Lua 5.5.0

Lua 5.5.0.

Major release.

First in the 5.5 series.

Main Changes

• Declarations for global variables
• Named vararg tables
• For-loop variables are read only
• Floats printed in decimal with enough digits
• More levels for constructors

New Features

• table.create
• utf8.offset returns final position of character
• External strings (memory not managed by Lua)
• New functions luaL_openselectedlibs and luaL_makeseed

Performance

• Major garbage collections done incrementally
• More compact arrays — large arrays use about 60% less memory
• Dump and undump reuse all strings
• Auxiliary buffer reuses buffer when it creates final string

Other

• lua.c loads readline dynamically
• Static (fixed) binaries for binary chunk memory reuse

Update when you can.