This errata rewrites section B12:
B12 Determining the order of play within each stage
Each game year is comprised of six stages from C1 to C6. During all stages but C4, the players may act simultaneously. During stage C4, however, the players must act in "low crown order", in which each player announces the lowest crown number of any card he holds. The player with the lowest moves first, followed by the second lowest, etc. The treasure player, however, must move last.
This adds an optional rule to D1 Treasure Tents
D1 Treasure Tents
Optional rule: Each treasure tent is worth 10 instead of 25. (The value of the treasure tents is historical, however, having tents worth 25 can be unbalancing to the game).
This adds an optional rule to E3 Pillaging, plundering, sacking
E3 Pillaging, plundering, sacking
Optional rule: When raiding colonies, players with a low crown number below 50 are allowed to derive one gold for pillaging a size one colony, or two gold for a size two colony, or three gold for a size three colony, even if the colony has no profits. This gold is taken from the coffers of the owning player, and is available only if the owning player has assets. This rule offsets the disadvantage of moving early in the turn, before any colonies have acquired gold through trading. It may be visualized as rewarding those with enough experience to locate where the rich merchants are hiding.
So, that is it so far, as Phil has not posted them offically, take them with a grain of salt...