New Output API (internal code cleanup) Session entropy from /dev/urandom by default <?= is now always available default charset is UTF-8 instead of ISO-8859-1 Multibyte support is now configurable at runtime Better support for asian chars in htmlspecialchars/htmlentities INI directive to disable POST data processing XSLT writes are disabled by default now Added AES support to OpenSSL debug_backtrace() now takes optional arg to limit number of stack frames returned mysqlnd used by default unless overridden by ./configure file upload progress support in Session extension TZ env var is ignored - UTC if not otherwise set REQUEST_TIME_FLOAT has microsecond precision and is a double now proper readline support for php -a Add E_STRICT to E_ALL crypt() in Blowfish mode now supports hashes marked $2a$, $2x$, $2y$ and $2z$ Added support for SORT_NATURAL and SORT_FLAG_CASE in all array sort functions