Today I published a new version of the RibbonLibrary to Github and updated the zipped file on the Community Download page.
The main changes to this new version of the RibbonLib has been improvement to the performance when adding controls/groups to custom tab, groups and split-/dropdownbuttons.
You will mainly notice a performance improvement if you have an application with many controls.
I had @David Wilson? to give it a run and he could see and performance improvement from 30 secs to 17 secs when loading his MapBasic application with more than 700 controls.
You can see a complete list of changes to the entire Common Library here: https://github.com/PeterHorsbollMoller/mbLibrary/commits/master