Changelogs for 0.27.0 and 0.28.0-preview0 (#18336)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

docs/changelogs/index.md

@@ -18,6 +18,22 @@ on GitHub.
 | [Preview](preview.md) | Experimental features ready for early feedback. |
 | [Stable](latest.md)   | Stable, recommended for general use.            |
 
+## Announcements: v0.27.0 - 2026-02-03
+
+- **Event-Driven Architecture:** The CLI now uses a new event-driven scheduler
+  for tool execution, resulting in a more responsive and performant experience
+  ([#17078](https://github.com/google-gemini/gemini-cli/pull/17078) by
+  @abhipatel12).
+- **Enhanced User Experience:** This release includes queued tool confirmations,
+  and expandable large text pastes for a smoother workflow.
+- **New `/rewind` Command:** Easily navigate your session history with the new
+  `/rewind` command
+  ([#15720](https://github.com/google-gemini/gemini-cli/pull/15720) by
+  @Adib234).
+- **Linux Clipboard Support:** You can now paste images on Linux with Wayland
+  and X11 ([#17144](https://github.com/google-gemini/gemini-cli/pull/17144) by
+  @devr0306).
+
 ## Announcements: v0.26.0 - 2026-01-27
 
 - **Agents and Skills:** We've introduced a new `skill-creator` skill