From 6542a00ab04d85c1157b6e4b44b33184071b0569 Mon Sep 17 00:00:00 2001
From: Jonathan Nobels <jnobels@gmail.com>
Date: Wed, 27 Aug 2025 09:45:31 -0400
Subject: [PATCH] tailcfg: add mac-ui-v2 node capability (#16940)

updates tailscale/corp#29841

Adds a  node cap macOS UIs can query to determine
whether then should enable the new windowed UI.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
---
 tailcfg/tailcfg.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tailcfg/tailcfg.go b/tailcfg/tailcfg.go
index d2125684d..6383af486 100644
--- a/tailcfg/tailcfg.go
+++ b/tailcfg/tailcfg.go
@@ -2405,6 +2405,9 @@ const (
 	CapabilityDebug              NodeCapability = "https://tailscale.com/cap/debug"                 // exposes debug endpoints over the PeerAPI
 	CapabilityHTTPS              NodeCapability = "https"
 
+	// CapabilityMacUIV2 makes the macOS GUI enable its v2 mode.
+	CapabilityMacUIV2 NodeCapability = "https://tailscale.com/cap/mac-ui-v2"
+
 	// CapabilityBindToInterfaceByRoute changes how Darwin nodes create
 	// sockets (in the net/netns package). See that package for more
 	// details on the behaviour of this capability.