AI Coding & Developer Tools

What Happened GitHub is redesigning its Git infrastructure for repositories where developers and agents work concurrently. Monthly Git events more than doubled between September 2025 and August 2026, reaching 473.3 billion. Its proposed architecture coordinates reference updates while parallelizing other push work, moves maintenance off the serving path, and separates compute from durable storage. GitHub…

What Happened ReviewBench released a public research preview for evaluating AI code reviewers offline. It contains 219 public pull requests from 187 repositories across 19 languages, selected after an analysis of 103.9 million GitHub pull requests. Its reference findings combine human reviews, author follow-up commits, static tools, and LLM analysis; independent senior engineers agreed with…

What Happened GitHub completed its rollout of stateless GitHub App installation tokens. Newly minted tokens now default to the ghs_APPID_JWT format and are about 520 characters long, up from roughly 40. Repository scoping, permissions, one-hour expiration, and the REST API endpoint are unchanged. GitHub plans to deprecate the temporary X-GitHub-Stateless-S2S-Token header on November 30, 2026.…

What Happened GitHub added REST and GraphQL support for requesting Copilot code reviews, including a per-request effort setting. Balanced became the default effort level on September 28 for new and existing repositories and organizations; explicit Lite selections remain in place. Settings can be configured at enterprise, organization, repository, and personal levels, with lower levels able…

What Happened GitHub launched self-serve trials of GitHub Advanced Security for GitHub Team customers, allowing evaluation of GitHub Code Security and GitHub Secret Protection from org Overview, Licensing, or Risk Assessment pages [3]. GitHub released HydraFusion as a research preview in Visual Studio Code (v1.140+ / Insiders) and the GitHub Copilot…

Findings [1] 2026-09-29 Repository custom runner settings for Dependabot As a repository administrator, you can now configure the runner type, optional custom label, and optional runner group for Dependabot version and security updates. This extends the runner configuration already available at the organization level, giving you more control over where each repository’s Dependabot jobs…

Findings [1] 2026-09-28 Self-hosted runner version enforcement date has moved The enforcement date for GitHub Actions minimum version requirements for self-hosted runners on GitHub Enterprise Cloud has changed. The change ships Monday, September 28, 2026, and full enforcement now begins Tuesday, September 29, 2026. This is instead of the date that was previously announced.…

Findings [1] 2026-09-25 Enterprise managed settings in-product validator You can now use an in-product validator for enterprise managed settings for GitHub Copilot. The validator detects malformed JSON, unsupported configurations, invalid team mappings, and other errors that can prevent policies from being enforced. Review and correct errors in the “Copilot settings validation” section of the…

Findings [1] 2026-09-25 Private saved views for repository issues and “Relates to” issue relationship is generally available Private saved views for repository issues Repository issues pages now support private saved views, making it easier to create and save personalized views of your issues. “Relates to” issue relationship The “Relates to” issue relationship now works…

Findings [1] 2026-09-24 Require proof of presence for high-impact actions You can now require an interactive re-authentication or a multi-factor challenge before members take high-impact actions on GitHub Enterprise Cloud accounts. Proof of presence is an expansion of GitHub’s sudo mode for enterprises, enforcing a higher security bar when it’s needed. This public preview…

Findings [1] 2026-09-30 Visual Studio Code 1.140 (Insiders) Learn what's new in Visual Studio Code 1.140 (Insiders) Read the full article [2] 2026-09-23 More ways to request and configure Copilot code reviews GitHub Copilot code review now offers additional personal configurations to an expanded set of Copilot plans and an enterprise-level default…