Brad Fitzpatrick b3d0ebcca3 ipn/ipnlocal: only send AllowsUpdate if clientupdate feature is linked in ...

Like the earlier RemoteConfig change, gate Hostinfo.AllowsUpdate on
feature.IsRegistered("clientupdate") in addition to the
buildfeatures.HasClientUpdate build-tag const. tsnet binaries don't
import feature/clientupdate even though ts_omit_clientupdate isn't
set, so they shouldn't tell control they can be remotely updated.

Add the previously missing feature.Register call to
feature/clientupdate, document the binary-support requirement on
tailcfg.Hostinfo.AllowsUpdate, and make tsnet's dep test verify it
doesn't depend on feature/clientupdate.

Updates #12614

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: I526ef11f2a4141f5fce161b1f77263324014b5c4

2026-07-09 19:08:05 -07:00

..

clientupdate.go

ipn/ipnlocal: only send AllowsUpdate if clientupdate feature is linked in

2026-07-09 19:08:05 -07:00