On October 22, Anthropic donated the Agent Skills standard (name, logo, GitHub org, agentskills.io) to the Agentic AI Foundation under the Linux Foundation. Anthropic says 1 million skills are published and nearly 280 million installed across 70+ platforms; those are vendor-reported figures.
Claude Code v2.1.316 (Oct 31) deprecates fast mode for Opus 4.8 as of Oct 30 with removal on Nov 30, 2026 (requests will error, not fall back), adds CLAUDE_CODE_SUBAGENT_EFFORT and CLAUDE_CODE_DISABLE_ULTRATHINK, and pools group budgets on the apps gateway. Changelog-only analysis; not run.
Claude Code v2.1.314 (Oct 30) adds permissions.blockWritesOutsideWorkingDirectories, which makes Write, Edit and NotebookEdit refuse paths outside the working directories in every permission mode, plus idle compaction in VS Code and Desktop for 200K+ token conversations. Changelog-only analysis; not run.
Claude Code v2.1.312 (Oct 27) switches unrecognized model names on Bedrock, Vertex, Foundry and Mantle to the shorter system prompt, caps prompt and agent hooks at 24 concurrent per session, and stops emitting the claude_code.safety_event OpenTelemetry event. Changelog-only analysis; not run.
Claude Code v2.1.311 (Oct 26) makes cloud-provider installs load model settings from a signed file on downloads.claude.ai, ties ultrathink to xhigh effort, and lands 56 bug fixes including a subagent worktree deleted under a running background agent. Changelog-only analysis; not run.
DeepSeek’s V4.1-Flash-1017 checkpoint (Oct 17, MIT) claims 77.0 on DeepSWE v1.1 and 42.3 on Terminal-Bench 4.0. Vals.ai’s independent run puts Terminal-Bench 4.0 at 31.82%, rank 19 of 55. Parameter counts also disagree across sources (552B vs 763B).
Claude Code v2.1.310 follows the v2.1.309 hardening release one day later with gateway retry fixes, symlink targets in read prompts, a Windows hook fail-open fix, and custom Enterprise roles for cloud sessions. Changelog-only analysis; not run.
Claude Code v2.1.309 ships roughly 60 changelog bullets, and the heart of it is closing gaps in the sandbox, Bash permission checks and worktree isolation guard. It also makes claude ultrareview require workspace trust and denies dangerous rm calls outright in bypass mode on Desktop and VS Code. Changelog-only analysis; not run.
Claude Code v2.1.307 adds a claude_code.safety_event OpenTelemetry event for tool calls stopped, prompted or sent back by permission rules, auto mode, hooks or the sandbox, plus /claude-api api-version to move code to API version 2026-10-21. It also fixes HTTP MCP tool calls being sent twice. Changelog-only analysis; not run.
On October 19, GitHub Copilot removes Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini and Grok 4.5 from every Copilot surface. Replacements are Gemini 3.8 Flash, GPT-5.6 Sol and Luna, and Grok 4.6, auto-enabled for Business and Enterprise unless admins opted out.