## Release v0.51.258 — Release HZ (stage-r6)
Fresh-arrival low-risk pair (both @rodboev, landed in the last sweep window).
### Fixed
| Issue | Fix |
|-------|-----|
| #3597 | The "update available" banner now shows from **any panel** (Settings → System "Check now", etc.), not just the Chat view — it was positioned inside the chat surface so it only rendered there. |
| #3592 | Under Simplified Tool Calling, an assistant turn with **thinking but no tool calls** now renders that thinking inline on settlement instead of burying it in an empty collapsed activity group. |
### Review fix absorbed (Codex)
#3592's inline-render `continue` skipped the activity-group creation that carried the turn's `data-turn-duration`, but the footer still suppressed the "Done in …" duration for any `assistantThinking` turn → thinking-only turns silently lost their duration display. Fixed: footer duration is now suppressed **only** for turns that actually build an activity group (`toolCallAssistantIdxs.has(mi)`), so thinking-only inline turns keep "Done in …". + regression test.
### Gate
- Full pytest suite: **7631 passed, 0 failed**
- ESLint: CLEAN · browser-smoke: CLEAN
- Codex (regression): SHIP-ONLY-WITH-FIXES (duration-drop) → fixed → **SAFE TO SHIP**
### Sweep note
#3603 + #3604 (sidebar CLI-session classification, same author/area) were **not** included — they assert contradictory models for a sidecar-less `source='cli'` recovery row; flagged on both PRs for the author to reconcile.
Co-authored-by: rodboev <rodboev@users.noreply.github.com>
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