[moonchild]

Odd that they chose lua 5.2. The most popular luas nowadays are 5.1 (the version that luajit implements), and 5.3 (which was for a long time the 'latest and greatest', though it's been superseded by 5.4).

[aeosynth]

5.4 hasn't officially released (it's in the RC stage) so 5.3 is still the latest stable/supported version.