Releases on June 13th, 2021 and before

npm
fomantic-ui on Node.js NPM 2.8.8-beta.275
dockerhub
bitnami/postgresql on Docker Hub 12.7.0-debian-10-r25
github
linuxserver/docker-prowlarr on GitHub nightly-0.1.0.452-ls26
dockerhub
linuxserver/prowlarr on Docker Hub nightly-version-0.1.0.452 nightly-0.1.0.452-ls26 arm64v8-nightly-version-0.1.0.452 arm32v7-nightly-version-0.1.0.452 amd64-nightly-version-0.1.0.452 arm64v8-nightly-0.1.0.452-ls26
dockerhub
hotio/prowlarr on Docker Hub nightly-9452bf9 nightly-0.1.0.452
dockerhub
hotio/prowlarr on Docker Hub nightly-9452bf9-291-linux-arm-v7 nightly-9452bf9-291-linux-arm64 nightly-9452bf9-291-linux-amd64
dockerhub
bitnami/postgresql on Docker Hub 9.6.22-debian-10-r24
dockerhub
hotio/prowlarr on Docker Hub nightly-708a99f nightly-0.1.0.451
dockerhub
hotio/prowlarr on Docker Hub nightly-708a99f-290-linux-arm64 nightly-708a99f-290-linux-amd64 nightly-708a99f-290-linux-arm-v7
Maybe you can find something interesting in this list