Claude Code 2.1.258

If your Mac is still on macOS 12 (Monterey), Claude Code would not launch at all recently. This was not a case of an old system never being supported: it was a regression, meaning something that used to work got broken by a later change, introduced in 2.1.255. You changed nothing yourself; you just took the update, and the program stopped opening. It is fixed now, and Claude Code starts normally on macOS 12.

Remote and scheduled sessions ran into something similar. You approved a permission request, that approval was sent again, and it could not be applied, leaving a message with no content. Once that empty message went out, the whole session ended with user messages must have non-empty content, and your long wait produced an error. That failure is now fixed: when a re-sent approval cannot be applied, the session no longer collapses.