2026-05-06 SSR2OBS
fix: broken Windows COM port functionality
chg: update built-in satellite antenna PCV corrections file (.atx)
imp: added new manual for SSR2OBS (which is more up-to-date and easier for new users)
(...)

Note: The old manual is still included with this release. As of now,
      it is more comprehensive on some less frequently used features,
	  but it could be partially outdated.

2025-09-16 SSR2OBS
(...)

2024-01-12 NM: GPP_LEAPSEC.DLL
chg: update leapsecond

2024-02-16 NM: SSR2OBS
imp: faster output of RTCM MSM with full SSR correction info only 
new: option -uptime=x.x - startup delay until system uptime >= x seconds

2025-09-16
imp: review of startup procedure with focus on OSR output

Date of expiration:   none, if SSRZ Leap Seconds Metadata Message ZM024 is part of correction stream;
                      else, potential expiration on next leap second event January 2026, if outdated
                      GPP_LEAPSEC.DLL is in use;
					
Remarks: 
Satellite PCV:        Keep the satellite SV PCV correction file updated; otherwise, corrections will 
                      be incomplete.	
Datum Transformation: As the SSR correction stream is produced in the current ITRF epoch, users are 
                      responsible for providing transformation parameters to map from ITRF to the 
					  required datum.
					