An intermediary certificate for LetsEncrypt expired today.
https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/
This has caused validation issues with older systems that are not verifying
the new way. One of these is sadly our beloved trac.osgeo.org
So if you try to log into
Dear OSGeo Colleagues,
OGC recently held its 120th Member Meeting in association with the Singapore
Geospatial Festival (the events were virtual). A summary of activities underway
in OGC from this meeting are available in the slides here:
https://portal.ogc.org/files/?artifact_id=99067