From the post announcing it on Facebook:
"Ponies & Parasprites has been updated with Breezies and Chimera."
A minor revision of the full rules, including the Expanded Content and the two new types.
pp. 1-38: Player's Handbook
pp. 39-53: PiC's Guide
pp. 54-92: Bestiary
pp. 93-119: Librum Arcana
pp. 120-150: Expanded Content
pg. 151: credits