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The January 2021 release of our software provides many new features, improvements and fixes!

Table of Contents



ecCodes, the heart of GRIB and BUFR handling, brings performance improvements, latest WMO GRIB/BUFR tables, contributions from users and several smaller features/bug fixes in version 2.20.0.
Please note that ecCodes' Python 2 interface is no longer being developed. Users are strongly advised to migrate to Python 3.
Also the pip package name has changed to 'eccodes'. Please use this command to install the ecCodes Python bindings:


  • Memory leaks have been found and fixed. 


Metview 5.10.2 brings a number of fixes for performance and stability, including:


  • added png driver keyword arguments to setoutput('jupyter') to control output size in notebooks
  • added write(filename) method for classes Fieldset, Geopoints, GeopointSet, Bufr and NetCDF
  • added ability to construct a Fieldset from a list of Fieldsets, e.g. Fieldset([f1, f2, f3])

Metview is built at ECMWF with all the versions of our libraries listed in the table below, and all are included in the Metview Bundle


The software versions of this release are available on all ECMWF computer systems as "new" versions. These versions are also available on conda and PyPi. If you encounter any issues please feel free to send feedback to