Note: Microsoft has extended support for an additional 6 months with supplemental servicing for versions 1607, 1703, and 1709. Only 2 active versions will typically be supported with updates at any given time (with some overlap during the period the latest version is declared ready for broad deployment and support ending for the oldest version.) Approximately 4 months after a new release it is declared ready for broad deployment, previously referred to as the Current Branch for Business (CBB). The initial release of a feature update is the Semi-Annual Channel (Pilot), previously referred to as the Current Branch (CB). New versions with feature updates are planned to be released on a semi-annual basis with an estimated support timeframe of 18 months.

Systems at unsupported servicing levels or releases will not receive security updates for new vulnerabilities which leaves them subject to exploitation. And while it didn't explicitly say so, it's pretty clear that there aren't going to be major new features coming to Windows 10 new development is focused on Windows 11 now.Windows 10 is maintained by Microsoft at servicing levels for specific periods of time to support Windows as a Service. It did confirm that Windows 10 is going to be supported until October 2025, so it's committed to that. Unsurprisingly, Microsoft doesn't comment on its roadmap. Other questions asked in the AMA were the usual, such as if version 21H2 will be the last feature update to Windows 10. As for when that will be, that's anyone's guess. Specifically, Microsoft confirmed that the next LTSC version of Windows after that will be based on Windows 11. It's also worth remembering that Windows 10 version 21H2 is going to be an LTSC release. The first version of Windows 11 isn't going to be an LTSC version though it's worth noting that the original version of Windows 10 was. In an AMA about Windows 11 and Windows 10 servicing and lifecycle, Microsoft confirmed that Windows 11 is going to get an LTSC version, and that it's going to be supported for five years.

The LTSC gets five years of support, although it used to be 10 years.

Windows 10 ltsc version