Docker v1.12.1 RC 2 发布

Docker v1.12.1 RC 2 发布了，这是 Docker v1.12.1 的候选版本，Docker v1.12.1 将于 2016-08-18 发布。

下载地址：

部分更新内容：

Add Joined at information in node inspect --pretty #25512
Fix a crash on service inspect #25454
Fix issue preventing service update --env-add to work as intended #25427
Fix issue preventing service update --publish-add to work as intended #25428
Remove service update --network-add and service update --network-rm flags because this feature is not yet implemented in 1.12, but was inadvertently added to the client in 1.12.0#25646

Official ARM installation for Debian Jessie, Ubuntu Trusty, and Raspbian Jessie #24815 #25591
Add selinux policy per distro/version, fixing issue preventing successful installation on Fedora 24, and Oracle Linux #25334 #25593

Fix issue that prevented containers to be accessed by hostname with Docker overlay driver in Swarm Mode #25603 #25648
Fix random network issues on service with published port #25603
Fix unreliable inter-service communication after scaling down and up #25603
Fix issue where removing all tasks on a node and adding them back breaks connectivity with other services #25603
Fix issue where a task that fails to start results in a race, causing a network xxx not founderror that masks the actual error #25550
Relax validation of SRV records for external services that use SRV records not formatted according to RFC 2782 #25739

Mask join tokens in daemon logs #25346
Fix docker ps --filter causing the results to no longer be sorted by creation time #25387
Fix various crashes #25053

Add /proc/timer_list to the masked paths list to prevent information leak from the host#25630
Allow systemd to run with only --cap-add SYS_ADMIN rather than having to also add --cap-add DAC_READ_SEARCH or disabling seccomp filtering #25567

Persist local volume options after a daemon restart #25316
Fix an issue where the mount ID was not returned on volume unmount #25333
Fix an issue where a volume mount could inadvertently create a bind mount #25309
docker service create --mount type=bind,... now correctly validates if the source path exists, instead of creating it #25494