gdImageTrueColorToPalette(). (Ilia)
- Fixed bug #12776 (array_walk crash). (Moriyoshi)
- Fixed bugs #20270, #15702, #18600 (segfaults in ext/java). (Tony J. White)
+- Made bcmath extension thread safe. (Sander)
- Fixed bug #19566 (get_declared_classes() segfaults). (Moriyoshi, Marcus, Andi)
- Fixed bug #20381 (array_merge_recursive mangles input arrays). (Moriyoshi)
- Added -n command switch to cli and cgi version which allows to skip php.ini