Back in September, we announced that the F-Droid ecosystem is moving fully to
YAML formats. That means the old
.txt custom metadata format as well as
the JSON metadata format will be entirely removed from all the tools, like
fdroidserver. The upcoming 2.0 release of fdroidserver will only
.yml metadata files.
Now is the time to convert! Thanks to the hard work of @uniqx and others, it is easy:
$ fdroid rewritemeta --to yml
.json formats will only be available in fdroidserver
1.1.x releases from here on out.