Claude Code news and updates
9 curated updates from official Claude Code channels since 23 Jul 2026: 5 model · 2 releases · 1 feature · 1 incident. Each item links to the vendor's own post; summaries stick to what the post says.
October 2026
- Claude Code 2.1.299–302: idle compaction; standalone Claude Design closes 14 Dec
Idle 200K+ token chats are now compacted before the one-hour prompt cache expires, and a new notice says standalone Claude Design (claude.ai/design) closes on 14 Dec 2026.
Source: github.com - Claude Code Review is generally available for Team and Enterprise
Reviews now finish about 3× faster (6–10 minutes) with per-repo Quick/Standard/Deep levels; eligible Enterprise orgs can claim at least $10,000 in credits by 15 Jan 2027.
Source: claude.com - Claude Code 2.1.291–296: Haiku 5.5 default, blocking hook failures, sub-agent effort
2.1.293 makes Claude Haiku 5.5 the default Haiku ($0.10/$0.50 per Mtok, 1M context); hooks gain onFailure: "block" and the Agent tool gains an effort parameter.
Source: github.com - Claude Haiku 5.5 launches; Max and Team plans gain monthly API credits
Anthropic calls Haiku 5.5 its cheapest, fastest and most capable small model; Max and Team plans now include monthly API credits for the Claude Platform.
Source: support.claude.com
September 2026
- Claude.ai, Claude Code, Cowork and the API hit by errors and sign-in failures
Impact ran from 7:00 to 7:59 am PT on 29 Sep; sign-in, new chats and Code sessions failed, and some messages sent then may not have been saved.
Source: status.claude.com - Claude Sonnet 5.5 launches as the faster, cheaper partner to Opus 5.5
Sonnet 5.5 is the second model in the Claude 5.5 family, positioned as a faster, lower-cost complement to Opus 5.5.
Source: support.claude.com - Claude Opus 5.5 matches Fable 5.1 on most work at 40% less than Opus 5
The first Claude 5.5 model performs at Fable 5.1's level on most work and costs 40% less to run than Opus 5, per Anthropic.
Source: support.claude.com
August 2026
- Anthropic launches Claude Fable 5.1 and Claude Mythos 5.1
Anthropic calls them the world's most advanced models for coding and knowledge work.
Source: support.claude.com
July 2026
- Claude Opus 5 launches near Fable 5's intelligence at half the price
Anthropic describes Opus 5 as thoughtful and proactive, close to Fable 5's frontier intelligence at half the price.
Source: support.claude.com