From cced0a82b55d17ae402425c86dfd9654ed4f7d86 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 25 Feb 2026 20:14:04 -0700
Subject: [PATCH] [ota] Mark OTA backend and component leaf classes as final
 (#14287)

---
 esphome/components/esphome/ota/ota_esphome.h           | 2 +-
 esphome/components/http_request/ota/ota_http_request.h | 2 +-
 esphome/components/ota/ota_backend_arduino_libretiny.h | 2 +-
 esphome/components/ota/ota_backend_arduino_rp2040.h    | 2 +-
 esphome/components/ota/ota_backend_esp8266.h           | 2 +-
 esphome/components/ota/ota_backend_esp_idf.h           | 2 +-
 esphome/components/ota/ota_backend_host.h              | 2 +-
 esphome/components/web_server/ota/ota_web_server.h     | 2 +-
 8 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/esphome/components/esphome/ota/ota_esphome.h b/esphome/components/esphome/ota/ota_esphome.h
index c9e89c82ba..53715cfe6a 100644
--- a/esphome/components/esphome/ota/ota_esphome.h
+++ b/esphome/components/esphome/ota/ota_esphome.h
@@ -12,7 +12,7 @@
 namespace esphome {
 
 /// ESPHomeOTAComponent provides a simple way to integrate Over-the-Air updates into your app using ArduinoOTA.
-class ESPHomeOTAComponent : public ota::OTAComponent {
+class ESPHomeOTAComponent final : public ota::OTAComponent {
  public:
   enum class OTAState : uint8_t {
     IDLE,
diff --git a/esphome/components/http_request/ota/ota_http_request.h b/esphome/components/http_request/ota/ota_http_request.h
index e3f1a4aa90..6d39b0d466 100644
--- a/esphome/components/http_request/ota/ota_http_request.h
+++ b/esphome/components/http_request/ota/ota_http_request.h
@@ -22,7 +22,7 @@ enum OtaHttpRequestError : uint8_t {
   OTA_CONNECTION_ERROR = 0x12,
 };
 
-class OtaHttpRequestComponent : public ota::OTAComponent, public Parented<HttpRequestComponent> {
+class OtaHttpRequestComponent final : public ota::OTAComponent, public Parented<HttpRequestComponent> {
  public:
   void dump_config() override;
   float get_setup_priority() const override { return setup_priority::AFTER_WIFI; }
diff --git a/esphome/components/ota/ota_backend_arduino_libretiny.h b/esphome/components/ota/ota_backend_arduino_libretiny.h
index 6d9b7a96d5..8f9d268eec 100644
--- a/esphome/components/ota/ota_backend_arduino_libretiny.h
+++ b/esphome/components/ota/ota_backend_arduino_libretiny.h
@@ -7,7 +7,7 @@
 namespace esphome {
 namespace ota {
 
-class ArduinoLibreTinyOTABackend : public OTABackend {
+class ArduinoLibreTinyOTABackend final : public OTABackend {
  public:
   OTAResponseTypes begin(size_t image_size) override;
   void set_update_md5(const char *md5) override;
diff --git a/esphome/components/ota/ota_backend_arduino_rp2040.h b/esphome/components/ota/ota_backend_arduino_rp2040.h
index b9e10d506c..6a708f9c57 100644
--- a/esphome/components/ota/ota_backend_arduino_rp2040.h
+++ b/esphome/components/ota/ota_backend_arduino_rp2040.h
@@ -9,7 +9,7 @@
 namespace esphome {
 namespace ota {
 
-class ArduinoRP2040OTABackend : public OTABackend {
+class ArduinoRP2040OTABackend final : public OTABackend {
  public:
   OTAResponseTypes begin(size_t image_size) override;
   void set_update_md5(const char *md5) override;
diff --git a/esphome/components/ota/ota_backend_esp8266.h b/esphome/components/ota/ota_backend_esp8266.h
index a9d6dd2ccc..52f657f006 100644
--- a/esphome/components/ota/ota_backend_esp8266.h
+++ b/esphome/components/ota/ota_backend_esp8266.h
@@ -12,7 +12,7 @@ namespace esphome::ota {
 /// OTA backend for ESP8266 using native SDK functions.
 /// This implementation bypasses the Arduino Updater library to save ~228 bytes of RAM
 /// by not having a global Update object in .bss.
-class ESP8266OTABackend : public OTABackend {
+class ESP8266OTABackend final : public OTABackend {
  public:
   OTAResponseTypes begin(size_t image_size) override;
   void set_update_md5(const char *md5) override;
diff --git a/esphome/components/ota/ota_backend_esp_idf.h b/esphome/components/ota/ota_backend_esp_idf.h
index 764010e614..7f7f6115c5 100644
--- a/esphome/components/ota/ota_backend_esp_idf.h
+++ b/esphome/components/ota/ota_backend_esp_idf.h
@@ -10,7 +10,7 @@
 namespace esphome {
 namespace ota {
 
-class IDFOTABackend : public OTABackend {
+class IDFOTABackend final : public OTABackend {
  public:
   OTAResponseTypes begin(size_t image_size) override;
   void set_update_md5(const char *md5) override;
diff --git a/esphome/components/ota/ota_backend_host.h b/esphome/components/ota/ota_backend_host.h
index ae7d0cb0b3..5a2dcfcf39 100644
--- a/esphome/components/ota/ota_backend_host.h
+++ b/esphome/components/ota/ota_backend_host.h
@@ -7,7 +7,7 @@ namespace esphome::ota {
 /// Stub OTA backend for host platform - allows compilation but does not implement OTA.
 /// All operations return error codes immediately. This enables configurations with
 /// OTA triggers to compile for host platform during development.
-class HostOTABackend : public OTABackend {
+class HostOTABackend final : public OTABackend {
  public:
   OTAResponseTypes begin(size_t image_size) override;
   void set_update_md5(const char *md5) override;
diff --git a/esphome/components/web_server/ota/ota_web_server.h b/esphome/components/web_server/ota/ota_web_server.h
index 53ff99899c..0857c31c5d 100644
--- a/esphome/components/web_server/ota/ota_web_server.h
+++ b/esphome/components/web_server/ota/ota_web_server.h
@@ -9,7 +9,7 @@
 
 namespace esphome::web_server {
 
-class WebServerOTAComponent : public ota::OTAComponent {
+class WebServerOTAComponent final : public ota::OTAComponent {
  public:
   void setup() override;
   void dump_config() override;