An aspect of the present invention detects usage, by an application process, of a utility provided by a first version of an operating system, and determines whether a later version of the operating system is incompatible with identical usage of the detected utility. If the usage is determined to be incompatible, the corresponding information on the incompatibility is included in a report. According to another aspect, the determination of compatibility is performed by maintaining data (e.g., in a database) indicating incompatibility information related to a set of utilities, which are incompatible with the second version. The data is examined to determine incompatibility. The features are disclosed as being applied with respect to dynamically linked libraries, dynamically loaded libraries, functions, fonts, etc.