v3.4.7
Fix issue #20405: Add Duplicate answer group in the validation warning list, Display warning message for all interaction error (#22062)
Milestone 1.6 and 1.7: Added Math Equation Input Interaction. (#9649)
Added Mypy type annotations to the `extensions` directory. (#16083)
Apply prettier 2 (#19862)
Milestone 1.1 (Improve line and branch coverage for the frontend and the backend): Checks to ensure that every backend file has an associated test file (#15625)