MacKinney Batch to CICS 1.6.07 Release Notes
Although MBC 1.6 is not the current release of MacKinney Batch to CICS, there is a support PTF (1.6.07) available that adds support for CICS TS 5.4 to an existing MBC 1.6 environment.
If you are running MBC 1.6, then you need to login and download the MBC1607 fix in order to add support for CICS TS 5.4.
If you are NOT running MBC 1.6, you will need to download MBC 2.0 in order to get support for CICS TS 5.4.