unbound_1.16.0rc1 fails to start

Installing unbound_1.16.0rc1 over the top of the current install (unbound_1.15.0) it fails when started

29/05/2022 15:32:12 C:\Program Files\Unbound\unbound.exe[12244:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.

29/05/2022 15:38:02 C:\Program Files\Unbound\unbound.exe[1192:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.

29/05/2022 15:40:01 C:\Program Files\Unbound\unbound.exe[9700:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.

With verbosity 4:

[1653835814] C:\Program Files\Unbound\unbound.exe[12340:0] debug: winservice - apply cfg

29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: setup SSL certificates

29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: Adding Windows certificates from system root store to CA store

29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: Completed adding Windows certificates to CA store successfully

29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: winservice - open ports

29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] debug: creating udp6 socket ::1 53

29/05/2022 15:50:14 C:\Program Files\Unbound\unbound.exe[12340:0] error: setsockopt(…, IPV6_MTU, …) failed: Bad protocol option.

Edition Windows 10 Pro

Version 21H2

Installed on ‎04/‎04/‎2022

OS build 19044.1708

Experience Windows Feature Experience Pack 120.2212.4170.0

RayG

Hi Ray,

Was any previous version working and 1.16.0rc1 introduced this issue?

Best regards,
-- George

Hi George,

Yes, Version 1.15.0 works just fine.

Ray

Hi Ray,

The issue with the Windows build seems to be related to newer versions of the cross compiler and not the Unbound code.
We will release the Windows build of 1.16.0 shortly, compiled with a known to work compiler version.
We will look into the issue properly for the next release.

Best regards,
-- George

Hi George,

1.16.0 downloaded and installed and all would seem to be OK.

Thanks

Ray