v3.2.9
(Celebrating learners' accomplishments) Milestone 1.1: Add end chapter check-mark and confetti (#15589)
Merge branch 'release-3.2.9' of github.com:oppia/oppia into release-3.2.9
Introduce new Donate page (#16605)
Fix #4367 : Prevent null-submission for MathExpressionInput interaction (Upgraded guppy 260da6--->b5055b) (#4753)
(Partially) Fix #2100: add cache slugs. (#2208)
Fixed iframe exploration player (#16711)
Add e2e tests to svg editor rte (#9745)
Adds readme to various folders (#8329)
Create a pip package for Oppia to support Beam jobs (#13938)
Introduce GA4 alongside UA analytics (#16038)
Fix #2255: Remove commons folder and transform toast icons to material (#4898)
Edit .gcloudignore (#16655)
Fix part of #15753: Fix frontend validation for image caption length (#15999)
Fix #8518: Add Security.txt (#8533)
Fixes #16313 and Adds back M1.3 And M1.4 (Blog Integration) (#16323)