Memcached 1.5.7 已发布，该版本没有新增的功能，主要是修复 bug。
修复了 64 位 ARM 处理器的对齐问题，seccomp 可移植性以及使用二进制触发命令时的 extstore 引发的 refcount 泄漏问题。具体如下：
extstore: fix ref leak when using binary protocol with TOUCH,GAT,GATK
Drop supplementary groups in addition to setgid
Use HAVE_SASL_CB_GETCONFPATH
Fix SASL_CB_GETCONF(PATH) detection
Rewrite memchached-tool 'dump' method to use new lru_crawler interface.
Fixes decrement-before-check problem (issue #362).
document in manpage that port 0 is off.
Fix SIGBUS from alignment issues on 64bit ARM
Update seccomp with syscalls found on Arch
Enforce seccomp policy (kill process)
Support seccomp on musl
update --help for UDP default
Fix sed options order in rpm specfile
详细更新请查看发布说明：https://github.com/memcached/memcached/wiki/ReleaseNotes157
源码下载：https://github.com/memcached/memcached/releases/tag/1.5.7
引用来自“开源中国首席最强王者”的评论
没redis好吧