New release

_posts/2021-08-16-Released-Cyclone-Scheme-0.32.0.md

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+---
+layout: post
+title: Released Cyclone Scheme 0.32.0
+excerpt: Added support for Alpine Linux and made several improvements to the garbage collector.
+---
+
+Features
+
+- Initiate major garbage collections faster after allocating a huge object (larger than 500K). This allows the system to reclaim the memory faster and keep overall memory usage low for certain workloads.
+- Cyclone will no longer memoize pure functions by default.
+- Added build option `CYC_PTHREAD_SET_STACK_SIZE` to allow Cyclone to specify a thread stack size rather than using the OS default. EG:
+
+     make CYC_PTHREAD_SET_STACK_SIZE=1 libcyclone.a
+
+Bug Fixes
+
+- @nmeum fixed `(scheme repl)` to flush the output port prior to writing the prompt, guaranteeing the prompt is written at the correct time. 
+- Fixed `fxbit-set?` to properly handle negative values of `i`.
+- Avoid unnecessary renaming of identifiers when the interpreter performs macro expansion.
+- When allocating a large vector we now guarantee all vector elements are initialized before the major collector can trace those elements. This avoids the potential for a race condition which could lead to a segmentation fault.
+- Ensure atomic objects are properly traced by the major garbage collector.
+