Windows Server, a cornerstone of modern IT infrastructure, offers two primary release channels to cater to diverse organizational needs: the Long-Term Servicing Channel (LTSC) and the Annual Channel (AC). Choosing the right version is crucial for aligning your server infrastructure with your business goals, whether you prioritize stability and long-term support or rapid innovation and feature updates. This guide breaks down the different Windows Server Versions available, helping you navigate the complexities and make informed decisions for your environment.
Long-Term Servicing Channel (LTSC): Stability and Longevity
The Long-Term Servicing Channel (LTSC) is designed for environments that prioritize stability and require a longer support lifecycle. LTSC releases, like Windows Server 2025 and Windows Server 2022, are ideal for traditional workloads that demand robust reliability over cutting-edge features.
Key characteristics of the LTSC include:
- Predictable Release Cycle: Major LTSC versions are typically released every 2-3 years. This predictable cadence allows for thorough planning and testing before deployment.
- Extended Support: Each LTSC release receives 5 years of mainstream support followed by 5 years of extended support, totaling a decade of security and critical updates. This long lifecycle reduces the frequency of major upgrades and associated disruptions.
- Focus on Core Infrastructure: LTSC versions concentrate on delivering essential server roles, security enhancements, and quality updates. While new features are introduced, the emphasis is on proven technologies and stability.
- Lower Update Cadence: Feature updates are less frequent in LTSC, focusing on security and quality patches. This minimizes the risk of compatibility issues and ensures a consistent operating environment.
- Editions: Typically offered in Datacenter and Standard editions, catering to different scales of deployment and feature requirements.
For organizations running mission-critical applications, infrastructure servers, and workloads where change needs to be carefully managed, the LTSC provides a dependable and secure platform with a long-term commitment from Microsoft. Windows Server 2025, the latest in this channel, continues this tradition, offering the most current stable foundation for your server needs.
Annual Channel (AC): Embracing Innovation and Agility
In contrast to the LTSC, the Annual Channel (AC) is tailored for organizations that want to rapidly adopt new features and innovations, particularly in areas like containers and microservices. Windows Server, version 23H2 is the most recent release in the AC, showcasing the channel’s commitment to frequent updates.
Key characteristics of the AC include:
- Frequent Feature Releases: New versions of the AC are released approximately every year. This rapid release cycle provides access to the latest features and functionalities as soon as they are available.
- Shorter Support Lifecycle: Each AC release is supported for 18 months. This shorter timeframe necessitates more frequent upgrades but allows organizations to continuously benefit from the newest technologies.
- Innovation-Driven: The AC is at the forefront of Windows Server innovation, with a strong focus on cloud-native technologies, containerization, and microservice architectures.
- Ideal for Modern Applications: The AC is well-suited for organizations developing and deploying modern applications, leveraging containers, and embracing DevOps practices.
- Virtualization and Cloud Focus: The AC often integrates closely with technologies like Azure Stack HCI and AKS on Azure Stack HCI, reflecting the evolving landscape of hybrid and cloud environments.
Organizations that prioritize agility, are developing cloud-native applications, or need to leverage the latest container and microservice capabilities will find the Annual Channel a powerful and dynamic option. While requiring more frequent updates, the AC provides a pathway to continuous innovation and access to cutting-edge server technologies.
Windows Server Major Versions: A Timeline
To provide a clearer picture of the available options, here’s a table summarizing the key Windows Server versions within the Long-Term Servicing Channel. This table highlights their editions, availability dates, build information, and crucial support end dates.
