PHP 5.5.31 和 PHP 5.6.17 发布，这两个版本是安全修复版本，建议所有用户都升级到最新版本。
下载：http://www.php.net/downloads.php
Windows 二进制包下载：windows.php.net/download/
PHP 5.6.17 更新日志：
Core:
Fixed bug #66909 (configure fails utf8_to_mutf7 test).
Fixed bug #70958 (Invalid opcode while using ::class as trait method paramater default value).
Fixed bug #70957 (self::class can not be resolved with reflection for abstract class).
Fixed bug #70944 (try{ } finally{} can create infinite chains of exceptions).
Fixed bug #61751 (SAPI build problem on AIX: Undefined symbol: php_register_internal_extensions).
FPM:
Fixed bug #70755 (fpm_log.c memory leak and buffer overflow).
GD:
Fixed bug #70976 (Memory Read via gdImageRotateInterpolated Array Index Out of Bounds).
Mysqlnd:
Fixed bug #68077 (LOAD DATA LOCAL INFILE / open_basedir restriction).
SOAP:
Fixed bug #70900 (SoapClient systematic out of memory error).
Standard:
Fixed bug #70960 (ReflectionFunction for array_unique returns wrong number of parameters).
PDO_Firebird:
Fixed bug #60052 (Integer returned as a 64bit integer on X64_86).
WDDX:
Fixed bug #70661 (Use After Free Vulnerability in WDDX Packet Deserialization).
Fixed bug #70741 (Session WDDX Packet Deserialization Type Confusion Vulnerability).
XMLRPC:
Fixed bug #70728 (Type Confusion Vulnerability in PHP_to_XMLRPC_worker()).
PHP 5.5.31 更新日志：
FPM:
Fixed bug #70755 (fpm_log.c memory leak and buffer overflow).
GD:
Fixed bug #70976 (Memory Read via gdImageRotateInterpolated Array Index Out of Bounds).
WDDX:
Fixed bug #70661 (Use After Free Vulnerability in WDDX Packet Deserialization).
Fixed bug #70741 (Session WDDX Packet Deserialization Type Confusion Vulnerability).
XMLRPC:
Fixed bug #70728 (Type Confusion Vulnerability in PHP_to_XMLRPC_worker()).
来自:开源中国社区
