cyclone/_posts/2021-01-03-Released-Cyclone-Scheme-0.24.md

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post	Released Cyclone Scheme 0.24	Happy New Year! This release fixes bugs related to type checking of vectors/records and prevents two segmentation faults in the runtime.

Bug Fixes

• Sean Lynch fixed a bug where record type predicates do not check the length of the target before checking if the vector is actually a record.
• Fixed vector? to no longer return true for instances of record types.
• Do not call eval from the runtime if (scheme eval) has not been imported. Instead we now raise a Scheme error in this case which prevents the possibility of a C segmentation violation. Thanks to Arthur Maciel for the bug report.
• When allocating very large vectors the object used to fill such a vector may not be transported to the heap. This was a nasty bug that could lead to random memory corruption. Fixed the minor garbage collector to properly track and transport these objects to prevent the possibility of memory corruption.