Updated Tailscale 1.30 (markdown)

Tailscale-1.30.md

@@ -1,10 +1,18 @@
 ## All Platforms
-- delete ephemeral nodes immediately if they `tailscale logout`
+- delete ephemeral nodes immediately if tailscaled exits and was using `mem:` state storage
+- indicate whether a subnet router is running in `userspace-networking` or `kernel` mode.
+- send Tailscale client version number in ACME requests (to LetsEncrypt, for example)
+- add a timeout when writing to BIRD socket
+- use DNS-over-HTTPS for Mullvad DNS servers
+- add `tailscale licenses` with link to open source licenses
+- accommodate shared nodes in nginx-auth
+- 
 
 ### Linux
 
 ### Windows
 - notice when group policy entries change and move our NRPT rules between the local and group policy subkeys as needed
+- avoid 2.3 second DNS lookup delay when Smart Name Resolution is enabled by adding MagicDNS names to hosts file
 
 ### macOS
 
@@ -14,5 +22,8 @@
 - Fix Google Stadia, Android Auto, GoPro, and Messages RCS with the VPN active.
 - Allow coordination server URL to be set, for Headscale. Click the Authentication menu three times quickly to enable.
 
+### Synology
+- fix `/dev/net` permissions in `tailscale configure-host`
+
 ### OpenBSD
 - support functioning as a subnet router or exit node using hybrid netstack mode