AI Frontier Labs Release Notes Podcast

Source: CHANGELOG.md — v2.1.143. Plugin dependency enforcement. claude plugin disable now refuses if another enabled plugin depends on the target, and prints a copy-pasteable disable chain. claude plugin enable force-enables transitive dependencies automatically. End of silent breakage when plugins depend on each other. PowerShell on by default for Bedrock / Vertex / Foundry on Windows. The PowerS...

Source: CHANGELOG.md — v2.1.142. claude agents inherits session flags. claude agents now accepts --add-dir, --settings, --mcp-config, --plugin-dir, --permission-mode, --model, --effort, and --dangerously-skip-permissions. Before, dispatched background sessions just inherited daemon defaults. Now each session is per-call scoped. Fast mode defaults to Opus 4.7. speed: "fast" and /fast now route thro...

Source: CHANGELOG.md — v2.1.141. Hook terminalSequence output. Hook JSON output now accepts a terminalSequence field, so hooks can emit desktop notifications, window-title updates, and bells without owning a TTY. Lets daemonized and headless hooks signal completion or attention. CLAUDE_CODE_PLUGIN_PREFER_HTTPS. Set this env var to clone GitHub plugin sources over HTTPS instead of SSH. Useful for C...

Source: platform.claude.com release notes — May 11, 2026. Claude Platform on AWS — launched. The full Anthropic API surface is now available through Anthropic-managed infrastructure on AWS, with AWS billing and IAM authentication. That includes the Messages API, Files API, Message Batches API, Claude Managed Agents, Agent Skills, code execution, and tool use — all reachable through native AWS endp...

What's new on the Claude Platform — May 12, 2026 One bullet with a narrow but meaningful audience: fast mode (research preview) now supports Claude Opus 4.7, extending the same speed lever that's been available for Opus 4.6 since February to the newer model. Pricing, rate limits, and access are unchanged — same waitlist, same beta header. Fast mode (research preview) now supports Claude Opus 4.7 W...

What's new in Claude Code v2.1.140 Four quality-of-life changes that take real paper cuts out of advanced workflows: subagent_type matching becomes case- and separator-insensitive on the Agent tool, /loop stops scheduling redundant wakeups for self-notifying tasks, plugin authors now get a warning when a plugin.json key silently shadows a default component folder, and /goal reports cleanly instead...

What's new on the Claude Platform — April 14, 2026 One bullet, but it's a calendar-entry kind of bullet: Anthropic announced deprecation of Claude Sonnet 4 (claude-sonnet-4-20250514) and Claude Opus 4 (claude-opus-4-20250514), with retirement on the Claude API scheduled for June 15, 2026 . Migrate to claude-sonnet-4-6 and claude-opus-4-7 respectively — and note that Opus 4.7 ships with API breakin...

What's new in Claude Code v2.1.133 Five quiet but consequential changes for advanced users: subagents finally inherit project, user, and plugin skill discovery; hooks see the active effort level via JSON input and a $CLAUDE_EFFORT env var; new worktree.baseRef setting picks whether worktrees branch from origin/<default> or local HEAD; admins get sandbox.bwrapPath and sandbox.socatPath for no...

What's new in Claude Code v2.1.136 v2.1.136 ships about fifty bullets, mostly bug fixes — but five of them change daily behavior for advanced users. A plan-mode bypass via Edit allow-rules is closed, a new settings.autoMode.hard_deny key gives security teams unconditional blocks, WSL2 image paste from the Windows clipboard works again, plugin.json's skills entry no longer hides the default skills/...

What's new on the Claude Platform — May 6, 2026 This release expands Claude Managed Agents on four axes: multiagent sessions and Outcomes go public beta, mcp_oauth vault credentials get background refresh, webhooks fire on lifecycle events, and sessions/events get proper filtering and sorting. All updates use the existing managed-agents-2026-04-01 beta header. Multiagent sessions and Outcomes — pu...

What's new in Claude Code v2.1.132 Claude Code v2.1.132 fixes a 10GB+ RSS leak from stdio MCP servers writing to stdout, adds CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN and CLAUDE_CODE_SESSION_ID env vars, corrects the statusline context_window counter, and unblocks 1-hour prompt cache TTL on Bedrock and Vertex. Stdio MCP non-protocol stdout no longer leaks 10GB+ RSS Why: A common MCP-author footgun: wr...

What's new in Claude Code v2.1.129 Claude Code v2.1.129 fixes the 1-hour prompt cache silent downgrade, restores Bash allow-rules for in-project paths, and adds --plugin-url for session-scoped plugin testing — plus new env vars for terminal output, package-manager auto-update, and gateway-model-discovery opt-in. 1-hour prompt cache TTL silent downgrade fixed Why: Users opting into 1h cache TTL wer...

