Highlights

• Codex Max as default (#7566): Codex Max is now the default model, and a TUI panic related to async-in-sync code was fixed.
• Better resume UX (#7302, [#7303]): Added a /resume slash command and improved resume performance so picking work back up is snappier.
• Tooltips & tips UX (#7557, [#7440]): Tips/tooltips are rendered via markdown with a bold “Tip” label and richer Codex tooltips across the app.
• TUI quality-of-life (#7530, [#7448], [#7514], [#7461]): TUI gets Ctrl‑P/N navigation, screen-line-capped shell output, restored Windows clipboard image paste, and a refactor for cleaner layout.
• History and context hygiene (#6242, [#7483], [#7545], [#7431], [#7483]): history.jsonl is trimmed by history.max_bytes, common junk dirs (incl. pycache) are ignored by default, and paste placeholders stay distinct.

PRs Merged

• use markdown for rendering tips [#7557] @[Jeremy Rose]
• Migrate codex max [#7566] @[Ahmed Ibrahim]
• Remove test from [#7481] that doesn't add much value [#7558] @[Eric Traut]
• [app-server] make file_path for config optional [#7560] @[Celia Chen]
• Migrate model family to models manager [#7565] @[Ahmed Ibrahim]
• Migrate tui to use models manager [#7555] @[Ahmed Ibrahim]
• Introduce ModelsManager and migrate app-server to use it. [#7552] @[Ahmed Ibrahim]
• fix: wrap long exec lines in transcript overlay [#7481] @[muyuanjin]
• fix: Features should be immutable over the lifetime of a session/thread [#7540] @[Michael Bolin]
• feat: Support listing and selecting skills via $ or /skills [#7506] @[xl-openai]
• [app-server] fix: add thread_id to turn/plan/updated [#7553] @[Owen Lin]
• feat(tui): map Ctrl-P/N to arrow navigation in textarea [#7530] @[Aofei Sheng]
• fix(tui): limit user shell output by screen lines [#7448] @[muyuanjin]
• Migrate model preset [#7542] @[Ahmed Ibrahim]
• fix: main [#7546] @[jif-oai]
• feat: add pycache to excluded directories [#7545] @[jif-oai]
• chore: update unified exec sandboxing detection [#7541] @[jif-oai]
• add slash resume [#7302] @[Ahmed Ibrahim]
• chore: conversation_id -> thread_id in app-server feedback/upload [#7538] @[Owen Lin]
• chore: delete unused TodoList item from app-server [#7537] @[Owen Lin]
• chore: update app-server README [#7510] @[Owen Lin]
• chore: remove bun env var detect [#7534] @[Shijie Rao]
• feat: support list mcp servers in app server [#7505] @[Shijie Rao]
• seatbelt: allow openpty() [#7507] @[Jeremy Rose]
• feat: codex tool tips [#7440] @[jif-oai]
• feat: retroactive image placeholder to prevent poisoning [#6774] @[jif-oai]
• feat: model warning in case of apply patch [#7494] @[jif-oai]
• fix(tui) Support image paste from clipboard on native Windows [#7514] @[Dylan Hurd]
• fix(unified_exec): use platform default shell when unified_exec shell… [#7486] @[Robby He]
• Update device code auth strings. [#7498] @[Matthew Zeng]
• fix: inline function marked as dead code [#7508] @[Michael Bolin]
• improve resume performance [#7303] @[Ahmed Ibrahim]
• fix: path resolution bug in npx [#7134] @[Michael Bolin]
• Ensure duplicate-length paste placeholders stay distinct [#7431] @[Joshua Sutton]
• feat: support --version flag for @openai/codex-shell-tool-mcp [#7504] @[Michael Bolin]
• refactor: tui.rs extract several pieces [#7461] @[Josh McKinney]
• chore: make create_approval_requirement_for_command an async fn [#7501] @[Michael Bolin]
• Trim history.jsonl when history.max_bytes is set [#6242] @[liam]
• fix: remove serde(flatten) annotation for TurnError [#7499] @[Owen Lin]
• persisting credits if new snapshot does not contain credit info [#7490] @[zhao-oai]
• fix: drop lock once it is no longer needed [#7500] @[Michael Bolin]
• execpolicy helpers [#7032] @[zhao-oai]
• Show token used when context window is unknown [#7497] @[Ahmed Ibrahim]
• Use non-blocking mutex [#7467] @[Ahmed Ibrahim]
• Fix: track only untracked paths in ghost snapshots [#7470] @[lionel-oai]
• feat: ignore standard directories [#7483] @[jif-oai]
• fix: add ts number annotations for app-server v2 types [#7492] @[Owen Lin]
• feat: intercept apply_patch for unified_exec [#7446] @[jif-oai]
• chore: remove mention of experimental/unstable from app-server README [#7474] @[Owen Lin]
• Add request logging back [#7471] @[pakrym-oai]
• feat: add one off commands to app-server v2 [#7452] @[jif-oai]
• feat: add warning message for the model [#7445] @[jif-oai]
• chore: review everywhere [#7444] @[jif-oai]
• feat: alias compaction [#7442] @[jif-oai]
• feat: experimental support for skills.md [#7412] @[Thibault Sottiaux]