| Windows Server Version | Servicing Option | Editions | Availability Date | Latest Build | Mainstream Support End Date | Extended Support End Date |
|---|---|---|---|---|---|---|
| Windows Server 2025 | Long-Term Servicing Channel (LTSC) | Datacenter, Standard | 2024-11-01 | 26100.3194 | 2029-10-09 | 2034-10-10 |
| Windows Server 2022 | Long-Term Servicing Channel (LTSC) | Datacenter, Standard | 2021-08-18 | 20348.3207 | 2026-10-13 | 2031-10-14 |
| Windows Server 2019 (1809) | Long-Term Servicing Channel (LTSC) | Datacenter, Standard | 2018-11-13 | 17763.6893 | End of servicing | 2029-01-09 |
| Windows Server 2016 (1607) | Long-Term Servicing Branch (LTSB) | Datacenter, Essentials, Standard | 2016-08-02 | 14393.7785 | End of servicing | 2027-01-12 |
Note: Windows Server 2019 mainstream support has ended. Windows Server 2016 mainstream support has also ended.
This table offers a quick reference to understand the lifecycle of different LTSC Windows Server versions. It’s important to note the support timelines, especially the extended support end dates, as these dictate how long Microsoft will provide security updates and critical fixes for each version. Planning your server upgrades in advance of these dates is a crucial aspect of maintaining a secure and compliant IT environment.
Windows Server Release History and Update Details
Beyond major versions, Windows Server follows a regular update cadence to ensure security and stability. Microsoft releases monthly security updates and non-security preview updates for supported versions within the Long-Term Servicing Channel.
The following tables provide a detailed history of these updates for Windows Server 2025, Windows Server 2022, Windows Server 2019, and Windows Server 2016. These tables are invaluable resources for IT administrators to track updates, identify specific builds, and access relevant Knowledge Base (KB) articles for each update.
(Windows Server 2025 Update History Table)
| Servicing Option | Update Type | Availability Date | Build | KB Article |
|---|---|---|---|---|
| LTSC | 2025-02 B | 2025-02-11 | 26100.3194 | KB5051987 |
| LTSC | 2025-01 B | 2025-01-14 | 26100.2894 | KB5050009 |
| LTSC | 2024-12 B | 2024-12-10 | 26100.2605 | KB5048667 |
| LTSC | 2024-11 B | 2024-11-12 | 26100.2314 | KB5046617 |
| LTSC | 2024-10 A | 2024-11-01 | 26100.1742 |
(Windows Server 2022 Update History Table)
| Servicing Option | Update Type | Availability Date | Build | KB Article |
|---|---|---|---|---|
| LTSC | 2025-02 B | 2025-02-11 | 20348.3207 | KB5051979 |
| LTSC | 2025-01 OOB | 2025-01-18 | 20348.3095 | KB5052819 |
| LTSC | 2025-01 B | 2025-01-14 | 20348.3091 | KB5049983 |
| LTSC | 2024-12 B | 2024-12-10 | 20348.2966 | KB5048654 |
| LTSC | 2024-11 B | 2024-11-12 | 20348.2849 | KB5046616 |