What's new in Claude Code v2.1.128 A polish-heavy release with one real data-safety fix. EnterWorktree used to create the new branch from origin/<default-branch>, silently orphaning any unpushed commits — it now branches from local HEAD as documented. /mcp shows the tool count for each connected server and explicitly flags servers that connected with 0 tools (the most common silent MCP failu...

What's new in Claude Code v2.1.126 A "small unblockings everywhere" release. The headline for platform teams is gateway model discovery — point ANTHROPIC_BASE_URL at any Anthropic-Messages-compatible gateway and the /model picker now populates itself from the gateway's /v1/models endpoint. claude project purge deletes every byte of local state Claude Code stored for a project (transcripts, task li...

What's new in Claude Code v2.1.122 Polish release with five real wins for advanced users. ANTHROPIC_BEDROCK_SERVICE_TIER lets you pick default, flex, or priority on Bedrock — the value flows through as the X-Amzn-Bedrock-Service-Tier header. Pasting a PR URL into /resume now finds the session that created that PR (GitHub, GitHub Enterprise, GitLab, Bitbucket). /mcp exposes claude.ai connectors hid...

What's new in Claude Code v2.1.120 Quietly important release. Windows users no longer need Git for Windows just to run Claude Code — when Git Bash is absent, Claude Code falls back to PowerShell. claude ultrareview [target] ships as a non-interactive CLI subcommand for CI pipelines. Skills get a ${CLAUDE_EFFORT} placeholder for effort-aware authoring. AI_AGENT env var attributes subprocess traffic...

What's new in Claude Code v2.1.121 A quietly meaty release. MCP gets two real polish wins (alwaysLoad opt-out of tool-search deferral, transient-error auto-retry up to 3x). Plugin authors get claude plugin prune for orphaned deps. PostToolUse hooks expand to all tools (previously MCP-only). Headless and SDK get CLAUDE_CODE_FORK_SUBAGENT parity and a --dangerously-skip-permissions allowlist for .cl...

Claude Platform — April 23, 2026 Memory for Claude Managed Agents lands in public beta under the standard managed-agents-2026-04-01 header. Memory stores are workspace-scoped collections of text documents that mount into agent sessions at /mnt/memory/ — the agent reads and writes them with the same file tools it uses for the rest of the filesystem. Every change creates an immutable memory version...

Claude Platform — April 24, 2026 The Rate Limits API lands in the Admin API. It returns the rate limits configured for your organization and per-workspace overrides — grouped by limiter type (model_group, batch, token_count, files, skills, web_search). Useful for keeping gateways and proxies in sync, powering internal alerting against the Usage and Cost API, and auditing workspace configuration. R...

What's new in Claude Code v2.1.119 A shorter list than recent releases but with quietly significant changes. /config settings finally persist to ~/.claude/settings.json and participate in the override chain. --from-pr and the owner/repo#N shorthand now support GitLab, Bitbucket, GitHub Enterprise, and your git remote's host — first-class non-GitHub support. --print and --agent modes now honor agen...

What's new in Claude Code v2.1.118 A meaty release. Vim users finally get visual mode (v) and visual-line mode (V) in the prompt editor. Hooks can now invoke MCP tools directly via a new type: "mcp_tool" action — a real declarative-pipeline unlock. /cost and /stats merge into /usage, and there's a real custom theme system that plugins can ship into. Plus a stricter DISABLE_UPDATES env var, WSL inh...

What's new in Claude Code v2.1.117 A dense release. The headline fix: Opus 4.7 finally computes /context against its 1M window instead of 200K, so sessions stop autocompacting prematurely. Pro and Max subscribers get a default effort bump from medium to high on Opus 4.6 and Sonnet 4.6. Plugin ecosystem gets a real overhaul across dependencies, errors, and marketplace auto-resolve — plus managed-se...

What's new in Claude Code v2.1.116 Performance, security, and developer-UX wins. /resume is up to 67% faster on 40MB+ sessions, MCP startup defers template listing until the first @-mention, /doctor works mid-response, and sandbox auto-allow stops bypassing the dangerous-path safety check. Plus /terminal-setup tuning for fullscreen editor scroll, /reload-plugins auto-installing missing dependencie...

Claude Platform — April 16, 2026 Two announcements for API developers. Claude Opus 4.7 is generally available at Opus 4.6 pricing, but ships with breaking API changes: thinking budgets removed, temperature/top_p/top_k now 400s on non-default values, thinking silently omitted by default, and a new tokenizer. Separately, Claude in Amazon Bedrock opens to every Bedrock customer across 27 AWS regions...

What's new in Claude Code v2.1.113 A structural change under the hood (native binary CLI) combined with five genuine security hardenings — deny-rule wrapper matching, find flag scoping, macOS /private path protection, the dangerouslyDisableSandbox permission prompt, and a real Bash UI-spoofing fix. Plus sandbox network deny-lists, faster /ultrareview, Remote Control parity for /extra-usage and @-f...