Including release notes for 0.18

_posts/2020-06-08-Released-Cyclone-Scheme-0.18.md

@@ -0,0 +1,27 @@
+---
+layout: post
+title: Released Cyclone Scheme 0.18
+excerpt: With this release we proudly present our new package manager, Cyclone-Winds!
+---
+
+The main focus of this release is Arthur Maciel's Cyclone-Winds package manager, the official package manager for Cyclone Scheme! Cyclone-Winds contains a growing list of packages and is an easy way to distribute programs and libraries built using Cyclone.
+
+The `cyclone-winds` binary is installed as part of our [bootstrap](https://github.com/justinethier/cyclone-bootstrap) installation. Alternatively it can be built and installed separately if you already have a copy of Cyclone installed, though version 0.18 or higher is required.
+
+Please visit the [Cyclone-Winds](https://github.com/cyclone-scheme/cyclone-winds) site for more information.
+
+Features
+
+- Added the `(cyclone foreign)` library to make it easier to integrate with C code using the FFI.
+- Arthur Maciel improved how `icyc` handles the "-p" flag, to now read/evaluate all expressions passed.
+
+Bug Fixes
+
+- Added a void type and a new supporting function `(void)`. A void object is also now returned in situations where the return value is undefined: `for-each` and `if` expressions with out an else clause.
+- Allow `open-binary-input-file` and `open-binary-output-file` to be accessible via the REPL.
+- Fix `bytevector?` predicate which was accidentally aliased to `vector?`.
+- Fix `list-copy` to return a non-list object instead of raising an error, per R7RS.
+- Fixed `eqv?` to use R7RS semantics to ensure equality of different instances of the same numeric value. The function was previously just an alias of `eq?`.
+- Support two-argument version of `atan`.
+- Support `start` and `end` arguments to `write-string`.
+- Updated the string comparison procedures (EG: `string=?`) to support more than two arguments.