Merge pull request #13632 from esphome/bump-2026.1.3

2026.1.3

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         = 2026.1.2
+PROJECT_NUMBER         = 2026.1.3
 
 # 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/http_request/http_request_arduino.cpp

@@ -131,6 +131,10 @@ std::shared_ptr<HttpContainer> HttpRequestArduino::perform(const std::string &ur
     }
   }
 
+  // HTTPClient::getSize() returns -1 for chunked transfer encoding (no Content-Length).
+  // When cast to size_t, -1 becomes SIZE_MAX (4294967295 on 32-bit).
+  // The read() method handles this: bytes_read_ can never reach SIZE_MAX, so the
+  // early return check (bytes_read_ >= content_length) will never trigger.
   int content_length = container->client_.getSize();
   ESP_LOGD(TAG, "Content-Length: %d", content_length);
   container->content_length = (size_t) content_length;
@@ -167,17 +171,23 @@ int HttpContainerArduino::read(uint8_t *buf, size_t max_len) {
   }
 
   int available_data = stream_ptr->available();
-  int bufsize = std::min(max_len, std::min(this->content_length - this->bytes_read_, (size_t) available_data));
+  // For chunked transfer encoding, HTTPClient::getSize() returns -1, which becomes SIZE_MAX when
+  // cast to size_t. SIZE_MAX - bytes_read_ is still huge, so it won't limit the read.
+  size_t remaining = (this->content_length > 0) ? (this->content_length - this->bytes_read_) : max_len;
+  int bufsize = std::min(max_len, std::min(remaining, (size_t) available_data));
 
   if (bufsize == 0) {
     this->duration_ms += (millis() - start);
-    // Check if we've read all expected content
-    if (this->bytes_read_ >= this->content_length) {
+    // Check if we've read all expected content (only valid when content_length is known and not SIZE_MAX)
+    // For chunked encoding (content_length == SIZE_MAX), we can't use this check
+    if (this->content_length > 0 && this->bytes_read_ >= this->content_length) {
       return 0;  // All content read successfully
     }
     // No data available - check if connection is still open
+    // For chunked encoding, !connected() after reading means EOF (all chunks received)
+    // For known content_length with bytes_read_ < content_length, it means connection dropped
     if (!stream_ptr->connected()) {
-      return HTTP_ERROR_CONNECTION_CLOSED;  // Connection closed prematurely
+      return HTTP_ERROR_CONNECTION_CLOSED;  // Connection closed or EOF for chunked
     }
     return 0;  // No data yet, caller should retry
   }

esphome/components/http_request/http_request_idf.cpp

@@ -152,6 +152,8 @@ std::shared_ptr<HttpContainer> HttpRequestIDF::perform(const std::string &url, c
   }
 
   container->feed_wdt();
+  // esp_http_client_fetch_headers() returns 0 for chunked transfer encoding (no Content-Length header).
+  // The read() method handles content_length == 0 specially to support chunked responses.
   container->content_length = esp_http_client_fetch_headers(client);
   container->feed_wdt();
   container->status_code = esp_http_client_get_status_code(client);
@@ -220,14 +222,22 @@ std::shared_ptr<HttpContainer> HttpRequestIDF::perform(const std::string &url, c
 //
 // We normalize to HttpContainer::read() contract:
 //   > 0: bytes read
-//   0: no data yet / all content read (caller should check bytes_read vs content_length)
+//   0: all content read (only returned when content_length is known and fully read)
 //   < 0: error/connection closed
+//
+// Note on chunked transfer encoding:
+//   esp_http_client_fetch_headers() returns 0 for chunked responses (no Content-Length header).
+//   We handle this by skipping the content_length check when content_length is 0,
+//   allowing esp_http_client_read() to handle chunked decoding internally and signal EOF
+//   by returning 0.
 int HttpContainerIDF::read(uint8_t *buf, size_t max_len) {
   const uint32_t start = millis();
   watchdog::WatchdogManager wdm(this->parent_->get_watchdog_timeout());
 
   // Check if we've already read all expected content
-  if (this->bytes_read_ >= this->content_length) {
+  // Skip this check when content_length is 0 (chunked transfer encoding or unknown length)
+  // For chunked responses, esp_http_client_read() will return 0 when all data is received
+  if (this->content_length > 0 && this->bytes_read_ >= this->content_length) {
     return 0;  // All content read successfully
   }
 
@@ -242,7 +252,13 @@ int HttpContainerIDF::read(uint8_t *buf, size_t max_len) {
     return read_len_or_error;
   }
 
