MangoHud, the popular open-source overlay for Linux gaming, saw the release of its v0.8.3-rc1 candidate today. This release focuses on stability and compatibility across various graphics APIs and display servers. Key improvements include a fix for Vulkan swapchain image handling, now indexing per-image state by image index rather than acquisition order, which addresses potential rendering issues. For GLX, the update prevents crashes when setting vsync to -1 in Zink and resolves corrupted font textures in certain games. Additionally, the release candidate improves robustness for AMD GPU metrics, particularly by addressing situations where CPU power data might be unavailable and preventing erroneous access to CPU statistics during shutdown. Further fixes include adding a missing HAVE_WAYLAND check for EGL, resolving a race condition in parameters, fixing a double free crash, and ensuring HDR color conversion after configuration reloads.