Fixed

• With --screen-reader, failed and rejected tool calls, errors such as an unknown command, and warnings now begin with "Error:" or "Warning:" instead of reading like any other message.
• /resume foregrounds an already running background session instead of showing it twice on exit
• An HTTP MCP server that accepts connections but never answers now holds startup for its connection timeout once, instead of three times over
• Saving MCP server changes preserves symlinked mcp-config.json files and updates the symlink target.
• Keep /skills add, remove, and reload in sync with session skills and report refresh failures immediately

Fixed

• apply_patch keeps the line ending of every line it does not change in a file that mixes LF and CRLF endings, instead of rewriting the whole file to the ending of its first few lines.
• COPILOT_PROVIDER_GHES_HOST now accepts the instance's browser address, such as https://ghes.example.com/, instead of failing with a malformed https://https//... URL, and a value that is not a host name fails with an error explaining the expected format.
• Text pasted over several lines after /clear, /new, /ask, /delegate or /diagnose keeps its line breaks and indentation instead of reaching the model as one line
• A copilot -p run stopped by Ctrl+C or a signal now finishes writing the session's shutdown record (usage and code-change totals) before it exits
• A session.resume request whose params are not a JSON object now fails with an error instead of crashing the copilot --server process
• web_fetch now decodes pages in the character encoding they declare (Content-Type charset or a meta tag), so ISO-8859-1, windows-1252 and other non-UTF-8 pages no longer reach the model with their accented characters replaced.
• Session picker closes immediately after a /resume switch commits
• Fix clipboard copy on WSL by running clip.exe with compatible cmd.exe arguments
• Generated images now save correctly on filesystems without hard-link support
• Return the original refusal when an organization disables a Claude fallback model
• Blocked MCP server warnings now include the specific registry failure reason.
• Rewind keeps turns where agents edit files above the capture size limit
• Reopening a recently closed local session no longer stalls for up to 30 seconds
• Sources a tool returns for citations are kept with the tool result, so Claude can still cite them after a session is resumed

2026-10-27

• Selecting Copilot Fusion High or Max in /model now works from long-context sessions

Fixes and changes

Fixed

• Selecting Copilot Fusion High or Max in /model now works from long-context sessions

2026-10-27

• Managed model "fusion" now starts sessions on Auto and applies fusionTier settings
• Interactive and SDK Autopilot sessions keep waiting for attached background tasks instead of stopping after COPILOT_TASK_WAIT_TIMEOUT_SECONDS; -p --autopilot still honors it
• When a saved Auto preference is no longer available, Auto falls back to its default preference instead of failing each turn
• Assisted Permissions are available without enabling experimental mode.

Fixes and changes

Fixes and changes

Fixed

• Managed model "fusion" now starts sessions on Auto and applies fusionTier settings
• Interactive and SDK Autopilot sessions keep waiting for attached background tasks instead of stopping after COPILOT_TASK_WAIT_TIMEOUT_SECONDS; -p --autopilot still honors it

Fixes and changes