From 67856ba565e511d4a3eccd3320f36427787d7551 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Wed, 25 Feb 2026 12:07:01 -0700
Subject: [PATCH] [mdns] Mark MDNSComponent as final

MDNSComponent is never subclassed. Marking it final enables the
compiler to devirtualize calls to the Component overrides (setup,
dump_config, get_setup_priority, on_shutdown).
---
 esphome/components/mdns/mdns_component.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/mdns/mdns_component.h b/esphome/components/mdns/mdns_component.h
index 32f8f16ec1..13c8ccf288 100644
--- a/esphome/components/mdns/mdns_component.h
+++ b/esphome/components/mdns/mdns_component.h
@@ -40,7 +40,7 @@ struct MDNSService {
   FixedVector<MDNSTXTRecord> txt_records;
 };
 
-class MDNSComponent : public Component {
+class MDNSComponent final : public Component {
  public:
   void setup() override;
   void dump_config() override;