In order to help users switch over, Google has provided an upgrade guide with a list of incompatibilites between the two versions.
为了帮助用户切换到新版本，Google 提供了一个升级指南并列出两个版本之间的不兼容之处。
It is possible to switch all stores to the new version simultaneously, but a more practical approach is to let some or all of the stores upgrade just a few of its POS terminals to start with.
当然，可以要求所有连锁店一起切换到新版本的应用程序，但更实际的方法则是让一些或全部连锁店开始只升级其部分 POS 终端。
You can then optionally switch on and off your extensions using method configurations as well as easily upgrade to newer versions of the original elements and reapply your changes.
这样你就可以使用方法配置有选择地打开或关闭你的扩展，还可以方便地把原始元素升级到更新的版本并重新应用你的变化。
应用推荐