Yes it is available. Here is the response from Cadence support: Regarding 15.7 I would like to point out that it is a major release, with new functionalities. It includes all the fixes that have gone in the previous releases. All the future fixes and enhancements would be targeted centering around 15.7 However we shall still be providing fixes for 15.5.1 . [15.5 has been replaced by 15.5.1] No more fixes would go for 15.5