"We wanted to test our ability to quickly follow up a flight with another flight," Microsoft Windows Insider program manager Brandon LeBlanc noted in a blogpost.
The latest preview today is from the Iron (Fe) branch and contains very few changes to preview build 20277 that it flighted last week to users in the Dev Channel. At the same time last week, it released RS_Prerelease build 21277, which is expected to be designated as the 'Cobalt' branch and could arrive in the second half of 2021.
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(TechRepublic)
LeBlanc also offered an update on which of the branches users in the Dev Channel should be receiving.