Luau bytecode similarity to 5.1 luac

[FaultyPine]

I am looking at transferring some code that used lua 5.1 to use luau, and I'm curious if the bytecode produced by luau_compile is the same as what luac would produce.
I know luau is backward compatible with 5.1 in terms of scripts, but I'm not sure if that also applies here. Reason being, there's some code that parses the 5.1 luac bytecode, and I'm curious if that might need to be changed for luau.
https://www.lua.org/manual/5.1/luac.html

[vegorov-rbx]

The bytecode produced by Luau is completely different from Lua.

[FaultyPine]

Gotcha. Thanks!