Microsoft has released Windows 10 Insider Preview Build 18917 to Insiders in the Fast ring. This build includes numerous improvements such as new Windows Update download throttling settings, WSL2, and Windows Ink improvements. Microsoft also optimized data table reading in Narrator: “We ve optimized the information you hear with Narrator when navigating a table using table navigation commands”” Microsoft also fixed an issue where some users experienced a 0x8007000E error code while downloading the build due to high RAM consumption.”
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-insider-build-18917-tests-new-download-throttling-settings/