This isn't really a new bot per se. It's probably a new iteration of "Tartanian7" who won the NL portion of the 2014 Computer Poker Competition.
From the Computer Poker Competition 2014 Participants Page...
"Tartanian7 plays an approximate Nash equilibrium strategy that was computed on Pittsburgh's shared-memory supercomputer, which has a cache coherent Non-Uniform Memory Access (ccNUMA) architecture. We developed a new abstraction algorithm and a new equilibrium-finding algorithm that enabled us to perform a massive equilibrium computation on this architecture.
The abstraction algorithm first clusters public flop boards, assigning each cluster to a blade on the supercomputer. These public clusters are computed by clustering using a distance function based on how often our abstraction from last year grouped hands together on the flop with different sets of public cards. Within each cluster, the algorithm then buckets the flop, turn, and river hands that are possible given one of the public flops in the cluster, using an imperfect-recall abstraction algorithm. We did not perform any abstraction for the preflop round.
Our equilibrium-finding algorithm is a modified version of external-sampling MCCFR. It samples one pair of preflop hands per iteration. For the postflop, each blade samples community cards from its public cluster and performs MCCFR in parallel. The samples are weighted to remove bias.
Our agent also uses a novel reverse mapping technique that compensates for the failure of CFR to fully converge and to possibly overfit the strategies to the abstraction."