Docs: Added newest changelog: v0.12.0 (#12611)

docs/changelogs/index.md

@@ -3,6 +3,69 @@
 Wondering what's new in Gemini CLI? This document provides key highlights and
 notable changes to Gemini CLI.
 
+## v0.12.0 - Gemini CLI weekly update - 2025-10-27
+
+![Codebase investigator subagent in Gemini CLI.](https://i.imgur.com/4J1njsx.png)
+
+- **🎉 New partner extensions:**
+  - **🤗 Hugging Face extension:** Access the Hugging Face hub.
+    ([gif](https://drive.google.com/file/d/1LEzIuSH6_igFXq96_tWev11svBNyPJEB/view?usp=sharing&resourcekey=0-LtPTzR1woh-rxGtfPzjjfg))
+
+    `gemini extensions install https://github.com/huggingface/hf-mcp-server`
+
+  - **Monday.com extension**: Analyze your sprints, update your task boards,
+    etc.
+    ([gif](https://drive.google.com/file/d/1cO0g6kY1odiBIrZTaqu5ZakaGZaZgpQv/view?usp=sharing&resourcekey=0-xEr67SIjXmAXRe1PKy7Jlw))
+
+    `gemini extensions install https://github.com/mondaycom/mcp`
+
+  - **Data Commons extension:** Query public datasets or ground responses on
+    data from Data Commons
+    ([gif](https://drive.google.com/file/d/1cuj-B-vmUkeJnoBXrO_Y1CuqphYc6p-O/view?usp=sharing&resourcekey=0-0adXCXDQEd91ZZW63HbW-Q)).
+
+    `gemini extensions install https://github.com/gemini-cli-extensions/datacommons`
+
+- **Model selection:** Choose the Gemini model for your session with `/model`.
+  ([pic](https://imgur.com/a/ABFcWWw),
+  [pr](https://github.com/google-gemini/gemini-cli/pull/8940) by
+  [@abhipatel12](https://github.com/abhipatel12)).
+- **Model routing:** Gemini CLI will now intelligently pick the best model for
+  the task. Simple queries will be sent to Flash while complex analytical or
+  creative tasks will still use the power of Pro. This ensures your quota will
+  last for a longer period of time. You can always opt-out of this via `/model`.
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/9262) by
+  [@abhipatel12](https://github.com/abhipatel12)).
+  - Discussion:
+    [https://github.com/google-gemini/gemini-cli/discussions/12375](https://github.com/google-gemini/gemini-cli/discussions/12375)
+- **Codebase investigator subagent:** We now have a new built-in subagent that
+  will explore your workspace and resolve relevant information to improve
+  overall performance.
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/9988) by
+  [@abhipatel12](https://github.com/abhipatel12),
+  [pr](https://github.com/google-gemini/gemini-cli/pull/10282) by
+  [@silviojr](https://github.com/silviojr)).
+  - Enable, disable, or limit turns in `/settings`, plus advanced configs in
+    `settings.json` ([pic](https://imgur.com/a/yJiggNO),
+    [pr](https://github.com/google-gemini/gemini-cli/pull/10844) by
+    [@silviojr](https://github.com/silviojr)).
+- **Explore extensions with `/extension`:** Users can now open the extensions
+  page in their default browser directly from the CLI using the `/extension`
+  explore command. ([pr](https://github.com/google-gemini/gemini-cli/pull/11846)
+  by [@JayadityaGit](https://github.com/JayadityaGit)).
+- **Configurable compression:** Users can modify the compression threshold in
+  `/settings`. The default has been made more proactive
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/12317) by
+  [@scidomino](https://github.com/scidomino)).
+- **API key authentication:** Users can now securely enter and store their
+  Gemini API key via a new dialog, eliminating the need for environment
+  variables and repeated entry.
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/11760) by
+  [@galz10](https://github.com/galz10)).
+- **Sequential approval:** Users can now approve multiple tool calls
+  sequentially during execution.
+  ([pr](https://github.com/google-gemini/gemini-cli/pull/11593) by
+  [@joshualitt](https://github.com/joshualitt)).
+
 ## v0.11.0 - Gemini CLI weekly update - 2025-10-20
 
 ![Gemini CLI and Jules](https://storage.googleapis.com/gweb-developer-goog-blog-assets/images/Jules_Extension_-_Blog_Header_O346JNt.original.png)