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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog. For information on Aria's versioning scheme and release policy refer to our Release Policy.

[0.9.20251222]

Added

  • Values of builtin types can now be checked for mixin
  • Lists and strings allow wraparound indexing (e.g. foo[-1])
  • shift-equal operators (<<= and =>>)
  • \r is now recognized as a valid escape sequence
  • JSONValue prettyprints

Fixed

  • Multiplying a list or string by a negative integer returns an empty value
  • File.writeln now actually writes a newline
  • REPL input can now contain comments
  • MixinRng.one_of will fail if passed an empty list as input
  • String classes API now supports Unicode
  • Negative timestamps are now resolved correctly by Instant

Changed

  • in match statements, case Foo(blah) will fail if Foo does not have a payload instead of throwing a VM error
  • String.hash will return different values for anagrams

Deprecated

None

Removed

None

[0.9.20251118]

Added

  • Add support for ?? and !! operators to Maybe objects
  • Support for skipping and truncating iterators
  • SipHash support has been added to the standard library
  • Benchmarking utilities have been introduced to measure performance of code snippets
  • List can now be hashed if all its values are hashable
  • Path.glob
  • Initial support for widgets as a code organizing structure
  • Draft language server protocol (LSP) support for better IDE integration
  • It is now possible to write x,y = y,x for swapping values (multiple assignment) and to declare multiple variables in one statement (val x = 1, y = 2;)
  • Map.frequency_map has been added to create frequency maps from iterables
  • Intersection types (TypeA & TypeB) have been introduced

Fixed

  • Map would error if an object's hash returned a negative value; it now handles this correctly
  • It is now possible to write to a captured value without reading it
  • isa now works with mixins

Changed

  • Path.entries() returns an iterator instead of a list for better performance
  • Path operations consistently return Maybe / Result types for improved error handling
  • Iterator uses Maybe instead of .done for its iteration protocol
  • Hexadecimal literals are treated as unsigned integers
  • Aria now lives under the arialang GitHub organization (https://github.com/arialang/aria)

Deprecated

None

Removed

None