Build 17763.167 for Windows 10 version 1809 is rolling out to Windows 10 October 2018 Update devices enrolled in the Insider program but the changelog wasn’t available at that time. Microsoft has also fixed an issue where the Mapped drivers may not work properly and fail to reconnect after starting and logging onto a Windows device. The company is not aware of any known issues in this update and the same build or newer build could be released to the general public next month with additional fixes.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-october-2018-update-build-17763167-released-to-insiders-with-fixes/