
Microsoft has announced that it's splitting the Windows Insider Canary Channel in two as it begins testing the next platform release under a new series of build numbers that are ahead of the current 25H2, 26H1, and 26H2 build numbers. This is the first of likely many preview builds that are laying the groundwork for next year's 27H2 release, which we expect will ship on top of a new platform release, or Windows "core" as Microsoft calls it.
The splitting of the Canary Channel isn't a new concept for the Windows Insider Program. Microsoft had a thing called "Skip Ahead" that it used to offer to Windows Insiders in its most experimental preview channel, which let users skip ahead to the next major Windows platform release. This is essentially the exact same thing, except this time it's not called Skip Ahead.