0.6.1

• Improved suggestions (for when using plutoc with the language server)
• Optimized switch statement code generation (now omits cases leading to default case)
• Fixed producing syntax error when 'case' or 'default' is used outside of switch
• Fixed using 'export' outside of global scope not producing an error
• Fixed some confusing error messages
• Pulled in the latest Lua changes so some Lua bugs are now fixed

0.6.0

• Added <constexpr> attribute to force locals to be compile-time constants
• Added $expr syntax for compile-time evaluation of select functions
• Added export [NAME=VALUE | function | class] syntax
• Added named arguments (name=value in funcargs)
• Added named varargs (...NAME), automatically puts the varargs into a table with the given name
• A subset of Soup is now vendored with Pluto so standard library features that rely on it should now be more viable
• Removed deprecated "pluto_case" and "pluto_default" keywords
• Removed when statement

Enums:

• Added ENUM.ENUMERATOR syntax for named enums
  • Added ENUM CLASS NAME ... syntax to force usage of this syntax
• Added enum reflection for named enums (:names(), :values(), :kvmap(), :vkmap())

Object-oriented programming:

• Added new TABLE(...) syntax (creates new table, sets TABLE as its metatable + __index, calls :__construct(...) if exists)
• Added 'class' statement & expression (similar to table but without need for ',' or ';' after properties and functions)
  • 'class' and 'local class' statements also support extends NAME which sets __parent property and metatable with __index
  • Added static function NAME for use within table constructor/class definition (equal to NAME = function)
• Added 'parent' expression
  • parent.PROP -> self.__parent.PROP
  • parent:METHOD(...) -> self.__parent.METHOD(self, ...)
• Added TABLE instanceof METATABLE operator

Type hints:

• Added 'int' & 'float' type hints (more restrictive than 'number')
• Added 'void' type hint for function return type

Standard library:

• Added utonumber, utostring, & string.uformat
• Added instanceof(TABLE, METATABLE)

For integrators upgrading to Pluto 0.6.0:

• Consider defining PLUTO_COMPATIBLE_NEW, PLUTO_COMPATIBLE_CLASS, PLUTO_COMPATIBLE_PARENT & PLUTO_COMPATIBLE_EXPORT so 'new', 'class', 'parent' & 'export' will not be reserved keywords just yet, instead 'pluto_new', 'pluto_class', 'pluto_parent' & 'pluto_export' can be used.

More detailed documentation can be found here.

0.5.4

• Default arguments now support tables
• Pluto now supports building with C ABI so you can replace Lua's shared library with Pluto's without needing to change the program
• Fixed return before case or default causing a syntax error
• Fixed access violation on lua_close with strings as default parameters

0.5.3

• Default arguments now support compile-time constant variables, unary -, and pseudo-unary +
• Re-added os.remove & os.rename because they originated in Lua and should not have been removed
• Fixed some instances of errors not providing a code snippet and reporting the wrong line
• Fixed enumerators being limited to 32-bit values
• Fixed warning disable/enable being global-only
• Removed if-goto optimisation due to various edge cases where goto is not executed

0.5.2

• Enum statement: Now supports compile-time constant variables when setting value
• Fixed require, dofile, etc. not taking UTF-8 encoded paths on Windows
• Fixed pluto & plutoc not being able to execute files with foreign names on Windows

0.5.1

• Enum Statement: Now supports unary - and pseudo-unary + when setting value
• Replaced locals limit with registers limit so you can have more compile-time constants
• Fixed Pluto's IO functions not taking UTF-8 encoded paths
• Fixed UB when emitting unfinished string error, possibly resulting in an access violation

0.5.0

• Added "for ITERABLE as VALUE" loop
• Added $-strings (string interpolation)
• Added prefix ++ operator
• Added support for binary number literals.
• Added C-style enums
• Added _PSOUP global
• Updated package.path to look for .pluto files in working directory by default
• Deprecated "pluto_case" and "pluto_default" (now "case" and "default", respectively)
• Removed what was deprecated in 0.4.0 (sleep -> os.sleep, os.remove -> io.remove, os.rename -> io.rename)
• Added execution time limit (optional, must be enabled in luaconf.h)
• Added content moderation

Standard Library:

• Added io.makedirs

Standard Library (Soup):

• Added base64
• Added base58
• Added base32
• Added json

0.4.5

• Improved wording of some warning & error messages
• Fixed excessive "duplicate local declaration" warnings
• Cherry-picked some Lua commits, so the following Lua bugs are now fixed:
  • 'break' may not properly close variable in a 'for' loop
  • error message in 'table.remove'
  • 'utf8.codes' accepts spurious continuation bytes
  • Negation in constant folding of '>>' may overflow
  • stack overflow with nesting of coroutine.close

0.4.4

• Added math.rand as an alias for math.random
• Changed unknown type hint to be warning instead of error
• Reverted table.insert optimation due to unexpected behavior
• Some minor tweaks

0.4.3

• Improved most error messages, and vastly improved the internal code for them.
• These reserved tokens can be used as identifiers outside of their functional context: default, case
• Optimized the performance of table.insert. Roughly 3x faster, but still slightly slower than t[#t + 1]
• Pluto can now be built using Sun.