What probably matters to youSection of the release
What
Trying to restart, or to switch renderer with /tui, while background work is running now points you at /tasks to stop that work instead of only telling you to wait for it.
Evidence
Can't restart while work is running in the background \u2014 wait for it to finish (or stop it via /tasks), then try again.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Added sinceA small documentation edit on Error reference touched a line naming /tui after this was published.These errors come from the `claude` command line and its subcommands, from a command name you submit at the prompt, and from commands such as `/security-review` that gather context by running shell commands before their prompt runs. They a…errorssee the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesA small documentation edit on Error reference touched a line naming /tui after this was published.
Anthropic's release notes agreeFixed /update and /tui refusing to restart while work that survives the relaunch was running
