AI news for : 3 updates. Every card links to the maker's own page.
Codex 0.154.0 adds experimental worktree support for isolated checkouts of new or forked sessions. The same release makes GPT-6-Astra available in the model picker.
Why it matters
Running several Codex tasks on one codebase is safer when each works in its own checkout.
MCP Inspector 2.6.0 supports the Skills extension (SEP-2640), with digest verification.
Why it matters
Founders who ship agent skills over MCP get official tooling to test them.
Transformers v5.17.0 adds Hy4-Preview, a 780B-parameter mixture-of-experts language model that activates 49B parameters per token.
Why it matters
Open models of this size can now be loaded with standard Hugging Face tooling.
Find dated assistant changes, one table per assistant, in the tracker.