neowin[.]net/news/microsoft-begins-rolling-out-windows-11-to-select-users-starting-today/
microsoft[.]com/en-us/software-download/windows11
neowin[.]net/news/here-are-the-known-issues-in-the-first-windows-11-public-release/
Microsoft offers a few ways to get Win11 at the 2nd link above. While it's rolling out via Windows Update to a relative few devices, chances are if you check Windows Update you'll either see a message that your PC/laptop doesn't qualify, or a message to check hardware requirements. When I clicked that link I got a Microsoft web page saying basically not yet, they're still working on it & testing compatibility.
Of course I went ahead and downloaded the ISO. :) I tried the upgrade on a bare copy [no software installed] of Win10, which leads to my 1st BEWARE warning... Win11 requirements specify Secure Boot Capable, but with the Insider [Beta] builds so far it Does Not have to be turned on. With this official build, unless you use one of the hacks to turn off checking qualifications, Turn It On before attempting to upgrade. If you don't, Win11 setup will, and that may not work out so well. Luckily the BIOS for this PC can [& did] reset itself, which was a PITA -- had to set all the BIOS settings -- but at least the system wasn't bricked. Not every BIOS will reset itself -- unless Microsoft changes something, I expect that there will be more than a few bricked devices.
My 2nd warning isn't so dire... If you use Windows Boot Menu to select which OS to boot into, upgrading to Win11 will mess it up [same as upgrading versions of Win10 if they use a re-installation]. EasyBCD was always a quick & easy fix, but Not In Win11... The result of editing / fixing the boot menu looked good, until I restarted, and then it was all messed up. EasyBCD did work back in Win10.
The Insider Beta channel hasn't had any Win11 updates, but the new ISO fixed that, giving me a chance to check out the script to bypass qualification checking. In my Win11 VM I unzipped the file I downloaded by clicking the download zip button on the GitHub page, and ran the script as admin. Then I ran setup from the attached ISO and it worked just like it was supposed to. I then ran the script a 2nd time -- I'm unsure whether you should run it that 2nd time or not, based on the page I've linked to below, but I figured only one way to find out. The main difference between this new copy of Win11 & the Insider copy is that now I have the new Store. [Note: The VirtualBox developers are rumored to be working on Win11 guest compatibility.]
bleepingcomputer[.]com/news/microsoft/new-windows-11-install-script-bypasses-tpm-system-requirements/
gist.github[.]com/AveYo/c74dc774a8fb81a332b5d65613187b15#file-skip_tpm_check_on_dynamic_update-cmd
I had held off on trying the EaseUS tool until the official ISO was released. I tried it in a VM, and while it did create a bootable Win11 install USB stick in about 15 minutes, it used a pre-release ISO. :{ I'll try again in a couple few days.