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AI Assist Changelog

This article provides details about recent changes to AI Assist.

February 26, 2026

Redesigned Stack Overflow (beta)

Stack Overflow is undergoing a redesign as we shift over to our new brand image and future vision. Head over to beta.stackoverflow.com to try out AI Assist in the new design and share feedback or report bugs as we build. Read more about the beta here.

Notable changes

  • Responses
    • Responses are faster and more accurate due to switching over to an agentic RAG infrastructure.
    • Source cards moved to the bottom of responses to prioritize the answer.
  • UX improvements
    • You can now pin, rename, and delete chats.
    • Source card UI designed to be more compact and scannable.
    • Improved feedback flow with clearer response handling.
    • Updated “More from the community” links to display the logos of Stack Exchange network sites.

“Classic” Stack Overflow

For now, the “classic” Stack Overflow experience (stackoverflow.com) will remain the same. Users will be able to toggle between the “classic” and redesigned experience throughout the beta. However, the majority of AI Assist’s most recent changes have only been implemented on the redesigned experience, as noted above.

Notable changes

  • Responses are faster and more accurate due to switching over to an agentic RAG infrastructure.

January 22, 2026

Notable changes

  • Responses
    • Responses load much faster now with optimizations to our search and re-ranker service.
    • Search results from Stack, not used for quotes, are now included at the bottom of responses to provide even more relevant content from the network.
  • Shared conversations
    • You can continue to share conversations and re-share any updates with a new URL. Think of it like branching, but for conversations!
    • Shared conversation names are now used as page titles in the browser.
    • Shared conversations include support and contact information in case they need to be reported.
  • Better input formatting
    • When submitting code as part of a question, AI Assist now displays it in markdown format for better readability where possible.
  • UX improvements
    • Added “About AI Assist” link in the left sidebar so that users have a direct path to documentation
    • Updated source cards to display the logos of Stack Exchange network sites (where appropriate)
    • Optimized spacing so that users don’t have to scroll as much
    • Removed the “import chat” options due to low usage
    • Added a link to the Stack Overflow MCP server documentation

Bug fixes

A big thank you to the community for taking the time to test and submit bugs. Here’s what we’ve addressed:

  • Search results and responses now appear in the same language as the user’s input more consistently.
  • Share links are disabled until the response is loaded.
  • Source cards weren’t always showing, especially when translating content; that is now fixed.
  • Fixed Copy action in Safari, where it was crashing the page.
  • Resolved blank chat title in the Recent Chats section of the left sidebar.
  • Fixed the close button in the Share popover where it wasn’t working.
  • Set the code Copy button position to be fixed so it doesn’t scroll or display off-screen.