libxspf (formerly called libSpiff) is a C++ library for reading and writing XSPF playlists. Both version 0 and 1 are supported. It is the official reference implementation for XSPF of the Xiph.Org Foundation.
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Besides bugfixes and cleanups, this release mainly features a redesigned XSPF writing API and malicious XML detection à la billion laughs. The writing API in previous releases was unnecessarily ugly; it should be better now. Malicious XML detection should be of greatest interest to people using libSpiff in Web services. More about its internals and configuration can be found in the API documentation.