Alpha· Notable · Confirmed

Feedback attachments and remote plugin version reporting are corrected

Codex fixed MIME types for path-backed feedback attachments and began exposing remote plugin versions.

Release activity: 2026-07-05

The visible fixes improve attachment handling and give plugin UIs more accurate version information for remote entries.

Alpha release context: 1 official tag was published that UTC day (rust-v0.143.0-alpha.36). The full comparison contains 6 commits and 32 changed files.

Evidence

Path-backed feedback attachments now use the correct MIME types.Why it matters: Feedback uploads backed by local paths should be identified correctly by downstream consumers.

Direct evidence · Confirmed

Supporting sources

Fix MIME types for path-backed feedback attachments (#30796) commit · Official
rust-v0.143.0-alpha.35 to rust-v0.143.0-alpha.36 comparison tag-compare · Official

Conflicting sources

No conflicting sources recorded.

Remote plugin versions are exposed.Why it matters: Clients can show which remote plugin version is available instead of presenting the entry without version context.

Direct evidence · Confirmed

Supporting sources

[codex] expose remote plugin versions (#30981) commit · Official
rust-v0.143.0-alpha.35 to rust-v0.143.0-alpha.36 comparison tag-compare · Official

Conflicting sources

No conflicting sources recorded.

Codex reads buffering metadata from response events.Why it matters: The client can reflect buffering state from the response stream more accurately.

Direct evidence · Confirmed

Supporting sources

[codex] Read buffering metadata from response events (#31064) commit · Official
rust-v0.143.0-alpha.35 to rust-v0.143.0-alpha.36 comparison tag-compare · Official

Conflicting sources

No conflicting sources recorded.

Availability

Availability note: these sources establish repository and CLI release activity. They do not, by themselves, prove that the same changes were live in Codex Desktop.

Availability by surface

Surface	Status	Claim-level evidence
CLI	Prerelease · Documented · General	`claim-2026-07-05-attachment-mime`: Prerelease · Documented · General · version 0.143.0-alpha.36 · source-release-2026-07-05 `claim-2026-07-05-remote-plugin-versions`: Prerelease · Documented · General · version 0.143.0-alpha.36 · source-release-2026-07-05 `claim-2026-07-05-buffering-metadata`: Prerelease · Documented · General · version 0.143.0-alpha.36 · source-release-2026-07-05
Desktop	Unknown · Unknown · Unknown	`claim-2026-07-05-attachment-mime`: Unknown · Unknown · Unknown · source-release-2026-07-05 `claim-2026-07-05-remote-plugin-versions`: Unknown · Unknown · Unknown · source-release-2026-07-05 `claim-2026-07-05-buffering-metadata`: Unknown · Unknown · Unknown · source-release-2026-07-05
IDE	Unknown	No central-claim assertion recorded.
Cloud	Unknown	No central-claim assertion recorded.
Mobile	Unknown	No central-claim assertion recorded.