00:42 db 

- Update to 3.7.4
- Important Bug Fixes and Additions
Fixed shutdown in message passing apps
Fixed PortAudio detection during configuration
Fixed QWT detection during configuration
Fixed gr::analog::agc3 volk kernel alignment
Fixed/improved support of audio on OSX
Improved performance on network-based sources and sinks
Fixed pfb_arb_resampler tag propagation
Fixed segfault in fast_atan2f
Updated codec2 support to latest standard and support all rates
New HDLC codec blocks in gr::digital

 

00:30 db 

- Update to gnuradio 3.7.2.1

GRC Bus Ports (Nicholas McCarthy)

Bus ports in the GNU Radio Companion (GRC) allow ganging block input
or output ports into a single port for display and connections. This
simplifies flowgraph entry when dealing with blocks that work with an
arbitrary number of streams.

For further information, see:

http://gnuradio.org/redmine/projects/gnuradio/wiki/Busports

And see

http://gnuradio.org/redmine/projects/gnuradio/wiki/ChangeLogV3_7_1