Until very recently Microsoft did not have an available version for 19H2 available for testing.
Microsoft has changed the way they are servicing Windows 10 and this year the update rollups are going to be used to deliver the new features for version 1909. Microsoft is tightly focused on version 20H1 which has been distributed widely for testing.
Microsoft has indicated there will be a 30 month servicing for fall releases.
- Windows 10, version 1803 will reach the end of servicing on November 12, 2019.
While currently supported releases of Windows 10 Enterprise and Windows 10 Education (e.g. versions 1703, 1709, and 1803) will be serviced for 30 months from their original release date, per the Modern Lifecycle Policy, Windows 10, version 1903 and future March-targeted releases will be serviced for 18 months for all editions.
Using service packs was the historical way Microsoft handled Windows 2000 and onwards. Now with Windows 10, Microsoft has been dramatically different with new ISO releases semiannually.
Microsoft wanted to be sure the Windows 10 ecosystem is properly updated as there are a lot of outstanding security issues to handle. For that reason they are shorting the support to motivate updating Windows.
Considering ways to distribute Windows to OEM machine builders and consumers alike is probably best with an ISO that can be patched with update rollups.
The service pack way was nothing but a large rollup to simplify reinstalling Windows. Now with the reset Windows feature the need for an ISO is reduced. There is a need for a ISO or USB recovery solution in the event the system disk fails.
The USB stick in the studio has been updated with each new semiannual release primarily for refurbishing machines. The Intel SSD in the R5 2400G box has been rock solid so far which is why we chose their product in the first place.