This is the last release to support the following operating systems. Tailscale releases after 1.42 will no longer install on these operating systems, though we expect to maintain forward compatibility for 1.42 with future releases for at least two years.
Windows 7, Windows 8, Windows Server 2008 and Windows Server 2012
macOS 10.13 High Sierra, macOS 10.14 Mojave.
All platforms
update internal DNS handling to better support mixtures of global and private DNS servers
add a tailscale serve reset to clear current serve config
Linux
fix SSH login on platforms which lack getent
Windows
Note: this release switches to a new application signing cert, good through 2025.