Many bugfixes and improvements are available: https://confluence.ecmwf.int/display/ECC/Latest+news (Regarding Bug 846257: Still not officially supported on Python 3.10, apparently, but unclear if it would fail for us. Upstream seems to be aware <https://github.com/ecmwf/eccodes-python/actions/runs/2636211100>, so support for 3.10 should hopefully happen one of these months.)