develop
Introduce edits_allowed property (#15396)
M2.1 (Helping learners when they get stuck): Add state migration for new customization_arg catchMisspellings. (#16077)
Fix part of #13820: Adds backend validation for RTE content and translations of exploration state (#16065)
Fix part of #13821: Backend validation for general state interaction. (#15797)
Fix part of #13822: Backend validation for general state (#15796)
Fixes for end to end working between Oppia and Oppia-ml. (#3824)