This is the v0.11.0.0 major release of the Monero software, and it is a mandatory update due to the September 15th hard fork, which in turn increases the minimum ring signature size to 5 across the network, bans duplicate ring members in a ring signature, and enforces use of ringCT for all transaction outputs. This release of the software presents a number of major improvements to Monero, as well as a large set of bug fixes.