What release of a CTR version of Office 2013 is installed over the Internet?

[TonyC]

When you install a click-to-run version of Office 2013 by downloading from the Internet, is the current release (currently 15.0.4569.1508) streamed to your PC straightaway? Or is some back level release installed initially, and this is then updated at some later date (that is, there are two lots of downloads).

I have the backup DVD for my version of Office 2013, but it contains the RTM level of code (15.0.4420.1017). So, if I can install the current release level straightaway by downloading from the Internet, I might choose that option rather than installing from the DVD.