As of May 2017, the most current version of Web Services is 1.4.17124.1 and the most current version of the RELO plug-in is 1.4.6339.27291. 

Releases for both Web Services and the RELO plug-in are tentatively scheduled for release on a quarterly basis. For more information on new features please see the release page.

Note: Blackbaud recommends, for the best user experience, to operate on the most recent version of both Blackbaud Web Services and the RELO plug-in at all times with the most up-to-date functionality. For more information on updating to the most recent version please see How to Install or Update the Luminate Online Marketing Plug-in and/or Blackbaud Web Services for The Raiser’s Edge.