Windows 10 October 2018 Update is likely to land in the first week of October as Microsoft has reportedly completed the development of Windows 10 version 1809. Microsoft hasn’t officially confirmed this development, but there are several findings that suggest Microsoft is getting ready to roll out this particular build to the general public sometime in the coming days. Windows 10 Build 17763 is the final version of October 2018 update that everyone is going to get next month. Microsoft may release a bug fixing update before rolling out the feature update to the public.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-october-2018-update-is-rtm-clues-leads-to-final-build-17763/