Version and build numbers of update channel releases for Office 365 clients.Overview of update channels for Office 365 ProPlus.For more information, see the following Microsoft articles: The same update applies to all corresponding editions of Microsoft Office 365, such as ProPlus and Business Retail. Microsoft uses update channels for Office 365 and releases a separate update for each version of a channel. Thus the download size depends on the number of the installed Office components and the number of the Office files to be updated.įor more information, see Deployment guide for Office 365 ProPlus. During the update process, the Office updater service (ClickToRunSvc) connects to the network location that stores the full image of the latest version of Office, and then downloads only the updates for the Office components that are installed in your environment. You can disable automatic updating or invoke updating manually in Office menu. By default, Click-to-Run products are updated automatically on client computers.With Click-to-Run, you download a single executable program that lets you initiate Click-to-Run streaming and application start processes. You can start using the product while the rest of it is being downloaded in the background to a network or HTTP share (the default location is Microsoft CDN). When you open an application that is not yet downloaded and installed, Click-to-Run immediately downloads it from there and installs it to the client computer.

You do not need to download the whole Office product installer, and then update it to the current version with patches and service packs.The Click-to-Run method of downloading and updating Office products differs from the traditional Windows Installer-based (MSI) method in the following way: Microsoft Office 365 Click-to-Run products use virtualization and streaming Microsoft Application Virtualization (App-V) technology.

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