All Platforms

• update to Go 1.21.4

Linux

• improve throughput substantially for UDP packets over TUN device with recent Linux kernels

Windows

• open menu with a regular click in addition to a right-click

macOS

• don't run taildrop cleanup loop until the first file transfer, avoid spurious security dialog
• implement MDM settings for the macSys app downloadable from pkgs.tailscale.com
• support tailscale update --yes for macSys app

iOS

• show a helpful banner if there are no other devices on the tailnet
• add "Allow Local Network Access" setting when using an exit node
• show info bubble when key expires in < 8 hrs or has expired
• widgets reflect the state of the VPN tunnel more accurately

QNAP

• add tailscale update support