community.general/changelogs/fragments/9320-fstr-cache-plugins.yml

minor_changes:
  - memcached cache plugin - use f-strings instead of interpolations or ``format`` (https://github.com/ansible-collections/community.general/pull/9320).
  - redis cache plugin - use f-strings instead of interpolations or ``format`` (https://github.com/ansible-collections/community.general/pull/9320).