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+---
+layout: post
+title: Released Cyclone Scheme 0.27
+excerpt: This release contains enhancements to our C integration as well as various bug fixes.
+---
+
+Features
+
+- Arthur Maciel added `opaque?` and `opaque-null?` predicates to `(cyclone foreign)`.
+- Added `import-shared-object` to `(scheme eval)` to allow loading a third party C shared library.
+- Allow C compiler/linker options from a library to be expanded via `cond-expand`.
+
+Bug Fixes
+
+- Updated the runtime to avoid a race condition when creating new symbols. Thanks to Skye Soss for the bug report and patch.
+- Prevent the compiler from inlining calls to primitives that open ports, avoiding a range of issues such as an open file operation being inlined across multiple places in the intermediate code. Thanks to Andy Arvanitis for the bug report.
+- Arthur Maciel updated `current-jiffy` to use `clock_gettime`.