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The October 2020 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, new parameters, contributions from users and several smaller features/bug fixes.
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:


  • a major code clean-up has reduced the number of dependencies. The Boost library and Python are not required to install Magics anymore.
  • fix issue with logging that was degrading observation plotting speed when used from Python
  • fix issue in python when passing single element array.


Metview brings several new features and functions, such as:


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


CodesUI, ECMWF's standalone examiner for GRIB and BUFR data, adds:


The software versions of this release are available on all ECMWF computer systems as "new" versions. Versions on conda should be available in the coming days. If you encounter any issues please feel free to send feedback to