This is a service release with just a single fix in EMF Validation (which moves to v1.12.2) for a compilation issue under Photon and later (see bug #559767).
Only EMF Validation is modified in this release.
The corresponding update sites are:
- EMF Validation 1.12.2: https://download.eclipse.org/modeling/emf/validation/updates/releases/R202008210805/
- EMF Transaction 1.12.0: https://download.eclipse.org/modeling/emf/transaction/updates/releases/R201805140824/
- EMF Query 1.12.0: https://download.eclipse.org/modeling/emf/query/updates/releases/R201805030653/