When you open a CC 2014 project file in a newer version of Premiere Pro, the software will prompt you to save a converted copy of the project. It leaves your original CC 2014 file completely untouched, while upgrading the timeline structure to work with the modern engine. Be aware that some legacy offline effects or third-party plug-ins used in 2014 might need to be replaced or re-linked.
This isn't a typical story prompt, but I can certainly frame the "history" and "legacy" of for you. Adobe Premiere Pro Cc 2014 Download
Windows 7 (64-bit) with Service Pack 1, Windows 8 (64-bit), or Windows 8.1 (64-bit) When you open a CC 2014 project file