diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index 6c0ec050..e757877f 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -6,11 +6,14 @@
 
 - `ctx.ui.custom()` factory signature changed from `(tui, theme, done)` to `(tui, theme, keybindings, done)` for keybinding access in custom components
 - `LoadedExtension` type renamed to `Extension`
+- `LoadExtensionsResult.setUIContext()` removed, replaced with `runtime: ExtensionRuntime`
+- `ExtensionRunner` constructor now requires `runtime: ExtensionRuntime` as second parameter
+- `ExtensionRunner.initialize()` signature changed from options object to positional params `(actions, contextActions, commandContextActions?, uiContext?)`
+- `ExtensionRunner.getHasUI()` renamed to `hasUI()`
 
 ### Added
 
 - SDK: `InteractiveMode`, `runPrintMode()`, `runRpcMode()` exported for building custom run modes. See `docs/sdk.md`.
-
 - `PI_SKIP_VERSION_CHECK` environment variable to disable new version notifications at startup ([#549](https://github.com/badlogic/pi-mono/pull/549) by [@aos](https://github.com/aos))
 - Extension UI dialogs (`ctx.ui.select()`, `ctx.ui.confirm()`, `ctx.ui.input()`) now support a `timeout` option with live countdown display ([#522](https://github.com/badlogic/pi-mono/pull/522) by [@nicobailon](https://github.com/nicobailon))
 - Extensions can now provide custom editor components via `ctx.ui.setEditorComponent()`. See `examples/extensions/modal-editor.ts` and `docs/tui.md` Pattern 7.