...
https://github.com/openedx/public-engineering/issues/32 (Feanil Patel)
This is a simplification to how course content is cached. It should be invisible to all end users.
Some operators may need to run a management command to re-populate the cache:
./manage.py lms generate_course_blocks --all_courses --settings=production
The flag ENABLE_BLAKE2B_HASHING was removed. blake2b hashing is now used for caching instead of the deprecated md4 hashing. After upgrading, it’s possible that performance could be degraded as the cache rebuilds.