...
Hashes for cookies and sessions switched from SHA-1 to SHA-256. To keep multiple server instances able to read each other’s data during the upgrade deployment, IDAs should set the
DEFAULT_HASHING_ALGORITHM
setting to “sha1”. Once the deployment is complete and we’re confident a rollback won’t be needed, this setting can then be removed again. [Changelog entry]DEFAULT_AUTO_FIELD
should probably be set to “django.db.models.AutoField
“ for most repositories to streamline the upgrade, but after upgrading it is recommended to explicitly migrate or declare existing implicit ID fields so this setting can be removed and BigAutoField can be used for new ID fields.