Question of availability of emulator of earlier version of Ubuntu

[Chris Green]

On Sat, May 15, 2021 at 07:51:26PM +0800, Bret Busby wrote:
> Hello.
> 
> An emulator; wine, is available for emulating (maybe only earlier
> version(s) of) MS Windows, to provide for running applications that
> run on only MS Windows, to run on Linux.
> 
> My wife has a computer that has Ubuntu 12.04 installed on it.
> 
> She will not upgrade the operating system, because she has an
> application on it, that runs on 12.04, and not on later versions.
> 
> So, I am wondering whether an emulator is available, for 20.04, or,
> better, for 21.04, that will emulate 12.04, to allow applications that
> will not run on versions later than 12.04, to run on it.
> 
Virtualbox?

-- 
Chris Green