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Downloadable from our Releases page.

New tool: codes_split_file. Point to the new confluence tools documentation page.
Example using 8 processes in parallel:
% time grib_set -s date=20171201,shortName=t 1million.grib1 reference.grib
219.394u 0.515s 3:40.00 99.9% 0+0k 0+338784io 0pf+0w

% time ./grib_set_parallel_split.sh 1million.grib1 final.grib date=20171201,shortName=t
376.212u 1.675s 0:51.33 736.1% 0+0k 0+1016416io 0pf+0w

Changes for Version 2.6.0

New Features/Improvements

[ECC-567] - codes_split_file tool
A new tool has been added. It splits an input file (GRIB, BUFR etc) into chunks of roughly the same size. The output files are named input_01, input_02 etc. This is much faster than grib_copy/bufr_copy.

[ECC-592] - BUFR WMO tables 29 to be added to ecCodes
Note: Some keys have been renamed as a result of this change:

New name (from version 29)	Old name
`verticalSoundingProductQualifier`	`tovsOrAtovsProductQualifier`
`bandwidthCorrectionCoefficient1`	`bandwidthCorrectionCoefficient1ForAtovs`
`bandwidthCorrectionCoefficient2`	`bandwidthCorrectionCoefficient2ForAtovs`

[ECC-549] - Create MARS stream for GRIB EFAS data
[ECC-555] - Add verificationYear, monthlyVerificationYear, verificationMonth, monthlyVerificationMonth for monthly streams
[ECC-477] - Redundant error message changing packing from CCSDS to grid_simple
[ECC-547] - Add WMO definition to 2 wave parameters and rename them
[ECC-571] - DWD: corrections to edzw local definitions (newer)
[ECC-574] - Update MARS stream descriptions for esmm and ehmm
[ECC-575] - Add new GRIB fields for lightning
[ECC-577] - Add localYear, localMonth, localDay, localHour, localMinute and localSecond to bufr_dump
[ECC-578] - Long names of GRIB parameters 210007-210010 (aermr07-10) are incorrect
[ECC-580] - Change of parameter name and units: 210064 and 210065
[ECC-581] - Tables 172 and 173: rename parameters and assign shortnames
[ECC-583] - Two new parameters: Water Vapour Flux and Water Vapour Flux Index
[ECC-584] - Update GRIB2 definitions with the latest WMO V20.0.0 code tables/templates
[ECC-585] - Add parameter for 'Fraction of snow cover' with units 'Proportion'

Bug Fixes

[ECC-538] - ecCodes does not honour ECCODES_NO_ABORT
[ECC-550] - Segmentation violation when setting descriptor 236000
[ECC-551] - Standard deviation is shown as NAN
[ECC-556] - BUFR: 'typicalDate' calculation should cater for invalid year in BUFR4
[ECC-557] - class="l5": set mars.step=endStep for streams mnth/edmm/wamo/ewmm
[ECC-558] - Windows - linker error: unresolved external symbol _grib_dumper_class_bufr_simple
[ECC-579] - BUFR nested replication problem
[ECC-582] - bufr_dump -Efortran creates BUFR which differs from input (string value)
[ECC-586] - CRASH: extracting nonexistent BUFR subset with doExtractSubsets
[ECC-589] - Clang ThreadSanitizer error: data race on 'bits_all_one'
[ECC-590] - Clang ThreadSanitizer error: data race on expanded_descriptor_list_push
[ECC-594] - Assertion failed: `ktype == GRIB_TYPE_LONG' in src/grib_expression_class_functor.c