Wizards of the Coast SRD 5.1
Wizards of the coast managed to make a bunch of D&D fans angry with the modifications they were wanting to make to the OGL. But as the dust from the backlash settled they made a move that should be better for the D&D community as a whole.
Moving forward the SRD will be released under a Creative Commons License, this move cannot be taken back later and all of the SRDs released under this will be available for others to use as they please.