Index: trunk/BNC/CHANGELOG.md
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--- trunk/BNC/CHANGELOG.md	(revision 10947)
+++ trunk/BNC/CHANGELOG.md	(revision 10955)
@@ -4,5 +4,7 @@
 - ADDED: L1C/B (RINEX code: '1E') in QZSS Signal ID Mapping
 - ADDED: Minimum Elevation parameter to BNC's RINEX Editing & QC feature [(#195)](https://software.rtcm-ntrip.org/ticket/195)
-- ADDED: GLONASS-M yaw-fixed attitude model for the APC/CoM offset applied when saving SP3 files, reducing along-track/cross-track errors near the orbit noon/midnight points [(#210)](https://software.rtcm-ntrip.org/ticket/210)
+- ADDED: Possibility to select how satellite attitude is modelled when converting Antenna Phase Center (APC) corrections to
+Center-of-Mass (CoM) positions required for SP3 output. Three options are available: (1) Computed (default): BNC applies its own kinematic attitude model: GPS noon/midnight turn manoeuvres (Kouba 2009/2015, Bar-Sever 1996), GLONASS yaw-fixed mode (Dilssner et al. 2011), and
+Galileo / BDS orbit-normal mode switching (Kouba 2017, Dai et al. 2015, Steigenberger et al. 2018). (2) Nominal: a simplified, continuous Sun-pointing model is used without any manoeuvre modelling. (3) SSR: the yaw angle transmitted in the SSR phase bias message is used directly, if present for the satellite and epoch.  [(#210)](https://software.rtcm-ntrip.org/ticket/210)
 - FIXED: BNC is now able to work with com ports with higher numbers, e.g. COM11 or COM17  [(#205)](https://software.rtcm-ntrip.org/ticket/205)
 - FIXED: Handling of ionospheric constraints [(#220)](https://software.rtcm-ntrip.org/ticket/220)