Update CHANGES.md to document a memory growth issue.

[tvalentyn]

No description provided.

[tvalentyn]

R: @damccorm

[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 updates the project's documentation to ensure users are aware of a memory leak issue affecting long-running Python pipelines. By adding this information to the 'Known Issues' sections across multiple release versions in CHANGES.md, the PR helps maintain transparency regarding potential stability risks for users running long-duration jobs.

Highlights

• Documentation Update: Updated CHANGES.md to include a known issue regarding memory growth and OOMs in long-running Python pipelines (issue [Bug]: Memory leak in Apache Beam Python SDK 2.67.0 - 2.75.0 #39406).
• Bug Documentation: Added a formal entry for the Python SDK memory leak caused by exception caching to the project's change log.

New Features

🧠 You can now enable Memory (public preview) to help Gemini Code Assist learn from your team's feedback. This makes future code reviews more consistent and personalized to your project's style. Click here to enable Memory in your admin console.

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 by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

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 pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize the 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 counterproductive. 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.

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. ↩

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control. If you'd like to restart, comment assign set of reviewers

[gemini-code-assist]

Code Review

This pull request updates CHANGES.md to document a memory leak fix in the Python SDK and adds a "Known Issues" entry across multiple historical releases warning about potential memory growth and periodic OOMs in long-running Python pipelines. The reviewer suggested formatting the issue link in the "Known Issues" sections with parentheses instead of a colon to maintain consistency with existing entries.

Important

The consumer version of Gemini Code Assist on GitHub is being sunset. Starting June 18, 2026, new organization installations will be blocked, and all code review activity will officially cease on July 17, 2026.
For more details on the timeline and next steps, please review the Help Documentation.