REX confirmed this week that all their MSFS products are compatible with the current version of Microsoft Flight Simulator with Sim Update 13.
Just make sure you are using the latest updates of the respectve software and you should be ready to enjoy the following enhancements and services.
REX AccuSeason Advanced Edition MSFS : Modern, feature-rich application containing a large collection of seasonal presets and vegetation configuration options that display seasons globally.
REX Weather Force MSFS : The new metar-based dynamic real-time weather engine with real-time metar data as the foundation, the weather force weather engine provides a more realistic weather experience.
Real Global Airport Textures MSFS : Photo-Based, Global PBR Airport Texture Replacement