If a file has changed (new update time on the file or the size has changed), the file will be redeployed.

如果文件已经更改(文件的最新更新时间或者文件的大小已经更改)，那么将会重新部署该文件。

youdao

If the application, at update time, sees that this value has been modified, then the update cannot take place, and the user is informed that he or she must try again.

如果应用程序在更新时看到该值已经更改，则不会进行更新，并通知用户需要重试其操作。

youdao

White House officials acknowledge it is time to reinvigorate and update the U.S.-Japan relationship.

VOA: standard.2009.11.12

"He has improved information-sharing, increased intelligence support to our troops in Afghanistan and Iraq, upheld civil liberties, and he played a key role in our effort to update and reorient our intelligence community to meet the threats of our time."

VOA: standard.2010.06.05

Most printers look for a firmware update every time they receive a job but, for some reason, they rarely check the validity of an incoming file.

ENGADGET: Researchers expose printer vulnerability, turn LaserJets into literal time bombs (update)

"I'm not going to publish a status update every time I walk up to my stove, " said Taylor, the Facebook CTO who is also an avid cook.

CNN: Facebook revamps site with 'Timeline' and real-time apps

Compared to previous versions of HTML, HTML5 makes it easier to create feature-rich Web-based applications that can be updated remotely with new functionality without requiring users to download and install an update each time.

FORBES: HTML5 Vs. Native Mobile Apps: Myths and Misconceptions