CDO

• option --chunkspec to specify chunking for dimensions x,y,z,t
• option --print_filename to print name of all output files
• collgrid: Added parameter name and levidx

• setchunkspec - Specify chunking per variable
• showchunkspec - Show chunking specification
• air_density - Air density

• inttime: segfaults on Int16 data since release 2.4.1 [Bug #12138]
• timpctl: Short integer overflow for CDO_PCTL_NBINS>32768
• enable-hirlam-extensions failed since release 2.5.1
• Input: failed with more than one input record

• cinfo: Compact information listed by parameter name

• detrend: failed if missing_value is between 0 and numSteps
• remapcon: env.var. REMAP_AREA_MIN failed since release 2.4.0
• consects/consecsum: wrong result since release 2.4.0 [Bug #12030]

• Added support for non-thread-safe NetCDF4/HDF5 library
• Remapstat: added support for unstructured target grids
• Timselstat: added support for parameter nskip=-1

• diff: added extended check for NANs [Bug #11963]
• setpartabn: convert parameter failed
• ydrunpctl: parameter pm=r8 failed
• remapcon: fixed problem with icon R3B9 target grids

• cmor: has been revised

• option --filter: added support of NetCDF4 filter chains

• setfilter: Set NetCDF4 filter specification
• showfilter: Print NetCDF4 filter specification

• ml2pl: disable extrapolation (Incorrectly enabled in release 2.4.0)
• Compiling failed with NetCDF < 4.8.0 in release 2.4.2 [Bug #11843]

• delattribute: Delete attributes

• processing of NANs failed in 2.4.1

• mergetime: added skip_same_time parameter
• mergetime: added names parameter (union|intersect)
• Yearstat; added complete_only parameter
• showatttribute: changed output format

• timmaxidx: Index of time maximum
• timminidx: Index of time minimum
• seltimeidx: Select timestep by index
• setprojparam: Set proj_param attribute
• dminute<stat>: Multi-day by the minute statistics

• Yseasstat: failed with seasonal data since release 2.2.0
• eca_csu/eca_cfd: fixed stack memory error which occurs with clang option -Os [Bug #11790]
• minc/maxc: fixed wrong handling of missing values

• Changed to C++20
• Add FDB (Fields DataBase) support (status: experimental)
• Remapweights: Use environment variable REMAP_MAP3D=1 to generate all mapfiles of the first 3D field with varying masks
• pack: add support to read pack parameters from file
• select: allow negative numbers for parameter levidx to select level indices from the end

• pressure - pressure on full-levels
• pressure_half - pressure on half-levels
• delta_pressure - pressure difference of half-levels
• gheight_half - geopotential height on half-levels

• after: change computation of geopotential height from full to half levels [Bug #11346]
• expr: var statement failed
• gradsdes: fix integer overflow in map file
• Arith: fill mode for infile2 doesn't work with pipes [Bug #11733]
• rotated pole mapping failed with negative north_pole_grid_longitude attribute [Bug #11661]

New features:

• Add option --shuffle: Specify shuffling of variable data bytes before compression (NetCDF)
• packed NetCDF arrays are stored unpacked for all operators which modify the data
• DCW regions: add support for states (e.g. dcw:USAK for Alaska)
• expr: added function gridindex() (grid cell indices)
• expr: add function cdoy() (day of year) and cdpy() (days per year)

New operators:

• gridcellindex: Get grid cell index from lon/lat point
• timfillmiss: Temporal filling of missing values
• vertfillmiss: Vertical filling of missing values
• Add module Ymoncomp - Multi-year monthly comparison (operators: ymoneq ymonne ymonle ymonlt ymonge ymongt)

Changed operators:

• remapscon: obsolete operator, use remapcon instead
• remapcon2: rename to remapscon2
• gencon2: rename to genscon2

Fixed bugs:

• expr: internal functions with two constant arguments failed in release 2.2.1

• remapping failed in release 2.2.0, if the data contains different masks
• Module Ymonarith: failed with more than one variable in release 2.2.0
• median: add support for missing values
• Ymonstat: set default timestat date to LAST