The first version with the number 7. Today Microsoft has released a new Version from the Next Generation Sync Client and some people will the the version 17.3.7010.9012 on the devices. The fully Update-Mechanism downloads the right version and update the new version. Enterprise customers will find the version 17.3.6998.0830.
The Change log file was updated with the version 17.3.6998.0830, no information about the latest version.
Here is my own Change-Log