Hi all, We have just release Hyperscan v4.5.2 on Github. This is a bugfix release, following v4.5.1 a few small bugs were identified. From the change log: [4.5.2] 2017-07-26 - Bugfix for issue #57: Treat characters between \Q..\E as codepoints in UTF8 mode. - Bugfix for issue #60: Use a portable flag for mktemp for fat runtime builds. - Bugfix for fat runtime builds on AVX-512 capable machines with Hyperscan's AVX-512 support disabled. Regards, Matt.