This program can be use it for create a list of task, each task with its own blend file and Blender version with some settings as:
-Number of threads for rendering
-Python script to run before render
-Scene to render
-Change the output settings, format.
And then render all the task, and select if after the tasks end to hibernate the computer
Also it can register the blend extensions to be opened with a selected Blender version, or start Blender in Debug Mode.
Download for Windows.
Any bug or issue just coment :D