Changelog for v0.45.0-preview.0

[gemini-cli-robot]

This PR contains the auto-generated changelog for the v0.45.0-preview.0 release.

Please review and merge.

Related to #18505

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request provides the auto-generated changelog for the v0.45.0-preview.0 release. It summarizes the key architectural improvements, feature enhancements, and bug fixes included in this version.

Highlights

• Context Simplification: Completed major architectural work to simplify and optimize how the agent manages and processes session context.
• A2A Usage Metadata: The Agent-to-Agent (A2A) interface now exposes detailed usage metadata for better resource consumption visibility.
• Improved Routing: Updated default auto-routing logic and added bypasses for certain routing classifiers to prevent orphaned function response errors.
• Terminal Stability: Fixed several issues affecting terminal environments, including Termux relaunch loops and PTY resize errors.
• Security & Fixes: Strengthened MCP list security and addressed issues with session resumption and PTY environment signals.

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[gemini-code-assist]

Code Review

This pull request updates the preview release changelog in docs/changelogs/preview.md from version v0.44.0-preview.0 to v0.45.0-preview.0. It details new highlights such as context simplification, A2A usage metadata, improved routing, terminal stability, and security fixes, alongside the corresponding list of merged pull requests. There are no review comments, and I have no additional feedback to provide.

_{Note: Security Review has been skipped due to the limited scope of the PR.}

[github-actions]

Size Change: -4 B (0%)

Total Size: 33.9 MB

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