Tokina released firmware update version 03 for its Tokina atx-m 23mm f/1.4, atx-m 33mm f/1.4, and atx-m 56mm f/1.4 lenses. You can download the updates here. It is unclear what this update addresses, but it came out in December.
Tokina ATX-M 85mm f/1.8 FE:
B&H Photo / Amazon
Tokina atx-m 23mm f/1.4: B&H Photo
Tokina atx-m 33mm f/1.4: B&H Photo
Tokina atx-m 56mm f/1.4: B&H Photo