Release Notes: Support for 32-bit characters strings and UTF-32 has been added. Unicode compatibility has been improved for \X (it now matches extended grapheme clusters) and for characters such as Greek sigma that have more than one "other case". The Unicode tables are updated to 6.2.0. Matching using the JIT compiler has been sped up in some cases. There are some extensions to pcregrep and, as always, bugs have been fixed.
Release Notes: This release contains a major new feature, support for 16-bit character strings by means of a second library which can be compiled instead of, or as well as, the 8-bit library. Other changes are mainly bugfixes and tidies.
Release Notes: This release contains Zoltan Herczeg's just-in-time compiler, which can drastically improve matching performance at the cost of additional pattern analysis time. In addition to that major new feature, bugs have been mended and infelicities tidied up.