Which stock firmware versions can VNISH be installed on ?

ATTENTION: Check the stock firmware date. Which stock firmware versions can VNISH be installed on using toolkit:
February 2024 and Below and from  December 2024 and newer.

Which stock firmware versions CANNOT be installed on VNISH:
March-November 2024 inclusive and from September 2025 and newer.
September 2025 and later.

Amlogic (a113d) control boards with firmware from september 2025 and newer cant be downgrade using sd image.
Instructions for unlocking AML control boards to install VNISH firmware: UNLOCK-AML  

if you have BITMAIN firmware from March 2024 till december 2024 and you cant find stock update file before september 2025 you can downgrade the stock firmware date using recovery image for your model and control type, download: bitmain firmware stock