3P: Progress Programmers Pal
An OpenEdge ABL (formerly 4GL Progress) code editor / IDE running on notepad++
3P has a dedicated website, go check it out!
Old releases information can be found here on the website
IMPORTANT MESSAGE
The 3P updater is UNAVAILABLE for all the versions prior to v1.8.1!!!
You MUST install the latest .NET framework (or at least .NET 4.6.2 in order to be able to use the next releases of 3P (v1.8.1 and above)!!!
Related issue : Error 3P.dll is not valid notepad++ plugin / critical error at startup / about .net 4.6.2 requirement