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db
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2018-08-14T23:33:58.164985Z
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V 914
## [3.7.13.4] - 2018-07-15

### Fixed
#### Project Scope
- Fix Boost 1.67 linking issue
#### gnuradio-runtime
- 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.

Fix dependancy problem when UHD is not used.

END