The user guide for installation, configuration, and use of the Pure Storage Plugin for the vSphere Web Client. Note that the remote-based plugin 5.x-based (i.e. the Remote vSphere Plugin) is the best choice since VMware will be EOL'ing support for 4.x-based plugins (i.e. the Local vSphere Plugin).
For new features per version of the vSphere plugin, please refer to the vSphere Plugin release notes.