My reason for sticking with 2.79b with video to clarify

[Benny_G]

Some off the addons have now a new name and are included by default if you use a recent build : for example take a look to this :

Mesh edit tools 2.8

hi, I’ve been working on rebuilding the mesh edit tools addon. Many changes have been made. Implemented new ui using looptools code: [meshtools_28] Expose multi selection modes vert/edge/face and combinations: [meshtools_28_select] Some built in tools are included, The focus is on insets, extrudes, and tools to help in edit mode: [meshtools_28_show] Currently this addon is in nightly builds in the testing category. Enjoy.