Dear Community,

we’ve released a new version of our 3.7 maintenance line – 3.7.13.4. Whilst this maintains binary compatibility with its predecessor, it fixes build breakage on systems with boost 1.67, it fixes a bunch of out-of-bound vector accesses (which on some systems triggered bug safeguards which aborted the applications doing them), and it also fixed a bug in how the “Skip Head” block deals with tags. Also, there was a logging bug that we’ve fixed.

My thanks go out to all our contributors, but especially to Cate Miller, Karel Pärlin and Paul wicks, all three first-time contributors to a release. Thanks everyone for the great help!

You can find the release as tag v3.7.13.4 (make sure to verify the GPG signature ;) ), on github under

and

Happy hacking! Marcus

[3.7.13.4] - 2018-07-15

Fixed

Project Scope

• Fix Boost 1.67 linking issue

• Logging: fixed issues where messages weren’t properly written to stdout/stderr due to incorrect strings

gr-analog

• fmdet_cf’s derivative coefficients were wrong.

gr-blocks

• skiphead used to incorrectly handle tags, now properly shifts

gr-digital

• qa_packet_format: Unit test used to potentially lock up due to incorrect conditionals

• clock_recovery_cc, crc32_bb: Accessing the [0] element of an empty vector is UB, even if you don’t use the result afterwards.

gr-fec

• polar_encoder/_common: Fixed multiple out-of-bound accesses due to insufficient vector length checks

gr-filter

• fft_filter, filter_delay: Accessing the [0] element of an empty vector is UB, even if you don’t use the result afterwards.