Add June 4 changelog entry

changelog.mdx

@@ -9,6 +9,25 @@ import { YouTubeVideo } from '/snippets/youtube-video.mdx';
 For API library updates, see the [Node SDK](https://github.com/onkernel/kernel-node-sdk/blob/main/CHANGELOG.md), [Python SDK](https://github.com/onkernel/kernel-python-sdk/blob/next/CHANGELOG.md), and [Go SDK](https://github.com/onkernel/kernel-go-sdk/blob/main/CHANGELOG.md) changelogs.
 </Note>
 
+<Update label="June 5" tags={["Product", "Docs"]}>
+## Product updates
+
+- Browser sessions now play audio by default, and the browser replay recording API gained a `record_audio` option to capture that audio in replay videos.
+- Extended browser telemetry to the [CLI](https://github.com/kernel/cli): use `--telemetry=all|off|<list>` on `browsers create` and `browsers update` to configure telemetry per session, and `kernel browsers telemetry stream <id>` to tail live events with category and type filters and SSE resume support.
+- Added API key management commands to the [CLI](https://github.com/kernel/cli) for creating, listing, retrieving, updating, and deleting org API keys directly from the terminal.
+- Expanded the [MCP server](https://www.kernel.sh/docs/reference/mcp-server) from 10 to 16 tools, adding managed auth (`manage_auth_connections`, `manage_credentials`, `manage_credential_providers`), `browser_curl` for HTTP(S) through a live browser, API key management, and project management. MCP-created browser sessions also now accept the same configuration as the API.
+- Browser sessions can now be given a custom name at create time, making them easier to identify in the dashboard and audit logs.
+- Improved `kernel status` to distinguish between the API being down versus unreachable.
+
+## Documentation updates
+
+- Reorganized the [MCP server](/reference/mcp-server) documentation into per-page navigation for easier browsing.
+- Expanded and regrouped the [CLI reference](/reference/cli) to match the MCP docs structure.
+- Added Go SDK code examples across the docs.
+- Added a [managed auth CLI reference](/reference/cli/auth) page.
+- Clarified that ISP proxies provide a static IP across sessions.
+</Update>
+
 <Update label="May 28" tags={["Product", "Docs"]}>
 ## Product updates