# New Amstrad fork core de MiSTer : accuracy improvements + GX4000 / 6128 Plus support

**URL:** <https://forum.cpcwiki.eu/t/new-amstrad-fork-core-de-mister-accuracy-improvements-gx4000-6128-plus-support/582>\
**Category:** News\
**Tags:** fpga\
**Created:** [September 28, 2026, 11:33am UTC](https://forum.cpcwiki.eu/t/new-amstrad-fork-core-de-mister-accuracy-improvements-gx4000-6128-plus-support/582 "2026-09-28T11:33:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![XeNoMoRPH](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/xenomorph/32/28_2.png) [@XeNoMoRPH](https://forum.cpcwiki.eu/u/XeNoMoRPH)\
**Post date:** [September 28, 2026, 11:33am UTC](https://forum.cpcwiki.eu/t/new-amstrad-fork-core-de-mister-accuracy-improvements-gx4000-6128-plus-support/582/1 "2026-09-28T11:33:16Z")

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Here’s a [new release](https://github.com/renaudguerin/Amstrad_MiSTer/releases/tag/v2026.09.27 "Opens in new window") ! core de MiSTer

Changes (Plus/GX4000) :

- Fix Fire & Forget II sky-gradient flicker and music slowdown
- Fix CRTC3 demo

Still investigating : Eerie Forest’s dotted-logo/green left-edge screen glitches

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**Author:** ![Gryzor](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/gryzor/32/7_2.png) [@Gryzor](https://forum.cpcwiki.eu/u/Gryzor)\
**Post date:** [September 28, 2026, 1:12pm UTC](https://forum.cpcwiki.eu/t/new-amstrad-fork-core-de-mister-accuracy-improvements-gx4000-6128-plus-support/582/2 "2026-09-28T13:12:47Z")

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You forgot to say that this is a MiSTer core 🙂