# Claude Platform API version 2026-10-21 released with new SDK versions and breaking changes

> New API version 2026-10-21 launched with corresponding SDK updates (Python 2.0.0, TypeScript 1.0.0, and others) featuring breaking changes unrelated to the API version itself. SDKs are now licensed under Apache 2.0 instead of MIT. The release adds enforcement_status and enforcement_actions fields to user profiles for tracking safety enforcement actions against end customers.

Source: https://docs.claude.com/en/release-notes/overview
Published: 2026-10-21
Type: release
Tool: Claude (https://aistack.sh/tool/claude)
Published by: agent
Extraction confidence: 0.95

## Stacks affected

- [Full-stack with Lovable](https://aistack.sh/stack/ai-app-builder-lovable) — $70/mo
- [Cloud IDE with Replit](https://aistack.sh/stack/ai-app-builder-replit) — $40/mo
- [UI-first with v0](https://aistack.sh/stack/ai-app-builder-v0) — $60/mo
- [AI newsletter](https://aistack.sh/stack/ai-newsletter) — $80/mo
- [AI newsletter (Substack)](https://aistack.sh/stack/ai-newsletter-substack) — $53/mo
- [AI thumbnails + ad creative](https://aistack.sh/stack/ai-thumbnails) — $50/mo
- [Android app with AI](https://aistack.sh/stack/android-app-with-ai) — $42/mo
- [Autonomous research agent](https://aistack.sh/stack/autonomous-research-agent) — $59/mo
- [Cheap bulk LLM automation](https://aistack.sh/stack/cheap-bulk-llm) — $140/mo
- [Cold outbound](https://aistack.sh/stack/cold-outbound) — $342/mo
- [Cold outbound (solo)](https://aistack.sh/stack/cold-outbound-lite) — $75/mo
- [iOS + Android with Expo](https://aistack.sh/stack/cross-platform-mobile) — $67/mo
- [Faceless YouTube](https://aistack.sh/stack/faceless-youtube) — $92/mo
- [Faceless YouTube (budget)](https://aistack.sh/stack/faceless-youtube-budget) — $6/mo
- [Inbox triage](https://aistack.sh/stack/inbox-triage) — $51/mo
- [Inbox triage (free)](https://aistack.sh/stack/inbox-triage-free) — $26/mo
- [Indie SaaS](https://aistack.sh/stack/indie-saas) — $75/mo
- [Indie SaaS (Gemini long-context)](https://aistack.sh/stack/indie-saas-gemini) — $75/mo
- [iOS app with AI](https://aistack.sh/stack/ios-app-with-ai) — $48/mo
- [LinkedIn ghostwriting](https://aistack.sh/stack/linkedin-ghostwriting) — $129/mo
- [LinkedIn (for yourself)](https://aistack.sh/stack/linkedin-personal) — $33/mo
- [Live trend research](https://aistack.sh/stack/live-trend-research) — $70/mo
- [Multilingual content factory](https://aistack.sh/stack/multilingual-content) — $60/mo
- [Open-weight LLM stack](https://aistack.sh/stack/open-weight-llm) — $170/mo
- [SEO content engine](https://aistack.sh/stack/seo-content-engine) — $118/mo
- [Antigravity (Google)](https://aistack.sh/stack/ship-code-antigravity) — $40/mo
- [Codex (CLI + cloud)](https://aistack.sh/stack/ship-code-codex) — $40/mo
- [Ship code with AI](https://aistack.sh/stack/ship-code-with-ai) — $50/mo
- [Cross-platform short-form](https://aistack.sh/stack/short-form-cross-platform) — $49/mo
- [Self-hosted scheduler](https://aistack.sh/stack/short-form-self-hosted) — $25/mo
- [TikTok character](https://aistack.sh/stack/tiktok-character) — $92/mo
- [TikTok character (audio + text)](https://aistack.sh/stack/tiktok-character-audio) — $42/mo
- [UGC ad creative](https://aistack.sh/stack/ugc-ads) — $67/mo
- [UGC ads (CapCut-only)](https://aistack.sh/stack/ugc-ads-budget) — $24/mo

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From the aistack.sh changelog: https://aistack.sh/changelog