NousResearch/hermes-agent

Desktop live-session model/reasoning changes and stale_generation errors

Cluster 138952 · apps/desktop. Data as of 2026-10-27 11:58 UTC

Nothing open on GitHub. Fix merged in #139604 on 16 Oct 2026. Check it covers your case.

open issues

open PRs

items grouped

Known?: Yes. 3 related items grouped here, 1 issue already closed.
Fix event: A fix was merged to main in PR #139604. Check it covers your case. No release data is tracked.
Tracker: The maintainers' tracker marks this resolved, deciding PR #139604. That is separate from the fix event.
Still open: Nothing open on GitHub.

Next step: read #139604, then check it covers your case.

Read #139604 Pick up a Lab task

These members appear to concern the desktop app's handling of live-session model or reasoning-option changes, with one bug report describing repeated stale_generation failures from a retained session.mutate carrying an outdated expected_generation. The other two are fix-oriented items touching related behavior (next-turn application of a model pick, and retiring stale generation mutations); the titles alone don't establish their outcome.

Open issues0

No open issues.

Open PRs0

No open pull requests.

Fixes on record

Merged to main. A stamp counts the issues a fix is linked to.

#139604 fix(gateway,desktop): a live-session model pick applies to the next turn or says why not

merged to main

files: apps/desktop/src/api/canonical-live-pick.test.ts, apps/desktop/src/api/canonical-protocol.ts, apps/desktop/src/api/canonical-retained-mutation-stale.test.ts, apps/desktop/src/api/client.ts, apps/desktop/src/app/session/hooks/use-message-stream/gateway-event/deferred-pick.test.ts, apps/desktop/src/app/session/hooks/use-message-stream/gateway-event/deferred-pick.ts, apps/desktop/src/app/session/hooks/use-message-stream/gateway-event/index.ts, apps/desktop/src/app/session/hooks/use-model-controls.test.tsx, apps/desktop/src/app/session/hooks/use-model-controls.ts, apps/desktop/src/i18n/ar_chrome.ts, apps/desktop/src/i18n/de_model_menu.ts, apps/desktop/src/i18n/en_model_menu.ts, apps/desktop/src/i18n/es_model_menu.ts, apps/desktop/src/i18n/fr_model_menu.ts, apps/desktop/src/i18n/ja_model_menu.ts, apps/desktop/src/i18n/ru_model_menu.ts, apps/desktop/src/i18n/types_model_menu.ts, apps/desktop/src/i18n/zh-hant_chrome.ts, apps/desktop/src/i18n/zh_model_menu.ts, gateway/session_authority.py (+31 more)

1 PR closed without merging

From the close comments: other 1

#138959 fix(desktop): retire stale generation mutations · other → #139604

Closed issues · 1

Closed#138952[Bug]: Desktop: changing reasoning effort repeatedly fails with `stale_generation` ("模型选项更新失败") — retained `session.mutate` keeps a stale `expected_generation`

How this cluster was grouped

Link evidence (structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
Pairwise link density 0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. 1.00 means every pair is linked.

Pick up a Lab task

Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.

Open the Lab

At a glance

Subsystem: apps/desktop
Merged PRs: #139604
Closed issues: 1
Attempts: 1 PR closed without merging
Fix link checked: 16 Oct 2026

For your agent

The same facts, typed.

cluster/138952.json
cluster/138952.md