Please note: There is a new webpage for the Migration to GRIB2: Migration to GRIB2 This webpage also includes a section where changes in the parameter encodings for the coming ecCodes versions are documented: Changes in the parameter encodings
New Features/Improvements
[ECC-2340] - GRIB2: v3 and v3.1 for AIFS single and ens
[ECC-2344] - GRIB2: move new Fire parameters to existing paramIds
[ECC-2349] - GRIB2: anomaly and significance parameters
[ECC-2350] - GRIB2: statistical variants of CAMS paramIds
[ECC-2354] - GRIB2: name and version of IFS model components
[ECC-2352] - MARS namespace for stream eest - sub-seasonal statistics
[ECC-2356] - Promotion and conversion support in Variable accessor