« Prev | Next » Is my license backwards and forward compatible? ANSWER Forward compatibility will only work within one release. For example, a 8.3 version license will function for any of the 8.3 version with service pack, such as 8.3SP1. Backwards compatibility depends on the version of FlexLM used. Active HDL 6.x series license are compatible back to version 5.2. Active-HDL 8.x series license is backwards compatible with Active-HDL 7.x. Previous article Next article