Yes, there are two different batches of Blades.

The first batch had 2BB blade grips, Black servos and Black 4-in-1

The new batch has 3BB blade grips, S75 servos, and a new improved clear 4-in-1

The new model has the obvious 3BB improvement, the servos are faster, and the new 4-in-1 has a MUCH better gyro.