-  // Connection closed by server before all content received
+  // esp_http_client_read() returns 0 in two cases:
+  // 1. Known content_length: connection closed before all data received (error)
+  // 2. Chunked encoding (content_length == 0): end of stream reached (EOF)
+  // For case 1, returning HTTP_ERROR_CONNECTION_CLOSED is correct.
+  // For case 2, 0 indicates that all chunked data has already been delivered
+  // in previous successful read() calls, so treating this as a closed
+  // connection does not cause any loss of response data.
   if (read_len_or_error == 0) {
     return HTTP_ERROR_CONNECTION_CLOSED;
   }

esphome/components/ld2450/ld2450.cpp

@@ -451,7 +451,7 @@ void LD2450Component::handle_periodic_data_() {
   int16_t ty = 0;
   int16_t td = 0;
   int16_t ts = 0;
-  int16_t angle = 0;
+  float angle = 0;
   uint8_t index = 0;
   Direction direction{DIRECTION_UNDEFINED};
   bool is_moving = false;

esphome/components/ld2450/sensor.py

@@ -143,6 +143,7 @@ CONFIG_SCHEMA = CONFIG_SCHEMA.extend(
                     ],
                     icon=ICON_FORMAT_TEXT_ROTATION_ANGLE_UP,
                     unit_of_measurement=UNIT_DEGREES,
+                    accuracy_decimals=1,
                 ),
                 cv.Optional(CONF_DISTANCE): sensor.sensor_schema(
                     device_class=DEVICE_CLASS_DISTANCE,

esphome/components/mhz19/mhz19.cpp

@@ -155,6 +155,9 @@ void MHZ19Component::dump_config() {
     case MHZ19_DETECTION_RANGE_0_10000PPM:
       range_str = "0 to 10000ppm";
       break;
+    default:
+      range_str = "default";
+      break;
   }
   ESP_LOGCONFIG(TAG, "  Detection range: %s", range_str);
 }

esphome/components/socket/lwip_raw_tcp_impl.cpp

@@ -29,6 +29,14 @@ void socket_delay(uint32_t ms) {
   // Use esp_delay with a callback that checks if socket data arrived.
   // This allows the delay to exit early when socket_wake() is called by
   // lwip recv_fn/accept_fn callbacks, reducing socket latency.
+  //
+  // When ms is 0, we must use delay(0) because esp_delay(0, callback)
+  // exits immediately without yielding, which can cause watchdog timeouts
+  // when the main loop runs in high-frequency mode (e.g., during light effects).
+  if (ms == 0) {
+    delay(0);
+    return;
+  }
   s_socket_woke = false;
   esp_delay(ms, []() { return !s_socket_woke; });
 }

esphome/components/web_server/web_server.cpp

@@ -527,7 +527,19 @@ static void set_json_id(JsonObject &root, EntityBase *obj, const char *prefix, J
   memcpy(p, name.c_str(), name_len);
   p[name_len] = '\0';
 
-  root[ESPHOME_F("id")] = id_buf;
+  // name_id: new format {prefix}/{device?}/{name} - frontend should prefer this
+  // Remove in 2026.8.0 when id switches to new format permanently
+  root[ESPHOME_F("name_id")] = id_buf;
+
+  // id: old format {prefix}-{object_id} for backward compatibility
+  // Will switch to new format in 2026.8.0
+  char legacy_buf[ESPHOME_DOMAIN_MAX_LEN + 1 + OBJECT_ID_MAX_LEN];
+  char *lp = legacy_buf;
+  memcpy(lp, prefix, prefix_len);
+  lp += prefix_len;
+  *lp++ = '-';
+  obj->write_object_id_to(lp, sizeof(legacy_buf) - (lp - legacy_buf));
+  root[ESPHOME_F("id")] = legacy_buf;
 
   if (start_config == DETAIL_ALL) {
     root[ESPHOME_F("domain")] = prefix;

esphome/components/wifi/wifi_component_esp8266.cpp

@@ -756,7 +756,10 @@ void WiFiComponent::wifi_scan_done_callback_(void *arg, STATUS status) {
 
   if (status != OK) {
     ESP_LOGV(TAG, "Scan failed: %d", status);
-    this->retry_connect();
+    // Don't call retry_connect() here - this callback runs in SDK system context
+    // where yield() cannot be called. Instead, just set scan_done_ and let
+    // check_scanning_finished() handle the empty scan_result_ from loop context.
+    this->scan_done_ = true;
     return;
   }
 

esphome/const.py

@@ -4,7 +4,7 @@ from enum import Enum
 
 from esphome.enum import StrEnum
 
-__version__ = "2026.1.2"
+__version__ = "2026.1.3"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (

esphome/espota2.py

@@ -154,6 +154,12 @@ def check_error(data: list[int] | bytes, expect: int | list[int] | None) -> None
     """
     if not expect:
         return
+    if not data:
+        raise OTAError(
+            "Error: Device closed connection without responding. "
+            "This may indicate the device ran out of memory, "
+            "a network issue, or the connection was interrupted."
+        )
     dat = data[0]
     if dat == RESPONSE_ERROR_MAGIC:
         raise OTAError("Error: Invalid magic byte")

tests/unit_tests/test_espota2.py

@@ -192,6 +192,20 @@ def test_check_error_unexpected_response() -> None:
         espota2.check_error([0x7F], [espota2.RESPONSE_OK, espota2.RESPONSE_AUTH_OK])
 
 
+def test_check_error_empty_data() -> None:
+    """Test check_error raises error when device closes connection without responding."""
+    with pytest.raises(
+        espota2.OTAError, match="Device closed connection without responding"
+    ):
+        espota2.check_error([], [espota2.RESPONSE_OK])
+
+    # Also test with empty bytes
+    with pytest.raises(
+        espota2.OTAError, match="Device closed connection without responding"
+    ):
+        espota2.check_error(b"", [espota2.RESPONSE_OK])
+
+
 def test_send_check_with_various_data_types(mock_socket: Mock) -> None:
     """Test send_check handles different data types."""