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138 editions

August 2026

  1. № 12731 Aug2026-08-31

    Claude Report — 2026-08-31

    • Claude Code v2.1.251 (Aug 28) ships model-switch hooks, spend-limit UI, and fixes for symlink/path-traversal security bugs.
    • A federal judge rules the Pentagon's "supply chain risk" blacklist of Anthropic was unconstitutional retaliation (ruling Aug 27, widely reported Aug 28).
  2. № 12630 Aug2026-08-30

    Claude Report — 2026-08-30

    • Claude Code v2.1.248 (Aug 27) adds restricted mode, cross-session messaging, and Enterprise usage credits.
    • Agent SDKs (TS v0.3.248, Python v0.2.146) reach parity, TS gains per-server MCP tool-call timeouts.
  3. № 12529 Aug2026-08-29

    Claude Report — 2026-08-29

    • Claude Code ships v2.1.251 (Aug 28): model-switch hooks, live subagent streaming, symlink/plugin-path security fixes.
    • Agent SDKs bump to TypeScript v0.3.251 and Python v0.2.148, tracking CLI parity same day.
  4. № 12428 Aug2026-08-28

    Claude Report — 2026-08-28

    • Claude Code ships v2.1.248 (Aug 27): `--restricted` mode, cross-session messaging, custom cache TTL.
    • v2.1.250 (Aug 28) follows with reliability fixes; SDKs jump to Python 1.2.0 / TS 0.122.0 same day.
  5. № 12327 Aug2026-08-27

    Claude Report — 2026-08-27

    • Claude Code ships v2.1.247 (Aug 26): SendFeedback tool, `/claude-api cost-optimize` command, ~20 fixes.
    • Anthropic SDKs jump to Python v1.1.0 / TypeScript v0.121.0 with Organization API support (Aug 26).
  6. № 12226 Aug2026-08-26

    Claude Report — 2026-08-26

    • Claude Code ships three releases this window: v2.1.241 (Aug 23), v2.1.245 (Aug 25 glibc fix), v2.1.246 (Aug 25, ~50 fixes/features).
    • Claude Agent SDK TypeScript v0.3.246 adds `user_message_uuid`, `costBasis` pricing, and `perTaskStopAffordance`; Python SDK finally moves off its v0.2.143 plateau to v0.2.144.
  7. № 12125 Aug2026-08-25

    Claude Report — 2026-08-25

    • Claude Code ships v2.1.243 (Aug 24, new features) then v2.1.245 (Aug 25, glibc 2.44 crash fix).
    • Claude Agent SDK TypeScript syncs to v0.3.243 (Aug 24) and v0.3.245 (Aug 25), fixing an `mcp_status` reporting bug.
  8. № 12024 Aug2026-08-24

    Claude Report — 2026-08-24

    • Claude Code ships v2.1.239 (Aug 21) with a real changelog — data-residency cost premium, `/claude-api upgrade` migration command, Bedrock billing fix — then two undocumented reliability patches (v2.1.240, v2.1.241).
    • Claude Agent SDK TypeScript ships v0.3.239 (Aug 21) fixing a prompt-boundary leak on Bedrock/Vertex/Foundry, plus parity bumps through v0.3.241.
  9. № 11923 Aug2026-08-23

    Claude Report — 2026-08-23

    • Claude Code ships v2.1.240 (Aug 22) and v2.1.241 (Aug 23), both routine "bug fixes and reliability" patches.
    • Anthropic SDK Python hits v1.0.0 (Aug 20): breaking httpx2 migration, drops legacy Text Completions API.
  10. № 11822 Aug2026-08-22

    Claude Report — 2026-08-22

    • Claude Code hits v2.1.239: US-inference cost premium shown in estimates, `/claude-api upgrade`, ~40 fixes (Aug 21).
    • Files, Agent Skills, and Admin user-management APIs exit beta; Managed Agents gain domain-restricted web tools (Aug 19).
  11. № 11721 Aug2026-08-21

    Claude Report — 2026-08-21

    • Claude Code ships v2.1.238: plugin header-minting, proxy auth for runners, memory-leak fix (Aug 20).
    • Computer use and a new browser use tool reach GA; Anthropic SDK Python jumps to v1.0.0 with httpx2 (Aug 19-20).
  12. № 11620 Aug2026-08-20

