Microsoft announced today that those still running Windows 10 version 1803 will now be offered the upgrade for 1903.

“We are initiating the Windows 10 May 2019 Update for customers with devices running [Windows 10 version 1803] that will reach the end of 18 months of service on November 12, 2019,” Microsoft’s Windows Update account tweeted today.

To be clear, the Windows 10 May 2019 Update will upgrade any supported version of Windows 10 to version 1903.

The Microsoft Docs website offers more information:

“We are initiating the Windows 10 May 2019 Update for customers with devices that are at or nearing end of service and have not yet updated their device,” the site notes. “Keeping these devices both supported and receiving monthly updates is critical to [PC] security and ecosystem health. Based on the large number of devices running the April 2018 Update, that will reach the end of 18 months of service on November 12, 2019, we are starting the update process now for Home and Pro editions to help ensure adequate time for a smooth update process.”

As Microsoft explains, it takes a number of factors into consideration before pushing a major version upgrade like Windows 10 version 1903 on its users. And while the firm doesn’t have a particularly stellar record with these upgrades, it pledges to closely monitor update feedback to prioritize those PCs that more likely to have a good update experience. And it will put update blockers on other PCs while it addresses known issues.

New to this release, both Windows 10 Home and Pro edition users can now pause this and future feature update for up to 35 days.