pfSense

The expected values do not get added to the rules.debug file so are not applied to pf.

set timeout {  udp.single 60  udp.multiple 300  }

Setting timeouts via the Firewall Optimiazation Options field is still created and applied as expected in 23.01-REL.

set optimization conservative
set timeout { udp.first 300, udp.single 150, udp.multiple 900 }

Applied provided patch and nothing changes. After reboot all works good and timeouts are saves.
So, reboot required after apply patch.

aleksei prokofiev wrote in #note-5:

Applied provided patch and nothing changes. After reboot all works good and timeouts are saves.
So, reboot required after apply patch.

You don't need to reboot, you just need to go to Status > Filter Reload and click Reload Filter. Or you can click Save on System > Advanced, Firewall & NAT Tab.

Applied the patch and it's working fine here even without a reboot.