Hi all, We've just pushed the Hyperscan 4.1.0 to the master branch on https://github.com/01org/hyperscan The ChangeLog for this release from CHANGELOG.md: [4.1.0] 2015-12-18 - Update version of PCRE used by testing tools as a syntax and semantic reference to PCRE 8.38. - Small updates to fix warnings identified by Coverity. - Clean up and unify exception handling behaviour across GPR and SIMD NFA models. - Fix bug in handling of bounded repeat triggers with large gaps between them for sparse repeat model. - Correctly reject POSIX collating elements ([.ch.], [=ch=]) in the parser. These are not supported by Hyperscan. - Add support for quoted sequences (\Q...\E) inside character classes. - Simplify FDR literal matcher runtime by removing some static specialization. - Fix handling of the POSIX [:graph:], [:print:] and [:punct:] character classes to match the behaviour of PCRE 8.38 in both standard operation and with the UCP flag set. (Note: some bugs were fixed in this area in PCRE 8.38.) Previously Hyperscan's behaviour was the same as versions of PCRE before 8.34. - Improve performance when compiling pattern sets that include a large number of similar bounded repeat constructs. (github issue #9) Regards, Matt.