Learn old REW before new 4.0?

[Element]

I recently downloaded the earlier 3.29 version of REW. I haven't run it yet, I am still reading the help manual to familiarize myself with its' operation and capabilities. Should I continue with this or switch right away to the newer version? ( I haven't used an RTA before.) Should I uninstall the earlier version before installing the new? Thanx, Nige.

[basementjack]

Switch to the New version, it is much easier than the old one.

[Sonnie]

It will overwrite the old version upon the new version install.