MetaCPAN was upgraded from Elasticsearch version 2 to version 8 this past Monday. As you can imagine, that's quite a jump. Many thanks to @haarg for sorting out most of the compatibility issues on our API side.
If any of your queries have broken, please open an issue at https://github.com/metacpan/metacpan-api/issues or ask in #metacpan on irc.perl.org
Many thanks to Philipp Krenn and Shay Banon of Elastic for their continued support. 馃檹