v1.16.2

## Core

### Bugfixes

- Reasoning summaries now only run on providers that support them, avoiding GPT-5 request failures on compatible backends.
- Edit operations now refuse loose matches that could overwrite the wrong code or replace an existing file by mistake.
- Fixed Bedrock sessions hanging before a model response starts. (@alblez)

### Improvements

- Diff viewer now supports next and previous hunk navigation.
- Terminal themes now refresh after live terminal reloads without stale colors or broken highlighting.
- Running subagents can now be sent to the background so you can keep working.
- Sessions now persist system context updates during long-running conversations.
- Added Snowflake Cortex provider support. (@kameshsampath)

## TUI

### Bugfixes

- Fixed the external editor fallback so attach-mode sessions still open when the original project path is unavailable locally. (@pcadena-lila)
- Permission replies now route through the correct session directory.
- `/mo` now prefers the models command in slash autocomplete.
- Fixed crashes from malformed path or diff metadata in permission and session views.

## Desktop

### Bugfixes

- Fixed titlebar tab overflow clipping.
- Fixed overflowed titlebar tabs so scrolling and drag regions behave correctly.
- Improved tab closing and navigation so the next tab is selected more reliably.

### Improvements

- Improved multi-server desktop support with per-server home state and session tabs.

**Thank you to 5 community contributors:**
- @kameshsampath:
  - feat(core): add Snowflake Cortex provider (#29901)
- @pcadena-lila:
  - fix(tui): fall back to local cwd when editor spawns in attach mode (#30583)
- @weiconghe:
  - fix: use mapError instead of orDie for context snapshot decoding (#30905)
- @alblez:
  - fix(opencode): resolve Bedrock hang by using node build conditions (#30873)
- @jerome-benoit:
  - fix(workflows): retry nix-hashes compute-hash on transient failure (#30743)