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GitHub Actions workflow lockfiles enter public preview to pin actions to exact commits

The gh actions-lock CLI extension writes .github/workflows/actions.lock, pinning every action (transitive ones included) to a reviewed commit, so a moved or hijacked tag can't swap in new code; Dependabot updates the lock in the same PR. It's in preview for GitHub Enterprise Cloud, with an optional Require lockfile policy for admins.

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Chainguard MCP goes GA with four enterprise servers for agent dependency checks

Chainguard opened GA for enterprise on four OAuth MCP servers— cg oci , cg apk , cg versions , and cg api —so agents in Claude Code, Cursor, and other MCP clients can verify image tags, Wolfi package equivalents, EOL status, and org policy before shipping deps. Connect via each server URL with browser OAuth, or headless with chainctl auth login audience=<server…

Chainguard Blog

GPT-5.5 retires from ChatGPT, Work, and Codex; API stays available

On Oct 14, OpenAI retired GPT 5.5 from ChatGPT, ChatGPT Work, and Codex on every plan; the OpenAI API is unaffected. Codex users on ChatGPT sign in should replace gpt 5.5 with gpt 6 sol (Plus/Pro/Business/Enterprise/Edu) or gpt 6 luna (Free/Go desktop), including config.toml , custom agents, and scheduled tasks…

OpenAI Docs

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