[keycloak-user] Custom SPI Deployment v4.3.0

Hiya I've checked the release document but nothing stands out .. Has anything changed in the way SPI are deployed in keycloak 4.3.0 Final? As part of the image build we'd copy a number of jars in the keycloak/providers/ directory (event logs, prometheus metrics, a custom authenticator etc) which in 4.2.1 is working fine, but in v4.3.0 is doesn't appear to find anything. Rohith