Mintty: Cursor does not blink in Tmux after v2.9.0

[fengyichui]

Cursor does not blink in Tmux after v2.9.0, and v2.8.5 is good. I experience this problem under cygwin.

[mintty]

The culprit is the CSI escape sequence ESC[?12l which is supported since 2.9.0, following xterm.
It is included in the terminfo "cnorm" sequence to reset the cursor. Somebody probably put it in there on purpose.

Actually, behaviour is identical in xterm; this is not a mintty issue, so I'm marking it invalid.
A workaround is already available: include option SuppressDEC=12 in your config file.

[fengyichui]

oh, thanks

[mintty]

Actually there is one possible workaround that I've now implemented:
Blinking cursor mode (DECSET 12) effectively overlays blinking cursor style (DECSCUSR) so that DECRST 12 does not reset blinking but revert to the previous blinking style.

[mintty]

Released 3.0.1.