From: Vadim Godunko on
New version of Matreshka was released. Previous version can't be used
on 32-bit platforms, this one fixes this. Also, new version includes:

- automatic configuration facility; it detects host architecture and
compiler's capabilities to select most suitable of supported
- upgrade of Unicode Character Database to version 5.2.0;
- upgrade of Unicode Collation Algorithm to version 5.2.0;
- upgrade of regular expression engine to support character's
properties from new version of Unicode;
- bug fixes.

Source code and documentation can be found on project's website