The links below provide online snapshots of final documentation for previous version.
Documentation v5.3.1
Documentation v5.3.0
Documentation v5.2.2
Documentation v5.2.1
Documentation v5.2.0
Documentation v5.1.4
Documentation v5.1.3
Documentation v5.1.2
Documentation v5.1.1
Documentation v5.1.0
Expand the link below to download previous versions of documentation, in .pdf format.