0.2.4

Libraries

• [@demhydraz] Performance improvements to eq?
• [@SquidDev] Pattern matching uses = instead of eq? when matching against literals.
• [@demhydraz] Performance improvements to string?, number? and boolean?.
• [@demhydraz] Performance improvements to much of the list library.
• [@demhydraz] Add any type to the check library.

Code generation

• [@SquidDev] Emit trivial and and or statements as their Lua versions (technically in the last release but apparently I forgot to push it).
• [@SquidDev] Emit struct instantiations as their Lua equivalent.

0.2.3

REPL

• Add :search command to find symbols and documentation matching a given pattern.
• Add a "magic" out variable for the value of the last expression

Libraries

• Add drop and take
• Export string and lua/math by default.
• Add many more tests for the stdlib

Code generation and optimisation

• Add a inlining optimisation pass (disabled by default, enable with -O+inline.
• Add a new codegen system, with support for not, and and `or.
• Simplify trivial lamda expressions
• Correctly pack arguments in directly called lambdas
• Don't constant fold functions which returned multiple values.
• Fix code generation issues when calling quoted lists, or expressions involving quoted lists.

0.2.2

• Rewrote the CLI in Urn, adding an improved argument handling system.
• Add optional and type patterns to the pattern matcher.
• Add io library thanks to @CrazedProgrammer.
• Add string/trim to remove all whitespace.
• Add command line argument parser.
• Format bold and italic documentation in the REPL.
• Add more granular system to monitor and control optimisation and analysis passes.
• Optimise the optimiser.

0.2.1

• Add a whole host of list functions, including zip and snoc.
• Add lambda-binding syntax to let and friends, similar to Common Lisp's flet.
• Add a primitive version of QuickCheck, allowing for basic property assertions.
• Add top level unquotes, allowing for arbitrary compile-time execution.

0.2

• Add line mappings and name unmangling when running using the Urn compiler (the --run flag), as well as all compile time code execution and inside the REPL.
• Add for-pairs macro for easier iteration over structs.
• Add a simple benchmarking library, allowing for timing function definitions.
• Remove pair library.

0.1.4

• Add support for module level documentation, allowing for more general documentation about a file.
• Add bindings to the LuaJIT FFI
• Rename quasiquote to syntax-quote, adding a CL compatible version of quasiquote instead.
• Improvements to variable inlining.
• Add a powerful pattern matching library.

0.1.3

Changes

• Don't use ANSI colours when running under Windows command prompt.
• Inline variable accesses, and remove unused variable declarations.

Bugfixes

• Fix erroring on non-string objects.
• Fix running using an absolute path.

0.1.2

Changes

• Add analysis for calling a function with too many arguments.
• Improve native methods emitting, allowing constant folding and reducing the size of file preambles.
• Add a new documentation website

Bugfixes

• Fix Lisp backend not emitting constants.
• Fix several failing tests, meaning string/split and -> now handle all edge cases.
• Fix crash when simplifying nested direct lambda calls.

0.1.1

Really, a convenience release: This lifts the restriction of having to run the compiler inside the compiler tree.

0.1

This is the first preview release of Urn, with a bare minimum of features implemented. In this release:

• Powerful macro system, allowing for arbitrary code execution and generation at runtime.
• Useful macro sets, providing features such as method call chaining, "power asserts" and a tiny testing framework.
• Useful error messages and diagnostics, ensuring your parentheses are always in the right place.
• A primitive optimiser, including constant folding and dead code elimination.
• Documentation generator.