• Tech Dev NotesTech Dev Notes
Apps
  • App lookup
  • Compare apps
Charts and rankings
  • App charts
  • App rankings
Screens and icons
  • iOS and Android screens
  • App Store screenshots
  • App icons
Build data
  • Tool releases
  • App tech stacks
  • Developers
Tools
  • X feature flags
  • Grokipedia
  • Blog
  • Follow on X
Skip to content
Claude Code

Anthropic · CLI

Claude Code 2.1.190

2.1.187→2.1.190·June 24, 2026 at 2:29 AM UTC

Patch release with minor refinements to built-in prompts and two new internal feature flags.

Changelog

  • [changed] Updated wording in several system prompts, including plan mode instructions, focus mode behavior, context management guidance, and tool rejection messages.
  • [changed] Adjusted phrasing around ambient context handling and how the agent should respond when the user sends a follow-up while work is in progress.

Models & prompts

No changes to available models or default model selection. The embedded system prompts received small wording updates for clarity around plan mode constraints, focus mode output, and task completion reporting.

Under the hood

  • Added two new internal Statsig feature gates (tengu_saffron_credits_only_tiers and tengu_saffron_picker_dim) for ongoing experimentation.
  • Standard version and platform binary updates across all supported architectures.

Upgrade notes

No special steps required.

Older release← 2.1.187Newer release→ 2.1.191
All Claude Code releases →

© 2026 Tech Dev Notes

RSSAboutAPIPrivacyTermsSitemap@techdevnotes