Targeting iOS 5.1

[Ben Rubinstein]

We've got some first generation iPads, which can't be updated past iOS 5.1. I 
think I could find useful roles for them around the office, if I could build 
to them.

The essential https://livecode.com/docs/9-5-0/faq/faq/ doesn't go back as far 
as 5.1. But I know that LiveCode could in the past build to these machines - 
some of the apps I built in the past are still on them, though sadly since 
they were built with developer provisioning profiles they've expired! So I'm 
guessing that the compilers of the above table just felt it wasn't worth going 
that far back in time.

Does anyone know what the latest versions of LiveCode and Xcode (and MacOS) 
are that I can use to target iOS 5.1?

Many thanks,

Ben