1 HTML Purifier 4.9.0 is a maintenance release, collecting a year
2 of accumulated bug fixes plus a few new feature. New features
3 include support for min/max-width/height CSS, and rgba/hsl/hsla
4 in color specifications. Major bugfixes include improvements
5 in the Serializer cache to avoid chmod'ing directories, better
6 entity decoding (we won't accidentally encode entities that occur
7 in URLs) and rel="noopener" on links with target attributes,
8 to prevent them from overwriting the original frame.