IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

An image forming apparatus includes an extracting unit, a verifying unit, and a memory. The extracting unit extracts a form from image formation data related to an image formation instruction. The verifying unit verifies a verification target version of a module to be compatible in a case where a difference between a first image formed by using the module of a predetermined version in accordance with the form extracted by the extracting unit and a second image formed by using the module of the verification target version in accordance with the form extracted by the extracting unit is within a permissible range and verifies the verification target version of the module to be incompatible in a case where the difference between the first image and the second image is not within the permissible range. The memory stores a verification result obtained by the verifying unit.