Windows, see https://github.com/zephyrproject-rtos/windows-curses/issues/76
+requires-python = ">=3.11.0,<3.15"
 
 dynamic = ["dependencies", "optional-dependencies", "version"]
 

script/cpp_unit_test.py

@@ -66,6 +66,7 @@ def create_test_config(config_name: str, includes: list[str]) -> dict:
                 ],
                 "build_flags": [
                     "-Og",  # optimize for debug
+                    "-DUSE_TIME_TIMEZONE",  # enable timezone code paths for testing
                 ],
                 "debug_build_flags": [  # only for debug builds
                     "-g3",  # max debug info

tests/components/serial_proxy/common.yaml

@@ -1,8 +0,0 @@
-wifi:
-  ssid: MySSID
-  password: password1
-
-api:
-
-serial_proxy:
-  - id: serial_proxy_1

tests/components/serial_proxy/test.esp32-idf.yaml

@@ -1,8 +0,0 @@
-substitutions:
-  tx_pin: GPIO4
-  rx_pin: GPIO5
-
-packages:
-  uart: !include ../../test_build_components/common/uart/esp32-idf.yaml
-
-<<: !include common.yaml

tests/components/serial_proxy/test.esp8266-ard.yaml

@@ -1,8 +0,0 @@
-substitutions:
-  tx_pin: GPIO0
-  rx_pin: GPIO2
-
-packages:
-  uart: !include ../../test_build_components/common/uart/esp8266-ard.yaml
-
-<<: !include common.yaml

tests/components/serial_proxy/test.rp2040-ard.yaml

@@ -1,8 +0,0 @@
-substitutions:
-  tx_pin: GPIO4
-  rx_pin: GPIO5
-
-packages:
-  uart: !include ../../test_build_components/common/uart/rp2040-ard.yaml
-
-<<: !include common.yaml