v0.18.0

• Updated PCRE to v10.39
• Added a ValueSpan property to string-based matches and groups

v0.17.0

• Updated PCRE to v10.38 with a patch.
• Added XML documentation (IntelliSense)
• Disallowed reentrancy in PcreMatchBuffer
• Breaking change: Changed the exception types thrown on error
• Added the PCRE error code to the exceptions

v0.17.0-pre2

• New zero-allocation API: The PcreRegex.CreateMatchBuffer method lets you create a buffer which can then be used for matching operations without performing any further allocations.
• Breaking change: Removed the following members on PcreMatchSettings: StartIndex, AdditionalOptions, SetCallout. These options now need to be provided directly to the Match/Matches methods. PcreMatchSettings now only contains advanced settings.
• Removed the PcreRefMatch.Copy() method introduced in v0.17.0-pre1. PcreRefMatch can now be copied normally like any struct, and won't be overwritten unless it's created by the zero-allocation API.

v0.17.0-pre1

• Updated PCRE to v10.38-RC1
• Added PcreExtraCompileOptions.AllowLookaroundBsK to enable \K support in lookarounds
• Removed allocations when the match fails and there are few capturing groups in the pattern
• Added a PcreRefMatch.Copy() method to create a copy of a ref match that will not be overwritten
• Made some other optimizations

v0.16.0

• Updated PCRE to v10.37
• Added a .NET 5 target with a few optimizations

v0.15.0

• Added a GroupNames property in the pattern info (#24)
• Added nullable reference types annotations
• Breaking change: match[invalidIndex] and match[invalidName] won't return null anymore, but an "undefined" group
• Added a IsDefined property to PcreGroup and PcreRefGroup to tell if a group index or name is defined
• Added TryGetGroup methods to PcreMatch and PcreRefMatch to tell if a group index or name is defined
• Made the values returned by PcreRefGroup consistent with those returned by PcreGroup when a group did not match

v0.14.0

• Updated PCRE to v10.36

v0.13.1

• Removed dependency on C++ library (#20)
• Fixed overflow error in callouts (#21)

v0.13.0

• Updated PCRE to v10.35

v0.12.0

• Added new APIs for matching ReadOnlySpan<char> inputs, based on ref struct types. These APIs will cause substantially less heap allocations.
• The IsMatch instance method no longer allocates on the heap if there are few capturing groups in the pattern.