Please note, there will be no additional updates after 6.14 for the perpetual, standalone version of Lightroom. You should only update to Lightroom 6.14 if you are currently holding a license to our perpetual product. The goal of this release is to provide perpetual customers additional camera raw support, lens profile support and address bugs that were introduced in previous releases of Lightroom.
Adobe Acrobat XI is the final version of Adobe Acrobat to support Windows XP, Windows Vista (unofficially bypassing installation, version X is the last officially-supported version) and OS X versions 10.6-10.8. It is also available for Mac OS X Snow Leopard or later. From there, Lightroom CC 2014 was rolled out, which was equivalent to version 5.4 of LR standalone. With the release of LR 5, Adobe introduced Lightroom CC, which was the first cloud version of Lightroom. From there, it was Lightroom 4.4 that I used the most before Adobe released Lightroom 5. The next stable build I preserved was Lightroom 3.6.