Software

Microsoft's October Patch Tuesday, released on October 13, 2026, is the largest in the company's history. Cisco Talos counted 1,415 vulnerabilities addressed across Microsoft products, including 85 rated critical, 67 of them remote code execution flaws. Computer Weekly noted that the total exceeds the number Microsoft fixed in all of 2023, and that it shatters the previous record of roughly 1,000 flaws set just last month, which itself had passed a mark of a little over 600 set in July. By comparison, the October 2025 release addressed about 175 flaws.

Self-managed GitLab servers need an urgent update. On October 12, GitLab released emergency patches for a maximum-severity vulnerability in its CI/CD Regular Expression Compiler, warning that the flaw could allow an unauthenticated attacker to execute arbitrary code on the GitLab server itself.

At its Gemini at Work 2026 event on October 8, 2026, Google Cloud CEO Thomas Kurian introduced the Gemini agent — which Google describes as "a single, universal agent for work" that answers questions, handles knowledge work, creates media, and writes and runs code. The agent runs on the web, iOS, Android, Windows, Mac, and the command line; inside Google Workspace, Microsoft 365, and Slack; and headlessly inside third-party applications. The pitch: one interface, one API, and an objective instead of step-by-step instructions.

One of the more consequential shifts in developer infrastructure this week arrived on Friday: the entire Deno team is joining Cloudflare. The move, announced October 9 on both companies' blogs, folds the startup behind the Deno JavaScript and TypeScript runtime into Cloudflare's Workers and Durable Objects organization. Financial terms were not disclosed.

Cisco unveiled a new generation of agentic collaboration capabilities on October 7, repositioning Webex around AI agents that work alongside people instead of waiting for prompts. The centerpiece is Claude in Webex, built with Claude Managed Agents, which lets teams analyze data, generate content, and execute multi-step work using shared enterprise context without leaving the collaboration app.

IT administrators have four days left on a deadline that affects millions of PCs. On October 13, 2026, Windows 11 version 24H2 in Home and Pro editions reaches end of updates, alongside Windows 10 Enterprise LTSB 2016 and Office 2021. After that date, those editions stop receiving Microsoft's monthly security and non-security updates.