Docs: Add changelog for v.0.15.0 (#13276)

docs/changelogs/index.md

@@ -3,6 +3,52 @@
 Wondering what's new in Gemini CLI? This document provides key highlights and
 notable changes to Gemini CLI.
 
+## v0.15.0 - Gemini CLI weekly update - 2025-11-03
+
+- **🎉 Seamless scrollable UI & mouse support:** We’ve given Gemini CLI a major
+  facelift to make your terminal experience smoother and much more polished. You
+  now get a flicker-free display with sticky headers that keep important context
+  visible and a stable input prompt that doesn't jump around. We even added
+  mouse support so you can click right where you need to type!
+  ([gif](https://imgur.com/a/O6qc7bx),
+  [@jacob314](https://github.com/jacob314)).
+  - **Announcement:**
+    [https://developers.googleblog.com/en/making-the-terminal-beautiful-one-pixel-at-a-time/](https://developers.googleblog.com/en/making-the-terminal-beautiful-one-pixel-at-a-time/)
+- **🎉 New partner extensions:**
+  - **Arize:** Seamlessly instrument AI applications with Arize AX and grant
+    direct access to Arize support:
+
+    `gemini extensions install https://github.com/Arize-ai/arize-tracing-assistant`
+
+  - **Chronosphere:** Retrieve logs, metrics, traces, events, and specific
+    entities:
+
+    `gemini extensions install https://github.com/chronosphereio/chronosphere-mcp`
+
+  - **Transmit:** Comprehensive context, validation, and automated fixes for
+    creating production-ready authentication and identity workflows:
+
+    `gemini extensions install https://github.com/TransmitSecurity/transmit-security-journey-builder`
+
+- **Todo planning:** Complex questions now get broken down into todo lists that
+  the model can manage and check off. ([gif](https://imgur.com/a/EGDfNlZ),
+  [pr](https://github.com/google-gemini/gemini-cli/pull/12905) by
+  [@anj-s](https://github.com/anj-s))
+- **Disable GitHub extensions:** Users can now prevent the installation and
+  loading of extensions from GitHub.
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/12838) by
+  [@kevinjwang1](https://github.com/kevinjwang1)).
+- **Extensions restart:** Users can now explicitly restart extensions using the
+  `/extensions restart` command.
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/12739) by
+  [@jakemac53](https://github.com/jakemac53)).
+- **Better Angular support:** Angular workflows should now be more seamless
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/10252) by
+  [@MarkTechson](https://github.com/MarkTechson)).
+- **Validate command:** Users can now check that local extensions are formatted
+  correctly. ([pr](https://github.com/google-gemini/gemini-cli/pull/12186) by
+  [@kevinjwang1](https://github.com/kevinjwang1)).
+
 ## v0.12.0 - Gemini CLI weekly update - 2025-10-27
 
 ![Codebase investigator subagent in Gemini CLI.](https://i.imgur.com/4J1njsx.png)