Unfortunately they seem to have straight up broken Claude Code either with this release in the backend or the new CC version. Errors about "can't modify thinking blocks" are bricking long-running sessions: https://github.com/anthropics/claude-code/issues?q=is%3Aissu...
In case it helps anyone, in some minor cases I was able to recover and continue with /rewind.
They don't test CC updates before release. The testing is done by their own team using the product or public feedback.
Same. It's not a good look to have happen right when they roll out a new model.
That is part of the charm of working with Claude. Every time they release anything new - all your shit will break.
I found that quitting and restarting cc appears to fix this
Codex cli> claude code
[flagged]
This was happening even on the `stable` branch with 4.7
I managed to get claude to create a recovery script to un-brick sessions, YMMV
https://gist.github.com/robertfw/993dbe8643c4fbdf12005dff2ec...