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 BNC VERSION 2.12.8 (06.05.2019)
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    CHANGED (03.05.2019): Transformation parameters from ITRF2014 into DFREF91
    CHANGED (30.04.2019): Transformation parameters from ITRF2014 into ETRF2000
    CHANGED (26.04.2019): GLONASS ephemerides validity is now up to 2 hours.
                          After that, they will be marked as outdated.
    CHANGED (10.04.2019): Check with respect to wrong observation epochs
    FIXED   (29.04.2019): Bug with respect to GLONASS upload
    FIXED   (26.04.2019): Small Bug in NMEA output

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 BNC VERSION 2.12.7 (03.04.2019)
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    ADDED   (21.03.2019): Updates regarding RINEX Version 3.04
    ADDED   (28.02.2019): Lock time in seconds as an optional feed engine output
    ADDED   (27.09.2018): Possibility to request a user and password
                          detected sourcetable
    ADDED   (19.09.2018): Two more polynomial coefficients of the SSR clock correction
                          message and one more parameter to decribe the SSR URA
    ADDED   (11.12.2017): Decoding of receiver descriptor in MT 1033
    ADDED   (27.11.2017): Satellite health check
    ADDED   (26.10.2017): IRNSS support in RINEX QC
    CHANGED (06.07.2018): Parameters for transformation of orbit and clock corrections
                          from ITRF 2014 into ETRF2000 and DREF 91,
                          no updated parameters for NDA83 available, hence deleted
    CHANGED (28.06.2018): Allow 10 Hz observation data processing and re-sampling
                          harmonization of BNCs re-sampling applications
    CHANGED (23.03.2018): SSR SBAS and BDS satellite IDs with respect to the proposal
    CHANGED (28.09.2017): Transformation of orbit and clock corrections into ETRF2000,
                          NDA83 or DREF91 is done temporarily via ITRF2008
    FIXED   (29.03.2019): Bug in NMEA checksum
    FIXED   (25.03.2019): Bug in RINEX file concatention
    FIXED   (05.09.2018): Bug in RTCM3 ephemeris message for QZSS
    FIXED   (29.08.2018): Bug in RTCM3 ephemeris message for BDS and SBAS
    FIXED   (28.06.2018): RINEX version 3 filenames for re-sampled files
    FIXED   (11.06.2018): Bug in reqc ephemeris check
    FIXED   (18.05.2018): Bug in RINEX file concatenation
    FIXED   (18.05.2018): Bug in ephemeris upload
    FIXED   (29.03.2018): Bug in ephemeris check
    FIXED   (05.02.2018): Bug in latency check
    FIXED   (13.12.2017): Galileo geocentric gravitational constant is corrected
    FIXED   (17.11.2017): Encoding/decoding of all missing parameters in MT 1020
    FIXED   (23.10.2017): Bug in RTCM3 MSM Decoder
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 BNC VERSION 2.12.6 (26.09.2017)
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    FIXED   (25.09.2017): GPS SSR Orbit IOD has to be GPS IODE, not IODC
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 BNC VERSION 2.12.5 (30.08.2017)
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    CHANGED (29.08.2017): RTCM message number for BDS is updated
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 BNC VERSION 2.12.4 (10.04.2017)
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    CHANGED (15.02.2017): SIRGAS2000 transformation parameters adjusted to IGb14
    CHANGED (10.04.2017): Transformation parameters for ITRF2005 to GDA94 removed
    CHANGED (10.04.2017): Transformation parameters for ITRF2008 to SIRGAS95 removed
    CHANGED (10.04.2017): Transformation parameters for ITRF2014 to GDA2020 added
    FIXED   (10.04.2017): Minor bugs to prevent some irregular crashes of BNC
--------------------------------------------------------------------------------
 BNC VERSION 2.12.3 (05.09.2016)
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    ADDED   (01.09.2016): Number of allowed SSR biases is enlarged, some future
                          GLONASS signal and tracking mode identifier are added
    ADDED   (08.08.2016): Some informations about the data source is added as
                          comment within the header of RINEX navigation files
    ADDED   (21.07.2016): Frequency specific signal priorities are added for
                          RINEX version 3 to RINEX version 2 conversion
    ADDED   (29.06.2016): Consideration of provioder ID changes in SSR streams
                          during PPP analysis
    CHANGED (28.07.2016): Small adaptations in qwtpolar sources to allow a
                          successful comilation of BNC on a Rasperry Pi
    CHANGED (21.07.2016): Default signal priority list
    CHANGED (08.06.2016): Weighting factor for GLONASS phase observations
                          is now enlarged
    CHANGED (27.05.2016): RINEX 2.11 ephemeris output for an unknown
                          transmission time is set to 0.000000000000e+00
    CHANGED (24.05.2016): The real satellite visibility is considered, if the
                          expected observations are computed in RINEX QC
    FIXED   (12.08.2016): Check regarding wrong observation epochs is done during
                          latency check as well to prevent erroneous latencies
    FIXED   (08.06.2016): Map generation from sourcetable entry
    FIXED   (02.06.2016): the approach how to wait for clock corrections
                          in PPP mode, which was well proven in BNC verson 2.11
                          is re-implemented
    FIXED   (30.05.2016): Some NMEA components in PPP output are fixed:
                          time stamp is now UTC, hDop value instead pDop value

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 BNC VERSION 2.12.2 (18.05.2016)
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    ADDED   (18.05.2013): Expected observations in RINEX QC
    ADDED   (12.05.2016): Limits for spherical harmonics/degree order extended
    FIXED   (12.05.2016): Wrong RINEX v2 header line excluded

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 BNC VERSION 2.12.1 (21.04.2016)
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    FIXED   (21.04.2016): RINEX v2 file naming for observation files
    CHANGED (21.04.2016): Release number is now part of BNC version

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 BNC VERSION 2.12.0 (19.04.2016)
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