Following the libPNG fix, I think YoYo really needs a sprint or two dedicated to extensions, API upgrades and related documentation. Reasons: The runtimes for Flash and Spine are way out of date, suffer from serious performance issues and constantly get flak from people who use them. The Android extension ecosystem is falling apart at the seams with constant compile/lint errors. The tutorials for extension development covers only string/real return values and limited callback support on iOS/Android, but nothing beyond that. Advertisement and API integrations are becoming obsolete on several exports, but little action has been taken to update them. Users are constantly told to implement features themselves as extensions, yet there is no documentation on how to access the window/layout, audio stream, drawing surfaces or the sandbox file system from an extension. Additional data types have been added to GMS since 1.3, but still only strings and reals are supported. Extensions are fundamentally important for developers who need to monetize from their work, do licensing work for integrations and add features that don't fit YoYo's use case assumptions. If YoYo still wants GMS 1.x to be treated as a professional development platform, these issues should be addressed ASAP.