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wire 2026-09-18
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OpenEnv 0.5.0 ships new public surface, capture proxy gains an admin key

By RepoJournal · Filed · About Hugging Face · Composed from the cited sources · methodology

OpenEnv cuts 0.5.0 with the openenv.harbor package and new catalog, discover, and validate commands, while its capture proxy control plane stops accepting unauthenticated callers and TRL deletes four trainers it once marked experimental.

v0.5.0 huggingface/OpenEnv

by github-actions[bot]

The release notes list the restored RFC 008 manifest and validation contracts and the openenv validate skeleton, but the release PR is blunt about why this is 0.5.0 and not a patch: it "adds new public surface," and "a patch number would misrepresent it." 47 commits have landed since v0.4.2.

fix(harbor): require an admin key on the capture proxy control plane huggingface/OpenEnv

by burtenshaw

The capture proxy's session routes were gated by _admin_ok(), which admitted every caller whenever app.state.admin_key was unset, leaving POST /sessions (an open relay to the upstream engine), GET /sessions, and the per-session rollout and trace endpoints reachable. The fix requires an admin key on that control plane, so anyone running the proxy without one should set it before exposing it.

Remove the experimental BCO trainer (#7136) huggingface/trl

by Quentin Gallouédec

Quentin Gallouédec removed the experimental BCO trainer, the second of several deletions. Anything importing it from trl no longer has it, so pinning to the last version that shipped it is your only route if you still depend on the class.

Remove the experimental Nash-MD trainer (#7255) huggingface/trl

by Albert Villanova del Moral

Albert Villanova del Moral removed the experimental Nash-MD trainer, following PRM and XPO. Four trainers that were labeled experimental have now been dropped across this batch of changes.

fix(ci): harden workflow files flagged on #7 (#8) huggingface/tokbench

by hf-security-analysis[bot]

The security analysis bot's hardening PR declared job permissions in .github/workflows/bench.yml, and it carries its own warning: "This narrows what the workflow can reach," because each job now gets only the scopes its steps were read to need and will fail on the next run if a step does something the analysis could not see. The same bot separately opened a Dependabot bump for actions/checkout ...

Quick answers

What shipped in Hugging Face on September 18, 2026?
OpenEnv cuts 0.5.0 with the openenv.harbor package and new catalog, discover, and validate commands, while its capture proxy control plane stops accepting unauthenticated callers and TRL deletes four trainers it once marked experimental. In total, 24 commits, 23 pull requests, and 1 releases landed.
Who contributed to Hugging Face on September 18, 2026?
13 developers shipped this update, including Tarek Ziade, github-actions[bot], cursor, mugenkyou, burtenshaw, Quentin Gallouédec, Albert Villanova del Moral, and kashif, and 5 more.
What were the notable Hugging Face updates?
v0.5.0, fix(harbor): require an admin key on the capture proxy control plane, and Remove the experimental BCO trainer (#7136).