RINEX version 4.02 has been officially released on the IGS webpage: https://files.igs.org/pub/data/format/rinex_4.02.pdf, and also available here:
RIENX 4.02 highlights
The main changes with respect to the previous version are:
- RINEX observations-related updates:
- Update of the Epoch time tagging in Observation files to allow for extra second digits to reach pico-sec resolution
- RINEX navigation messages-related updates:
- Addition of NavIC L1 L1NV Navigation message
- Addition of GLONASS L1OC, and L3OC CDMA Navigation message
- Addition of navigation message subtypes for all navigation record message, and definition of subtypes for the QZSS ION and NavIC ION messages