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With the upcoming Implementation of IFS Cycle 50r1, this set of defaults is ready to handle the data produced. It is also ready to deal with with the Migration to GRIB2 that will come with IFS Cycle 50r2 in 2026.
Python 3.12 updated with earthkit
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The new versions of the software packages can be selected by using the nov25 tag in modules. For example:
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How to revert to the old versions in case of problems AFTER the update
Users that experience problems with the new default software packages after the update will be able to revert to the old default versions. These can be selected with the commands:
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| Warning |
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Please let ECMWF know if you need to revert to the old version of any of the packages after the update of the defaults has taken place. |
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The new version of the ECMWF Toolbox (ecmwf-toolbox module) is 2025.10.0.0, replacing 2025.04.0.0. This table summarises the changes in the version of the different packages within the bundle:
| Package | Default version | Release notes | Download page | |
|---|---|---|---|---|
| Before | After | |||
| CodesUI | 1.8.1 | 1.8.1 | CodesUI - Change History | CodesUI - Releases |
| ecCodes | 2.41.0 | 2.44.0 | ecCodes Releases | |
| Magics | 4.16.0 | 4.16.0 | Latest News | Magics Releases |
| Metview | 5.25.0 | 5.26.0 | Metview Releases | |
| ODC | 1.6.0 | 1.6.0 | Readme | ODC Releases |
Besides ecmwf-toolbox, the following packages with their corresponding module also see their default changed:
| ecFlow | 5.13.8 | 5.15.0 | ecFlow Releases | |||
|---|---|---|---|---|---|---|
| ecbuild | 3.10.0 | 3.12.0 | ecbuild Releases | |||
| cdo | 2.5.1 | 2.5.3 | https://code.mpimet.mpg.de/projects/cdo/files | |||
| python3 | 3.11.8-01 | 3.11.10-01 | https://docs.python.org/3.10/whatsnew/changelog.html You can see the list of extra Python modules installed with:
| Python Downloads |
Please see the Release notes for full details of the changes implemented in each package.
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