Recent Copilot updates (Dec. 17–19, 2025)
Between Dec. 17 and Dec. 19, 2025, the GitHub changelog recorded a compact run of updates focused on Copilot models, new features, and enterprise tooling. The entries include multiple model releases, additions to Copilot functionality, and enterprise-facing metrics and residency features — items relevant to teams and developers tracking AI-assisted workflows.
Highlights
- Model rollouts: Several GPT-class models were made generally available in Copilot across these dates, including GPT-5.2, GPT-5.1, GPT-5.1-Codex, and GPT-5.1-Codex-Max.
- Assistant and skill enhancements: Copilot gained support for Agent Skills and introduced memory early access for Pro and Pro+.
- Multi-model support: Claude Opus 4.5 became generally available as an option within Copilot.
- Enterprise features: Preview and public-preview announcements covered code review preview features with data residency in GitHub Enterprise Cloud and the inclusion of enterprise-level pull request activity in Copilot Usage Metrics.
Notable entries (with links)
- Dec. 19 — Release: Copilot memory early access for Pro and Pro+
- Dec. 18 — Improvement: Assigning GitHub Copilot to an issue now adds you as an assignee
- Dec. 18 — Release: GitHub Copilot now supports Agent Skills
- Dec. 18 — Release: Claude Opus 4.5 is now generally available in GitHub Copilot
- Dec. 18 — Improvement: Copilot code review preview features now supported in GitHub Enterprise Cloud with data residency
- Dec. 18 — Release: Enterprise-level pull request activity now included in Copilot Usage Metrics in public preview
- Dec. 17 — Release: GPT-5.2 is now generally available in GitHub Copilot
- Dec. 17 — Release: GPT-5.1-Codex-Max is now generally available in GitHub Copilot
- Dec. 17 — Release: GPT-5.1 and GPT-5.1-Codex are now generally available in GitHub Copilot
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For the full changelog and navigation, see the GitHub changelog.
Original source: https://github.blog/changelog/2026-01-06-gemini-3-flash-is-now-available-in-visual-studio-jetbrains-ides-xcode-and-eclipse


