These are maintanance (AKA bugfix) releases for Environmental Visual Effects, AKA EVE. You can read more about it (assuming you don't know what it is) at the previous maintainers thread here (Thanks @Waz!):
Some important FAQ to start us off:
1.) Why "Maintanance Releases?"
A.) Because people needed this updated and no one else was available to do so. I really really didn't need another project on my plate with being a full Kopernicus dev, and make no mistake, this is the bott