UDP stream GQRX 2.5.3

[David ONeill]

Upgraded from  GQRX 2.2 (installed via apt-get using Ubuntu 14.04 repos) to 2.5.3 using new PPAs and apt-get. Had a few errors along the way, but got all resolved and GQRX functioning as advertised....  EXCEPT

Have been using GQRX to record our local Cruisers Net on VHF channel 68 and then uploading to the Web. UDP stream is piped to sox to encode as mp3 file using bash command

nc -l -u 7355 | sox  -r 48k -t raw -e s -b 16 -c 1 -V1 - /media/500gig-ext4/cruiser-net/$(date '+%Y%m%d').mp3

While this worked fine in 2.2 producing a file  named "YYYYMMDD.mp3, In 2.5.3 it produced a null file with no data.
Searching this group produced a thread about this issue and the fact that the gnu-radio version shipping out of the new PPAs seems to be streaming in IPV6 format. A bit of research on  netcat reveals the additional switch to recognize the UDP stream ...  -6

New bash call to record stream (in 2.5.3) is

nc -6 -l -u 7355 | sox  -r 48k -t raw -e s -b 16 -c 1 -V1 - /media/500gig-ext4/cruiser-net/$(date '+%Y%m%d').mp3

Hope this saves someone else some aggravation. in the future. Have some other specific questions about this particular use of GQRX but will post again after some more searching of this group