Python 3.4
Micropython, an embedded version of Python 3.4. Only includes standard libraries.
Julia
Julia 1.04. Only includes standard library currently.
Golang
Golang 1.12. Only includes runtime library currently.
Ruby
Version 2.1.2 of MRuby. Auto-imports standard libraries.
C/C++
Clang compiler 8.0.1 with C and C++ standard libraries.
Perl
Perl 5 with standard libraries.
OCaml
OCaml 4.10.0 with standard libraries.
PHP
PHP 7.4.5-dev with standard libraries.