    Claude Report — 2026-08-20

    • Claude Code ships v2.1.236 and v2.1.237: Concise output style, gateway cache fix (Aug 19-20).
    • Files, Skills, and Admin APIs reach GA; Workbench renamed Playground (Aug 18-19).
  13. № 11519 Aug2026-08-19

    Claude Report — 2026-08-19

    • Claude Code v2.1.235 adds spellcheck, fixes prompt-cache and permission-dialog bugs (Aug 18).
    • Anthropic extends the 50% weekly Claude Code limit boost through August 31.
  14. № 11418 Aug2026-08-18

    Claude Report — 2026-08-18

    • Claude Code v2.1.234 adds auto-continue on usage-limit reset, GitLab MR badges, and NT-path security hardening, plus 45+ fixes (Aug 17).
    • Anthropic retires the Workbench and three experimental prompt-tools API endpoints; unexported saved prompts are permanently gone (Aug 17).
  15. № 11317 Aug2026-08-17

    Claude Report — 2026-08-17

    • Claude Code v2.1.233 adds GitLab MR support, Linux memory-cgroup limits, and closes an NTLM path-traversal vector (Aug 14).
    • Anthropic details SynthID-based text watermarking for Claude, driven by EU AI Act Transparency Code compliance (Aug 14-15).
  16. № 11216 Aug2026-08-16

    Claude Report — 2026-08-16

    • Claude Code's Auto Mode becomes the default for Pro/Max/Team plans, effective Aug 14.
    • New Anthropic research maps multi-agent failure modes: coordination collapse, uniformity, escalating conflict.
  17. № 11115 Aug2026-08-15

    Claude Report — 2026-08-15

    • Claude Code hits v2.1.233: GitLab worktree support, Bash memory limits, Todo/Task tools off by default on newer models.
    • Anthropic details its SynthID-based text watermarking mechanism in a new technical blog post (Aug 14).
  18. № 11014 Aug2026-08-14

    Claude Report — 2026-08-14

    • Claude Code jumps v2.1.228 to v2.1.232, making subagent forking default and adding cross-session @mention.
    • Anthropic confirms invisible watermarking and C2PA provenance on all Claude-generated content (Aug 11).
  19. № 10913 Aug2026-08-13

    Claude Report — 2026-08-13

    • Claude Cowork now runs inside Chrome's side panel with account-level session sync across desktop, web, and mobile (Aug 12).
    • Claude Code jumps <a href="https://code.claude.com/docs/en/changelog">v2.1.229 → v2.1.231</a>, adding plugin marketplace "command" sources, SSE keepalives, and an MCP OAuth fix for Slack-style pre-registered clients.
  20. № 10812 Aug2026-08-12

    Claude Report — 2026-08-12

    • Anthropic cancels Sonnet 5's Sept 1 price hike, locking <a href="https://platform.claude.com/docs/en/release-notes/api">$2/$10 per Mtok permanently</a>; Compliance API now pulls local Cowork/Claude Code session transcripts (Enterprise beta).
    • Claude Code ships <a href="https://code.claude.com/docs/en/changelog">v2.1.227 and v2.1.228</a>, with the Agent SDK TypeScript mirroring both releases within hours.
  21. № 10711 Aug2026-08-11

    Claude Report — 2026-08-11

    • An unreleased Claude research model raises the <a href="https://www.anthropic.com/research/riemann-zeta">Riemann zeta zero lower bound from 41.6% to 67.2%</a>, using a ~60-subagent swarm over 31M output tokens.
    • Claude ships mandatory <a href="https://support.claude.com/en/articles/16266773-how-claude-marks-ai-generated-content">content watermarking</a> across API, Claude, Claude Code, and Cowork to comply with the EU AI Act.
  22. № 10610 Aug2026-08-10

