The code comments for initializeUnorderedBulkOp() and initializeOrderedBulkOp() need to be swapped.

https://github.com/mongodb/mongo-cxx-driver/blob/legacy-1.1-dev/src/mongo/client/dbclientinterface.h#L1643

The unordered is described as ordered and vice versa. Resulting in the doxygen auto generated class reference page for dbclientinterface.h to be reversed for the two methods mentioned:

http://api.mongodb.org/cxx/current/classmongo_1_1_d_b_client_base.html#a159e9f9511f52f2c159b4e1ba82069bc