v21.2 (git-town#5109)

v21.1 (git-town#5013)

Add links to new pages (git-town#4993)

v20.2 (git-town#4940)

v20.1 (git-town#4883)

v20.0.0 (git-town#4857)

v19.0.0 (git-town#4727)

v18.3.2 (git-town#4692)

v18.3.1 (git-town#4680)

Update links in release (git-town#4677)