is format binary not allowed?

It seems in one of the recent updates this format type isnt allowed anymore, was this intentional and if so is there an equivalent that should be used?

Start by identifying the recent validation change that stopped accepting the binary format and reproduce the behavior with an affected OpenAPI document. Trace the format validation rules and compare them with the supported equivalents, then confirm whether the restriction was intentional and capture the expected outcome in a focused test or issue resolution.

Written by the indexing model from the issue text.