Copy message now says when copying may not have worked

When you select text in Claude Code, it can copy it using OSC 52, a code that asks your terminal to put text on your clipboard. Not every terminal supports this.

The message shown after copying used to always say the text was sent via OSC 52. In some cases it now says it couldn't copy and tells you to select with a certain key held, then use your terminal's own Copy command. The colour of the message also changes depending on the case.