这样还限制了旧web服务的可用性窗口，因此在下一版本推出前，会强制Web服务使用者升级到最新版本。
It also limits the availability window for the old Web service, so Web service consumers are forced to upgrade to the latest version before the next release.
它们的数量随着版本的升级而增加，其中一些是强制性运行的，而另一些则是可选的。
The number increases with each version of Oracle, some of them are mandatory, others are optional.
随着几个相机升级，新的水下外壳和强制获得更好的拍摄，摄影已经成为他的职业生涯，海洋已成为他的办公室。
With several camera upgrades, new underwater housings and a compulsion to get that better shot, photography has become his career and the ocean has become his office.
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