We’re pleased to announce that hydra-head 9.1.0 and 9.1.1 have been released.
Version 9.1.0 brings support for Blacklight 5.10. See the upgrade guide here: https://github.com/projecthydra/hydra-head/releases/tag/v9.1.0
Version 9.1.1 fixes policy based access controls. They were not working in hydra-head 9 due to using incorrect Solr queries.
Thanks to Justin Coyne for the work.