| LTSC | 2024-10 B | 2024-10-08 | 20348.2762 | KB5044281 |
| LTSC | 2024-09 B | 2024-09-10 | 20348.2700 | KB5042881 |
| LTSC | 2024-08 B | 2024-08-13 | 20348.2655 | KB5041160 |
| LTSC | 2024-07 B | 2024-07-09 | 20348.2582 | KB5040437 |
| LTSC | 2024-06 OOB | 2024-06-20 | 20348.2529 | KB5041054 |
| LTSC | 2024-06 B | 2024-06-11 | 20348.2527 | KB5039227 |
| LTSC | 2024-05 B | 2024-05-14 | 20348.2461 | KB5037782 |
| LTSC | 2024-04 B | 2024-04-09 | 20348.2402 | KB5036909 |
| LTSC | 2024-03 OOB | 2024-03-22 | 20348.2342 | KB5037422 |
| LTSC | 2024-03 B | 2024-03-12 | 20348.2340 | KB5035857 |
| LTSC | 2024-02 B | 2024-02-13 | 20348.2322 | KB5034770 |
| LTSC | 2024-01 B | 2024-01-09 | 20348.2227 | KB5034129 |
| LTSC | 2023-12 B | 2023-12-12 | 20348.2159 | KB5033118 |
| LTSC | 2023-11 B | 2023-11-14 | 20348.2113 | KB5032198 |
| LTSC | 2023-10 B | 2023-10-10 | 20348.2031 | KB5031364 |
| LTSC | 2023-09 B | 2023-09-12 | 20348.1970 | KB5030216 |
| LTSC | 2023-08 B | 2023-08-08 | 20348.1906 | KB5029250 |
| LTSC | 2023-07 B | 2023-07-11 | 20348.1850 | KB5028171 |
| LTSC | 2023-06 B | 2023-06-13 | 20348.1787 | KB5027225 |
| LTSC | 2023-05 B | 2023-05-09 | 20348.1726 | KB5026370 |
| LTSC | 2023-04 B | 2023-04-11 | 20348.1668 | KB5025230 |
| LTSC | 2023-03 B | 2023-03-14 | 20348.1607 | KB5023705 |
| LTSC | 2023-02 B | 2023-02-14 | 20348.1547 | KB5022842 |
| LTSC | 2023-01 B | 2023-01-10 | 20348.1487 | KB5022291 |
| LTSC | 2022-12 OOB | 2022-12-20 | 20348.1368 | KB5022553 |
| LTSC | 2022-12 B | 2022-12-13 | 20348.1366 | KB5021249 |
| LTSC | 2022-11 C | 2022-11-22 | 20348.1311 | KB5020032 |
| LTSC | 2022-11 OOB | 2022-11-17 | 20348.1251 | KB5021656 |
| LTSC | 2022-11 B | 2022-11-08 | 20348.1249 | KB5019081 |
| LTSC | 2022-10 C | 2022-10-25 | 20348.1194 | KB5018485 |
| LTSC | 2022-10 OOB | 2022-10-17 | 20348.1131 | KB5020436 |
| LTSC | 2022-10 B | 2022-10-11 | 20348.1129 | KB5018421 |
| LTSC | 2022-09 C | 2022-09-20 | 20348.1070 | KB5017381 |
| LTSC | 2022-09 B | 2022-09-13 | 20348.1006 | KB5017316 |
| LTSC | 2022-08 C | 2022-08-16 | 20348.946 | KB5016693 |
| LTSC | 2022-08 B | 2022-08-09 | 20348.887 | KB5016627 |
| LTSC | 2022-07 C | 2022-07-19 | 20348.859 | KB5015879 |
| LTSC | 2022-07 B | 2022-07-12 | 20348.825 | KB5015827 |
| LTSC | 2022-06 C | 2022-06-23 | 20348.803 | KB5014665 |
| LTSC | 2022-06 B | 2022-06-14 | 20348.768 | KB5014678 |
| LTSC | 2022-05 C | 2022-05-24 | 20348.740 | KB5014021 |
| LTSC | 2022-05 OOB | 2022-05-19 | 20348.709 | KB5015013 |
| LTSC | 2022-05 B | 2022-05-10 | 20348.707 | KB5013944 |
| LTSC | 2022-04 C | 2022-04-25 | 20348.681 | KB5012637 |
| LTSC | 2022-04 B | 2022-04-12 | 20348.643 | KB5012604 |
| LTSC | 2022-03 C | 2022-03-22 | 20348.617 | KB5011558 |
