AI news in May 2026: Codex & Claude

Usage resets

Completed and reported resets, announcements and banked resets. Only Completed entries count as a finished reset. Full monthly logs: Codex resets in May 2026 · Claude resets in May 2026.

• 31 MayCodex Codex reset on May 31, 2026 (reported)Usage reset
• 23 MayCodex Codex reset on May 23, 2026 (reported)Usage reset
• 16 MayCodex Codex reset on May 16, 2026 (reported)Usage reset
• 15 MayClaude Claude reset on May 15, 2026 (completed)Five-hour and weekly allowances restored.

Claude Code releases (28)

• 31 MayClaude Code 2.1.159Internal infrastructure improvements (no user-facing changes)
• 30 MayClaude Code 2.1.158Auto mode is now available on Bedrock, Vertex, and Foundry for Opus 4.7 and Opus 4.8. Opt in by setting CLAUDE_CODE_ENABLE_AUTO_MODE=1
• 29 MayClaude Code 2.1.157Plugins in .claude/skills directories are now automatically loaded, no marketplace required · Added claude plugin init to scaffold a new plugin in .claude/skills ·…
• 29 MayClaude Code 2.1.156Fixed an issue when using Opus 4.8 where thinking blocks were modified, leading to API errors.
• 28 MayClaude Code 2.1.154Opus 4.8 is here! Now defaults to high effort · /effort xhigh for your hardest tasks · Introducing dynamic workflows: ask Claude to create…
• 28 MayClaude Code 2.1.153Added skipLfs option to github/git plugin marketplace sources to skip Git LFS downloads during clone and update · Claude Code now shows a one-time…
• 27 MayClaude Code 2.1.152/code-review --fix now applies review findings to your working tree after the review, surfacing reuse, simplification, and efficiency suggestions; /simplify now invokes /code-review --fix…
• 23 MayClaude Code 2.1.150Internal infrastructure improvements (no user-facing changes)
• 22 MayClaude Code 2.1.149/usage now shows a per-category breakdown of what's driving your limits usage — skills, subagents, plugins, and per-MCP-server cost · /diff detail view can…
• 22 MayClaude Code 2.1.148Fixed the Bash tool returning exit code 127 on every command for some users (a regression introduced in 2.1.147)
• 21 MayClaude Code 2.1.147Pinned background sessions (Ctrl+T in claude agents) now stay alive when idle, are restarted in place to apply Claude Code updates, and are shed…
• 21 MayClaude Code 2.1.146Renamed /simplify to /code-review with an optional effort level (e.g. /code-review high) · Auto mode no longer suppresses AskUserQuestion when the user or a…
• 19 MayClaude Code 2.1.145Added claude agents --json to list live Claude sessions as JSON for scripting (tmux-resurrect, status bars, session pickers) · Added agent_id and parent_agent_id attributes…
• 19 MayClaude Code 2.1.144Added /resume support for background sessions — sessions started via claude --bg or agent view now appear alongside interactive ones, marked with bg ·…
• 15 MayClaude Code 2.1.143Added plugin dependency enforcement: claude plugin disable now refuses when another enabled plugin depends on the target (with a copy-pasteable disable-chain hint), and claude…
• 14 MayClaude Code 2.1.142Added new claude agents flags: --add-dir, --settings, --mcp-config, --plugin-dir, --permission-mode, --model, --effort, and --dangerously-skip-permissions to configure dispatched background sessions · Fast mode now uses…
• 13 MayClaude Code 2.1.141Added terminalSequence field to hook JSON output so hooks can emit desktop notifications, window titles, and bells without a controlling terminal · Added CLAUDE_CODE_PLUGIN_PREFER_HTTPS…
• 12 MayClaude Code 2.1.140Improved Agent tool subagent_type matching to accept case- and separator-insensitive values (e.g. "Code Reviewer" resolves to code-reviewer) · Updated agent color palette · Fixed…
• 11 MayClaude Code 2.1.139Added agent view (Research Preview): a single list of every Claude Code session — running, blocked on you, or done. Run claude agents to…
• 9 MayClaude Code 2.1.138Internal fixes
• 9 MayClaude Code 2.1.137[VSCode] Fixed extension failing to activate on Windows
• 8 MayClaude Code 2.1.136Added CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL to re-enable the session quality survey for enterprises capturing responses through OpenTelemetry · Added settings.autoMode.hard_deny for auto mode classifier rules that block…
• 7 MayClaude Code 2.1.133Added worktree.baseRef setting (fresh | head) to choose whether --worktree, EnterWorktree, and agent-isolation worktrees branch from origin/ or local HEAD. Note: the default fresh…
• 6 MayClaude Code 2.1.132Added CLAUDE_CODE_SESSION_ID environment variable to the Bash tool subprocess environment, matching the session_id passed to hooks · Added CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN=1 env var to opt out…
• 6 MayClaude Code 2.1.131Fixed VS Code extension failing to activate on Windows due to a hardcoded build path in the bundled SDK (createRequire polyfill bug) · Fixed…
• 6 MayClaude Code 2.1.129Added --plugin-url flag to fetch a plugin .zip archive from a URL for the current session · Added CLAUDE_CODE_FORCE_SYNC_OUTPUT=1 env var to force-enable synchronized…
• 4 MayClaude Code 2.1.128Bare /color (no args) now picks a random session color · /mcp now shows the tool count for connected servers and flags servers that…
• 1 MayClaude Code 2.1.126The /model picker now lists models from your gateway's /v1/models endpoint when ANTHROPIC_BASE_URL points at an Anthropic-compatible gateway · Added claude project purge [path]…

Claude Code changelog

Codex CLI releases (7)

• 28 MayCodex CLI 0.135.0codex doctor now reports richer environment, Git, terminal, app-server, and thread inventory diagnostics for support cases. (#24261, #24311, #24305) · /status shows remote connection…
• 26 MayCodex CLI 0.134.0Added search across local conversation history, including case-insensitive content matches with result previews. (#23519, #23921) · Made --profile the primary profile selector across CLI,…
• 21 MayCodex CLI 0.133.0Goals are now enabled by default, backed by dedicated storage, and track progress across active turns. (#23300, #23685, #23696, #23732) · codex remote-control now…
• 20 MayCodex CLI 0.132.0The Python SDK now supports first-class authentication, including API key login, ChatGPT browser and device-code flows, account inspection, and logout APIs. (#23093) · Python…
• 18 MayCodex CLI 0.131.0The TUI now offers richer session controls and display: data-driven service-tier commands, blended token usage, permissions/approval mode, effective workspace roots, and responsive Markdown tables.…
• 8 MayCodex CLI 0.130.0Plugin details now show bundled hooks, and plugin sharing exposes link metadata plus discoverability controls. (#21447, #21495, #21637) · Added codex remote-control as a…
• 7 MayCodex CLI 0.129.0The TUI now supports modal Vim editing in the composer, including /vim, default-mode config, and Vim-specific keymap contexts. (#18595) · TUI workflows are easier…

Codex CLI changelog