Index: trunk/BNC/CHANGELOG.md
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--- trunk/BNC/CHANGELOG.md	(revision 10534)
+++ trunk/BNC/CHANGELOG.md	(revision 10535)
@@ -1,3 +1,10 @@
 # Changelog
+## 2.13.1 (2024-0?-??)
+- FIXED: obs types from skl file can be used now to write them into RINEX version 3 AND 4 observation files as configured
+- FIXED: **Bug in IGS SSR Epoch Time (BDS and GLO)**, which is defined as follows: Full seconds since the beginning of the week of continuous time scale with no offset from GPS, Galileo, QZSS, SBAS, **UTC leap seconds from GLONASS, -14 s offset from BDS**
+- ADDED: decoder string 'ZERO2FILE': Using this, BNC allows to by-pass its decoders and directly save the input in daily log files
+- CHANGED: decoder string 'ZERO': means that the raw data are forwarded only
+
+
 ## 2.13.1 (2024-04-30)
 - FIXED: Health status of Galileo satellites is now determined by the combination of HS, DVS and SISA [(#174)](https://software.rtcm-ntrip.org/ticket/174)