Sol3 (sol2 v3.0) - a C++ <-> Lua API wrapper with advanced features and top notch performance - is here, and it's great! Documentation:

A multi-platform support c++11 library with focus on asio (asynchronous socket I/O) for any client applications.

Bare libuv bindings for lua

C++ reflection library with Lua binding, and JSON and XML serialisation.

Lua binding to libcurl

Zig bindings for the Lua C API

Lua libraries for graphics and audio programming

cpgf library

C++ to LUA binding tool in a single header file.

A wrapper around MoonSharp that allows easy development of moddable Unity games

Lua binding to ZeroMQ

Haskell bindings to Lua, an embeddable scripting language.

Lua bindings for OpenGL

Lua bindings for Nuklear

LUA to C++ Binding Library "lua_tinker" expand for c++11/14 and lua 5.3

Utilities and bindings for writing Neovim plugins in Rust

Lua bindings for Curses

Lua Binding for Qt5

Lua bindings for GLFW

Lua binding to libuv