• 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