chore(main): release 0.4.0

[a2a-bot]

🤖 I have created a release beep boop

0.4.0 (2025-11-20)

Features

• spec: Add tasks/list method with filtering and pagination to the specification (#831) (0a9f629)

Bug Fixes

• Add missing metadata field to Part message in gRPC specification (#1019) (b3b266d), closes #1005
• Add name field to FilePart protobuf message (#983) (2b7cb6f), closes #984
• grpc: Fix inconsistent property name between gRPC and JSON-RPC in Message object (#1100) (2a1f819)
• grpc: missing field in gRPC spec - state_transition_history (#1138) (a2de798), closes #1139
• grpc: Update CreateTaskPushNotificationConfig endpoint to /v1/{parent=tasks/*/pushNotificationConfigs} (#979) (911f9b0)
• proto: Add icon_url to a2a.proto (#986) (17e7f62)
• proto: Adds metadata field to A2A DataPart proto (#1004) (a8b45dc)
• Revert "chore(gRPC): Update a2a.proto to include metadata on GetTaskRequest" (#1000) (e6b8c65)
• spec: Suggest Unique Identifier fields to be UUID (#966) (00cf76e)
• Update the Java tutorials and descriptions (#1181) (202aa06)

---

This PR was generated with Release Please. See documentation.

[gemini-code-assist]

Summary of Changes

Hello @a2a-bot, 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 represents an automated release for version 0.3.1, primarily focused on incorporating a minor bug fix. The changes include updating the changelog to document the new version and the specific typo correction.

Highlights

• Release Automation: This PR is an automated release generated by Release Please for version 0.3.1.
• Bug Fix: It includes a fix for a typo, changing "forseeable" to "foreseeable", as documented in issue #971.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in issue comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This is an automated release pull request for version 0.3.1. The changes update the CHANGELOG.md to reflect the new release, including a bug fix. The formatting of the new entry is consistent with the rest of the file. The changes look correct.

[darrelmiller]

@holtskinner Would you be ok if we put these issues in the 0.4.0 release?

[darrelmiller]

These changes have now been merged in #1160