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Notification urgency on X11

Feature ID: notification-x11-urgency. Type: feature.

Manual tests: just probe notification-x11-urgency opens this feature's scenarios.

Browse under Window and desktop / Notifications and progress. A scenario may exercise related features; its existence does not establish support.

Terminal compatibility

Missing records mean unknown. as-of identifies the assessed version or revision, not the first release to support a feature.

TerminalSupportAs ofNotes and evidence
AlacrittyUnknownUnversionedNo assessment recorded.
Apple TerminalUnknownUnversionedNo assessment recorded.
ConPTY (conhost)UnknownUnversionedNo assessment recorded.
ContourUnknownUnversionedNo assessment recorded.
DomTermUnknownUnversionedNo assessment recorded.
footUnknownUnversionedNo assessment recorded.
GhosttyUnknownUnversionedNo assessment recorded.
iTerm2UnknownUnversionedNo assessment recorded.
kittyUnknownUnversionedNo assessment recorded.
KonsoleUnknownUnversionedNo assessment recorded.
minttyUnknownUnversionedNo assessment recorded.
mltermUnknownUnversionedNo assessment recorded.
PuTTYUnknownUnversionedNo assessment recorded.
RevenantSupportedgit:87fdc41407fe2a096bd7f5d59456bfe61b7b80f9XUrgencyHint is set for notifications received while unfocused and cleared on focus-in. Every other WM_HINTS field is preserved, repeated requests are idempotent, and failed hint updates remain retryable.

Checked 2026-09-11.

test source

RLoginUnknownUnversionedNo assessment recorded.
stUnknownUnversionedNo assessment recorded.
tmuxUnknownUnversionedNo assessment recorded.
rxvt-unicodeUnknownUnversionedNo assessment recorded.
VTEUnknownUnversionedNo assessment recorded.
waystUnknownUnversionedNo assessment recorded.
WezTermUnknownUnversionedNo assessment recorded.
Windows TerminalUnknownUnversionedNo assessment recorded.
xtermUnknownUnversionedNo assessment recorded.
xterm.jsUnknownUnversionedNo assessment recorded.