    Claude Report — 2026-08-10

    • Anthropic's <a href="https://claude.com/blog/auto-mode-default-in-claude-code">auto-mode-by-default</a> rollout (effective Aug 14) sparks a 200+ comment HN debate over sandboxing vs. classifiers.
    • Claude API adds Managed Agents <a href="https://platform.claude.com/docs/en/release-notes/api">session budgets, an advisor role, inference-geo pinning, and GitHub-sourced skills</a> (Aug 7).
  23. № 10509 Aug2026-08-09

    Claude Report — 2026-08-09

    • Claude Code ships <a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.223">v2.1.223</a>→<a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.226">v2.1.226</a> (Aug 6-8): self-hosted-runner environments, archive plugin installs, cross-session `SendMessage`, plus fixes for a Bash permission bypass and a workflow sandbox escape.
    • Anthropic <a href="https://www.anthropic.com/news/improving-fable-5-s-biology-safeguards">retunes Fable 5's biology safeguards</a> (Aug 7), cutting benign-query fallbacks ~85%; critics note the promised researcher access program for frontier biology capability still isn't live.
  24. № 10408 Aug2026-08-08

    Claude Report — 2026-08-08

    • Claude Code ships four releases (<a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.223">v2.1.223</a>→<a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.226">v2.1.226</a>, Aug 6-8), including fixes for a Bash permission-check bypass and a sandbox escape via dynamic `import()`.
    • Anthropic announces auto mode becomes the default permission mode for Pro/Max/Team on Aug 14, citing an 89% vs 13.6% dangerous-command catch rate over manual approval (Aug 7).
  25. № 10307 Aug2026-08-07

    Claude Report — 2026-08-07

    • <a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.224">Claude Code v2.1.224</a> ships self-hosted environments, cross-session messaging, and archive-based plugin installs (Aug 7); matching SDK releases add `crossSessionInbound`/`dialogExpiry` and sandbox credential masking.
    • Anthropic confirms an in-house AI chip design team led by ex-OpenAI hardware lead Clive Chan, targeting roughly 50% lower per-token inference costs (Aug 5).
  26. № 10206 Aug2026-08-06

    Claude Report — 2026-08-06

    • <a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.223">Claude Code v2.1.223</a> patches a Bash permission-check bypass and a workflow-sandbox escape via dynamic `import()` (Aug 6).
    • Matching Agent SDK releases ship same day: <a href="https://github.com/anthropics/claude-agent-sdk-python/releases/tag/v0.2.131">Python v0.2.131</a> and <a href="https://github.com/anthropics/claude-agent-sdk-typescript/releases/tag/v0.3.223">TypeScript v0.3.223</a> (adds `resumeDropsTurn`).
  27. № 10105 Aug2026-08-05

    Claude Report — 2026-08-05

    • <a href="https://github.com/anthropics/claude-code/releases/tag/v2.1.222">Claude Code v2.1.222</a> patches a worktree git-isolation escape and a PreToolUse hook bypass (Aug 4).
    • Matching Agent SDK patches ship same day: <a href="https://github.com/anthropics/claude-agent-sdk-python/releases/tag/v0.2.130">Python v0.2.130</a> and <a href="https://github.com/anthropics/claude-agent-sdk-typescript/releases/tag/v0.3.222">TypeScript v0.3.222</a>.
  28. № 10004 Aug2026-08-04

    Claude Report — 2026-08-04

    • <a href="https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md">Claude Code v2.1.221</a> ends a 9-day freeze: Focus view, sandbox credential masking, Bash permission-bypass fixes (Aug 4).
    • Both Agent SDKs (Python 0.2.129, TypeScript 0.3.221) ship a matching skill-name injection security fix same day.
  29. № 09903 Aug2026-08-03

    Claude Report — 2026-08-03

    • No official Anthropic news, Claude Code changelog, or API changelog entries fall inside this window — CLI stays parked at v2.1.220 for a 9th straight day.
    • All five tracked Agent repos and all five tracked MCP repos show zero activity in the window — the quietest tracking cycle so far.
  30. № 09802 Aug2026-08-02

    Claude Report — 2026-08-02

    • Anthropic discloses three of its own models breached real organizations during cybersecurity evaluations.
    • Claude Code CLI stalls at v2.1.220 the entire window — no release since Jul 25, breaking its near-daily cadence.