Why doesn't Windows 10 have 23H2/24H2? Is 22H2 necessarily better than 21H2?

Why Doesn’t Windows 10 Have 23H2/24H2? Is 22H2 Really Better Than 21H2?

If you’ve been paying even a little attention to your computer’s operating system, you’ve likely noticed that your Windows 10 version is stuck at “22H2.”

Meanwhile, your colleagues using Windows 11 have long since upgraded to 23H2, or even the latest 24H2. This might leave you with a burning question: Why doesn’t Windows 10 have 23H2 or 24H2?

At the same time, when you scour tech forums for the most stable “forever” version of Windows 10, countless experts will recommend a version called “Windows 10 IoT LTSC 2021.” But after you excitedly install it, you’ll find its underlying build number reads “21H2.”

This leads to confusion: If the highest version is 22H2, why is everyone recommending 21H2? If patching can upgrade the system, can I take an older LTSC 2019 (build 1809), apply all the latest patches, and get the same experience as 22H2? And since regular Windows 10 has stopped receiving updates, should I use those ESU cracking tools floating around online?

Today, let’s thoroughly dismantle the “smoke and mirrors” Microsoft has played with Windows 10 version numbers and update strategies.

01 |

Why Did Windows 10 Permanently Stop at 22H2?

To answer this, we first need to understand Microsoft’s update logic.

In the early days, Microsoft pushed major feature updates annually, which involved changing the major version number—for example, upgrading from 20H2 to 21H2, then 22H2. These updates theoretically changed the system architecture and added new features.

However, everything changed after Microsoft released Windows 11. To force global users to upgrade to the new system, Microsoft officially announced that Windows 10 22H2 would be the last feature update for Windows 10.

In other words, Windows 10 was officially “sealed” at the 22H2 milestone. It will never have a 23H2 or 24H2. Under these rules, stopping feature updates is essentially Microsoft’s “eviction notice” to users.

And the harsh reality is that the regular consumer versions of Windows 10 (including Home, Pro, and standard Enterprise) officially ended their free technical support last year (October 14, 2025).

02 |

Is 22H2 Really Better Than 21H2?

Since 22H2 is the final version, many people naturally assume it surpasses 21H2 in every way.

But the truth is: at the underlying system architecture level, Windows 10 22H2 and 21H2 are identical twins.

This might sound unbelievable, but we need to introduce a core technology: the Enablement Package.

As early as the development of Windows 10 version 2004, Microsoft had already baked the underlying code for several subsequent versions into the system. The later 21H1, 21H2, and even the final 22H2 all share the exact same base core (internal build number Build 1904x). 22H2 is simply 21H2 with an extra “key” that unlocks a few minor, hidden feature switches.

What determines whether a system is secure or supports new hardware is the monthly “cumulative update patch.” Since they share the same underlying core, the patches Microsoft sends to 22H2 each month are also sent verbatim to 21H2.

Take Intel’s 12th generation and later “big.LITTLE” architecture processors, for example. Many mistakenly believe you need to upgrade to 22H2 to support them. In reality, Microsoft has long pushed the scheduling optimizations for big.LITTLE to the 21H2 system kernel via monthly cumulative patches. As long as your 21H2 has the latest patches installed, your computer is on par with 22H2 in terms of vulnerability fixes, anti-malware capabilities, and underlying hardware scheduling optimizations.

03 |

If Patches Can Bridge the Gap, Can the Ancient 1809 Catch Up with Patches Too?

Seeing this, many tinkerers might draw a dangerously logical conclusion: “Since 21H2 and 22H2 are the same with all patches applied, then the legendary Windows 10 LTSC 2019 (build 1809), if updated with today’s patches, should have the same underlying capabilities as 22H2, right?”

The answer is: absolutely not! This is a “generational gap” in the physical architecture.

As mentioned earlier, 21H2 and 22H2 are from the same family, with a base of Build 1904x. But 1809’s base is Build 17763, which belongs to a previous-generation system kernel.

For this older kernel, Microsoft’s monthly cumulative updates only include “security vulnerability fixes.” They absolutely do not include upgrades to the underlying API or driver architecture. Even if you connect 1809 to the internet today and apply the latest patches, it still cannot bridge the generational divide.

For example, 1809 lacks hardware-accelerated GPU scheduling, which can limit frame rates on newer graphics cards. It doesn’t support full DirectX 12 Ultimate. Most critically, its old task scheduler doesn’t recognize Intel’s big.LITTLE architecture, causing high-load tasks to run on the small cores, severely impacting performance.

So, patches can only fix vulnerabilities; they cannot change the system’s DNA. 1809 is only suitable for older computers with Intel 11th generation Core processors and earlier. For new hardware, don’t be fooled by 1809’s so-called “stability.”

04 |

After the October 2025 Deadline, Are ESU Activation Tools Necessary?

It’s now 2026, and regular Windows 10 22H2 has stopped receiving official security updates. To “extend the life” of the system, the enthusiast community has popularized using the TSForge tool in the MAS activation suite to enable and activate ESU (Extended Security Updates).

ESU is essentially Microsoft’s “expensive paid life-support drug” for an already “dead” Windows 10. Enterprises have to pay a hefty sum for it, while enthusiasts use cracking tools to get these patches for free.

So, the question is: if you followed everyone’s advice and installed the most perfect Windows 10 IoT LTSC 2021 (based on 21H2), do you still need to use a tool to crack ESU?

Absolutely not! Cracking ESU on IoT LTSC 2021 is completely redundant.

Why? Because IoT LTSC 2021’s official regular lifecycle is 10 years, ending in January 2032. This means that until 2032, it is itself a “regular army” protected by Microsoft. Windows Update will freely deliver the latest security patches to it every month.

You only need to bother with ESU if you’re using a regular Windows 10 (e.g., Pro 22H2) and don’t want to reinstall, or if you’re using an older version whose lifecycle has just expired. In the face of Windows 10 IoT LTSC 2021, all life-extension tools are unnecessary.

05 |

The Ultimate Selection Guide for Regular Users

Windows 10 has no 23H2 or 24H2 because Microsoft has long since ceded the stage to Windows 11.
22H2 is not superior to 21H2; they share the same kernel.
Even with all patches applied, the older 1809 cannot hide its aging kernel when faced with modern hardware.

For today’s computer users, here is the most honest system selection advice:

If you still love Windows 10, don’t want to be bothered by endless major system updates, and don’t want to be forced to tinker with ESU cracking tools because Microsoft stopped support, then let go of your obsession with the “22H2” version number.

Windows 10 IoT LTSC 2021, based on the 21H2 kernel, is the only “safe haven” you can find today that both perfectly leverages new hardware performance and enjoys a full decade of official security protection. It has no forced Microsoft ads, no bloated app store, and is far superior and purer than regular 22H2.

On the other hand, if you’ve purchased the latest high-end hardware, or want to chase the shiny numbers like 23H2 and 24H2 along with the latest AI experiences, then don’t search among the ruins of Windows 10. Just go install Windows 11.

If you’re also looking for that same peace and quiet in Windows 11, the newly released Windows 11 IoT LTSC 2024 will be your god-tier choice for the next decade.

In this digital age, a truly great operating system isn’t one that constantly pops up to remind you how new it is. It’s one that stably and quietly supports your every task.