v3.1-dev: update from dev#4477

Merged

ralfhandl merged 6 commits intov3.1-devfrom

Mar 20, 2025

Commits on Mar 13, 2025

Commits on Mar 18, 2025

reactivate v3.0 schema tests
ralfhandl
committed

Commits on Mar 19, 2025

Remove now obsolete reference to schemas in main
ralfhandl
committed

Commits on Mar 20, 2025