What probably matters to youSection of the release
Unclear It is not clear exactly which terminals gained or lost the shortcut.
What
Claude Code has a key binding, chat:sendNow, that sends your message straight away when you press Enter while holding a modifier key. The task list has a matching action that sends a task off and opens it.
Whether these are offered used to depend on a fixed list of terminal names. It now depends on whether your terminal is detected as able to send extended key combinations:
under tmux or screen, they are not offered
in Windows Terminal, they need the kitty keyboard protocol, a way for terminals to report more key combinations, to be confirmed
Why
The shortcut and its hint stop appearing in terminals that cannot actually send the modified key press, where pressing it would not work.
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.
Confirmed sinceAnthropic's documentation has since written up chat:sendNow, on Customize keyboard shortcuts.| `chat:sendNow` | Ctrl+Enter, Ctrl+X Ctrl+S | Send your [queued messages](/docs/en/interactive-mode#queue-messages-while-claude-works), and your draft with them, right away. [When Claude Code sends what you queued](/docs/en/interactive-mo…keybindingssee the edit
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear exactly which terminals gained or lost the shortcut.
Anthropic's documentation agreesAnthropic's documentation has since written up chat:sendNow, on Customize keyboard shortcuts.