Fixed
- Reconnect to remote MCP servers after idle Streamable HTTP sessions expire
- Messaging a running background agent now steers its active turn at the next processing opportunity.
- Context rollovers keep your latest requests in the recovery context.
- Hide the automatic sandbox CA setup prompt on Windows accounts that cannot self-elevate
- Copilot no longer describes a subagent as configured when the current session cannot run it. Previously a session that could not use rubber-duck still reported it as set up in /subagents, and asking for it failed instead of being skipped cleanly.