Add changelog for v0.1.32

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]

CHANGELOG.md

@@ -5,6 +5,26 @@ All notable changes to the Copilot SDK are documented in this file.
 This changelog is automatically generated by an AI agent when stable releases are published.
 See [GitHub Releases](https://github.com/github/copilot-sdk/releases) for the full list.
 
+## [v0.1.32](https://github.com/github/copilot-sdk/releases/tag/v0.1.32) (2026-03-07)
+
+### Feature: backward compatibility with v2 CLI servers
+
+SDK applications written against the v3 API now also work when connected to a v2 CLI server, with no code changes required. The SDK detects the server's protocol version and automatically adapts v2 `tool.call` and `permission.request` messages into the same user-facing handlers used by v3. ([#706](https://github.com/github/copilot-sdk/pull/706))
+
+```ts
+const session = await client.createSession({
+  tools: [myTool],           // unchanged — works with v2 and v3 servers
+  onPermissionRequest: approveAll,
+});
+```
+
+```cs
+var session = await client.CreateSessionAsync(new SessionConfig {
+    Tools = [myTool],          // unchanged — works with v2 and v3 servers
+    OnPermissionRequest = approveAll,
+});
+```
+
 ## [v0.1.30](https://github.com/github/copilot-sdk/releases/tag/v0.1.30) (2026-03-03)
 
 ### Feature: support overriding built-in tools