New release

_posts/2017-05-24-Released-Cyclone-Scheme-0.5.1.md

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+---
+layout: post
+title: Released Cyclone Scheme 0.5.1
+excerpt: The main focus of `0.5.1` is performance but this is also the first release to provide installation instructions for both Windows and Mac.
+---
+
+Features
+
+- Thanks to Kashyap for adding build instructions for Windows (MSYS) and Mac!
+
+- Allow `define-c` function definitions to optionally provide an additional non-CPS form of the function. This form is more efficient and will be used by compiled code whenever possible.
+
+- Improved the compiler's CPS optimization phase to eliminate more unnecessary function calls. 
+
+- Modified the GC to allow a given number of "huge" allocations to trigger GC. Previously GC was only triggered when smaller heap regions were below a certain percentage of free memory.
+
+- Compiled code now directly accesses boxed mutable variables instead of using a wrapper function.
+
+- Added command line options to `icyc` for evaluating an S-expression from the command line and for running as a script without the Cyclone banner text.
+
+Bug Fixes
+
+- Prevent potential memory corruption when working with large vectors that cannot be allocated on the stack.