EOS version for E64 with 1 MB flash RAM

I currently have EOS 3.00b on my EMU E64 - is it possible to upgrade to anything higher? The sampler only has 1 MB of flash RAM and to install 4.x it seems 2 MB is necessary.
tectonic wrote:The sampler only has 1 MB of flash RAM and to install 4.x it seems 2 MB is necessary.