diff --git a/changelog/3714.changed.md b/changelog/3714.changed.md
new file mode 100644
index 000000000..a3081a7c8
--- /dev/null
+++ b/changelog/3714.changed.md
@@ -0,0 +1 @@
+- ⚠️ Refactored service settings to use strongly-typed dataclasses (`TTSSettings`, `STTSettings`, `LLMSettings`, and service-specific subclasses) instead of plain dicts. Each service now exposes a `_settings` attribute with discoverable, typed fields. Dict-based `*UpdateSettingsFrame(settings={...})` is deprecated in favor of passing typed settings delta objects. For service maintainers, see changes in COMMUNITY_INTEGRATIONS.md.
diff --git a/changelog/3714.deprecated.md b/changelog/3714.deprecated.md
new file mode 100644
index 000000000..ee71b2070
--- /dev/null
+++ b/changelog/3714.deprecated.md
@@ -0,0 +1 @@
+- Deprecated `set_model()`, `set_voice()`, and `set_language()` on AI services in favor of runtime updates via `TTSUpdateSettingsFrame`, `STTUpdateSettingsFrame`, and `LLMUpdateSettingsFrame`.