[Robster400]

Yes, that info is on the sources page, with portlegacy=0 added to the config, you see on the sources page,

Stream 1
Source Port: 8000
Legacy Source Port: -1
Password: xxxxxxxxxx
Max Bitrate Allowed: Unlimited
Protocol Mode: v1 or v2

Stream 2
Source Port: 8000
Legacy Source Port: Not specified
Password: xxxxxxx
Max Bitrate Allowed: Unlimited
Protocol Mode: v2

But you are correct, checking the log shows that v1 listening is disabled
2013-10-16 23:29:27 INFO [MICROSERVER] Legacy v1 source support not enabled