Dearest most-enduring SDR community to ever roam the galaxy,

the legacy 3.7 release series sees a bug fix release. We had to bump the maint version from 13 to 14, because we fundamentally changed the (pseudo) random number generation – which has the effect that pre-3.7.14.0 flowgraphs use different random scramblers and pilots, amongst other things.

Find the release notes below.

Cheers, Marcus

Release 3.7.14.0

Contributors

• Chris christopher.donohue@gmail.com
• Christoph Mayer hcab14@gmail.com
• Eric Johnson ejohnson73@gmail.com
• gmazilla
• Håkon Vågsether haakonsv@gmail.com
• Josh Morman jmorman@perspectalabs.com
• Marcus Müller mmueller@gnuradio.org
• Martin Braun martin.braun@ettus.com
• Michael Dickens michael.dickens@ettus.com
• rear1019 rear1019@posteo.de
• Ron Economos w6rz@comcast.net
• Ryan Volz rvolz@mit.edu
• Sebastian Müller gsenpo@gmail.com
• Thomas Habets thomas@habets.se

[3.7.14.0] - 2020-02-15

Fixed

Project Scope

• replace remaining calls to thread-unsafe rand with internal random generators

gnuradio-runtime

• don’t give up on looking for configuration files if system directory doesn’t exist
• get_tags_in_range on delay blocks
• premature tag pruning

gr-blocks

• 8 bit WAV file reading
• matrix_multiply no longer wrongly converts complex float to double
• Boost 1.70 compat

gr-digital

• UHD packet example: frame bit fixes
• additive_scrambler count-based reset
• map_bb buffer overflow, thread safety

gr-dtv

• falsely failing assert

gr-fec

• cc_encoder: constraint length > 8

grc

• Ctrl-F unselects blocks (so that “d” doesn’t disable them)

Added

gnuradio-runtime

• XOROSHIRO128+-based PRNG

gr-digital

• additive_scrambler test

gr-uhd

• future UHD compat layer

Changed

Project Scope

• COMPATIBILITY WARNING: Replaced non-threadsafe (s)rand with our own xoroshiro-based PRNG
• Whole tree code reformatting

gr-blocks

• replaced reconfiguring selector with 3.8 backport

gr-channels

• removed unnecessary delay in selective fading model

gr-digital

• COMPATIBILITY: Change of random OFDM pilots
• backport of 3.8 constellation changes

gr-trellis

• COMPATIBILITY: random interleaver: PRNG change -> different interleaver