"There is an idea floating around that uBlock Origin is a lesser
branch relative to uBlock.
The current reality is that there are two branches, not an
official one and a lesser one. I keep developing my branch the
same way and in the same spirit I have since the beginning of
uBlock in June 23, 2014, so in substance uBlock Origin is the
original uBlock." - Raymond
Hill
As of May 2015, "uBlock Origin" continues to be actively
developed and maintained by founder and lead developer Raymond
Hill, but he has withdrawn his support for "uBlock", citing
"serious incompatibilities in the spirit of the project". The
"uBlock" version of the software has seen little development
since.