Adds a new track for release candidates. Supports querying by track in
version and updating to RCs in update for supported platforms.
updates #18193
Signed-off-by: Will Hannah <willh@tailscale.com>
If any profiles exist and an Authkey is provided via syspolicy, the
AuthKey is ignored on backend start, preventing re-auth attempts. This
is useful for one-time device provisioning scenarios, skipping authKey
use after initial setup when the authKey may no longer be valid.
updates #18618
Signed-off-by: Will Hannah <willh@tailscale.com>
Adds a setter for proxyFunc to allow macOS to pull defined
system proxies. Disallows overriding if proxyFunc is set via config.
Updates tailscale/corp#30668
Signed-off-by: Will Hannah <willh@tailscale.com>