1.0.4 Stable Public Beta

Mega Man X4 now requires the verified original USA disc before launch, including when every mod is disabled. Incorrect or modified images receive a clear original-disc error rather than failing later on a mod such as Custom Renderer.

Apply undubs, translations, widescreen and other changes through Mods over the original disc. Modified disc images are unsupported. See disc requirements.

Custom Renderer remains enabled by default with Adaptive sizing; 16:9 is available in its Aspect dropdown. The published v1.0.3 package also passes the original-disc widescreen check; the affected player's exact image has not been independently identified.

Windows x64 ZIP. The Linux AppImage remains pending. Both netplay peers must update. Native memory-card saves carry forward; emulator save states are specific to their build.

Validation: all38 Windows production checks pass. Framework identity, strict configuration, native/cached/portable mod preparation checks pass on Linux. The final extracted Windows ZIP accepts original CUE/BIN, launches Adaptive/16:9, rejects changed assets and CUE track layouts with mods disabled, and accepts the original again afterward. Rendered launcher toggles, aspect changes and PLAY handoff also pass. CD Speed, Fast Loading, developer packages and private runtime data are absent.

This is a bounded original-disc validation hotfix based on v1.0.3. Additional stage fixes and fan-subtitled FMV UI work are separate. Full campaign coverage and fresh online/Linux gameplay are not newly qualified. Validation details.

Download the ZIP and extract it to a writable folder. Verify it using the accompanying SHA256SUMS.txt.