Claude Opus 4.5 arrives in Claude Code alongside the new Desktop app; Pro users can purchase extra Opus 4.5 usage; Plan Mode now executes more precisely.
Changes
9
Total Changes (vs Average)
0.5×
Version Type
Patch
Release Focus
Mixed
Days Since Prior Release
3
Release # This Month
#15 of 18
Bug Fix Ratio
22%
Post-Release Edits
+1−1
Change Category
Ecosystem Impact
Key Themes
3Opus 4.5 Model Launch|1Claude Code for Desktop|3Plan Mode & UX Refinements|2Stability Fixes
May Help If You've Noticed
You wanted to use Opus 4.5 but couldn't access it directly in Claude Code
You've hit usage limits and want to keep working with the latest model
Plan Mode felt imprecise or stopped before fully completing a task
You prefer a desktop app over running Claude Code from the terminal
Usage limit messages were confusing or hard to interpret