Clarify React 19 CLI message, minor fixes

Published: December 11, 2025

v4.21.1
Sanity Studio

🐛 Notable bugfixes

  • Fixes suggested upgrade command for deprecated packages to use caret (^) version range instead of exact version
    • Marks React < 19.2.1 as deprecated
  • Fixes a bug where blueprints doctor would incorrectly throw an error when blueprints config files were not present
  • Fixes a regression in v4.20.0 that caused icons in dashboard to miss text styling
  • Fixes an issue where diffs author and timestamp were missing for operations which removed data, for example, changing a title from summer week to summer