Spring is a modification of Far Manager, that uses the Lua programming language instead of the embedded macro-language.

A macro is a Lua-script and its meta-data such as:

• Areas from which the script may be executed
• Keys that initiate execution of the script from those areas
• Prerequisites for the execution of the script
• Run-time flags: EnableOutput and NoSendKeysToPlugins

• Macro recording and playback
• Standard Lua libraries
• LuaFAR libraries ("plugin API")
• Libraries of macro functions ("macro API")
• For plugins: function MacroControl

Since 30 September 2012 this project is merged with Far Manager, and its separate development stopped.