Evergreen 2.12 now requires OpenSRF 2.5 or later; certain functionality will not work if you attempt to run Evergreen 2.12 on OpenSRF 2.4. Evergreen 2.12 recommends PostgreSQL 9.4. The minimum supported version of PostgreSQL is 9.3.

The stock schema upgrade script performs a browse and facet reingest, recalculates bib fingerprints, and remaps metarecords.

This version also adds two new services, open-ils.ebook_api and open-ils.hold-targeter.