As I understand it there is no plan for the immediate future.
The 32 bit version still runs on Windows.
Don't know about Macs.
On BSD and Unix you need to make sure to set the compiler/linker for 32 bit emulation.
But any 64 bit processor should run 32 bit programs if you build it right.
An updated version would be good, it would be easier if there was 64 bit support.
Everybody wants you to use "protected code" these days, I don't know what is happening with Assembly or other low level languages.