Microsoft says the Windows 11 26H2 autumn update won't arrive as a big, stand‑alone release. Instead, expect a tiny enablement package that installs almost instantly — it flips the system version in a few minutes (roughly 2–5 min.) and needs just 1 reboot. Most of the heavy lifting happens earlier: Microsoft is shipping new bits through monthly cumulative updates, and the enablement pack simply activates already‑downloaded components. Don’t look for dramatic new UI tweaks right away; the switch is mostly behind the scenes.
System requirements stay unchanged: at least 4 GB RAM, 64 GB free disk, and a 64‑bit dual‑core CPU at 1 GHz or higher. There’s a wrinkle for certain new hardware: a separate Windows 11 26H1 build exists for devices using Nvidia N1 and Snapdragon X2 processors, and you won’t be able to upgrade that branch to 26H2 because the system cores differ.
This reflects a shift in Microsoft's approach: new features will roll out incrementally via monthly updates, while the annual release acts more like a formal support marker than a single big feature drop. That’s the plan, at least — whether it will feel tidy in everyday use remains to be seen.