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+layout: post
+title: Released Cyclone Scheme 0.4
+excerpt: Support is now available for bignums and integer overflow.
+---
+
+- Added a new bignum type to support exact integers of practically unlimited size.
+- As part of the bignum changes, modified the code for exact integer arithmetic to detect overflow.
+- Added documentation for the [C API](http://justinethier.github.io/cyclone/c-api/modules.html).