| LTSC | 2022-03 B | 2022-03-08 | 20348.587 | KB5011497 |
| LTSC | 2022-02 C | 2022-02-15 | 20348.558 | KB5010421 |
| LTSC | 2022-02 B | 2022-02-08 | 20348.524 | KB5010354 |
| LTSC | 2022-01 C | 2022-01-25 | 20348.502 | KB5009608 |
| LTSC | 2022-01 OOB | 2022-01-17 | 20348.473 | KB5010796 |
| LTSC | 2022-01 B | 2022-01-11 | 20348.469 | KB5009555 |
| LTSC | 2022-01 OOB | 2022-01-05 | 20348.407 | KB5010197 |
| LTSC | 2021-12 B | 2021-12-14 | 20348.405 | KB5008223 |
| LTSC | 2021-11 C | 2021-11-22 | 20348.380 | KB5007254 |
| LTSC | 2021-11 B | 2021-11-09 | 20348.350 | KB5007205 |
| LTSC | 2021-10 C | 2021-10-26 | 20348.320 | KB5006745 |
| LTSC | 2021-10 B | 2021-10-12 | 20348.288 | KB5006699 |
| LTSC | 2021-09 C | 2021-09-27 | 20348.261 | KB5005619 |
| LTSC | 2021-09 B | 2021-09-14 | 20348.230 | KB5005575 |
| LTSC | 2021-08 C | 2021-08-26 | 20348.202 | KB5005104 |
(Windows Server 2019 Update History Table)
| Servicing Option | Update Type | Availability Date | Build | KB Article |
|---|---|---|---|---|
| LTSC | 2025-02 B | 2025-02-11 | 17763.6893 | KB5052000 |
| LTSC | 2025-01 B | 2025-01-14 | 17763.6775 | KB5050008 |
| LTSC | 2024-12 B | 2024-12-10 | 17763.6659 | KB5048661 |
| LTSC | 2024-11 B | 2024-11-12 | 17763.6532 | KB5046615 |
| LTSC | 2024-10 B | 2024-10-08 | 17763.6414 | KB5044277 |
| LTSC | 2024-09 B | 2024-09-10 | 17763.6293 | KB5043050 |
| LTSC | 2024-08 B | 2024-08-13 | 17763.6189 | KB5041578 |
| LTSC | 2024-07 B | 2024-07-09 | 17763.6054 | KB5040430 |
| LTSC | 2024-06 B | 2024-06-11 | 17763.5936 | KB5039217 |
| LTSC | 2024-05 OOB | 2024-05-23 | 17763.5830 | KB5039705 |
| LTSC | 2024-05 B | 2024-05-14 | 17763.5820 | KB5037765 |
| LTSC | 2024-04 B | 2024-04-09 | 17763.5696 | KB5036896 |
| LTSC | 2024-03 OOB | 2024-03-25 | 17763.5579 | KB5037425 |
| LTSC | 2024-03 B | 2024-03-12 | 17763.5576 | KB5035849 |
| LTSC | 2024-02 B | 2024-02-13 | 17763.5458 | KB5034768 |
| LTSC | 2024-01 B | 2024-01-09 | 17763.5329 | KB5034127 |
| LTSC | 2023-12 B | 2023-12-12 | 17763.5206 | KB5033371 |
| LTSC | 2023-11 B | 2023-11-14 | 17763.5122 | KB5032196 |
| LTSC | 2023-10 B | 2023-10-10 | 17763.4974 | KB5031361 |
| LTSC | 2023-09 B | 2023-09-12 | 17763.4851 | KB5030214 |
| LTSC | 2023-08 B | 2023-08-08 | 17763.4737 | KB5029247 |
| LTSC | 2023-07 B | 2023-07-11 | 17763.4645 | KB5028168 |
| LTSC | 2023-06 B | 2023-06-13 | 17763.4499 | KB5027222 |
| LTSC | 2023-05 B | 2023-05-09 | 17763.4377 | KB5026362 |
| LTSC | 2023-04 B | 2023-04-11 | 17763.4252 | KB5025229 |
| LTSC | 2023-03 B | 2023-03-14 | 17763.4131 | KB5023702 |
| LTSC | 2023-02 B | 2023-02-14 | 17763.4010 | KB5022840 |
| LTSC | 2023-01 B | 2023-01-10 | 17763.3887 | KB5022286 |
| LTSC | 2022-12 OOB | 2022-12-20 | 17763.3772 | KB5022554 |
| LTSC | 2022-12 B | 2022-12-13 | 17763.3770 | KB5021237 |
| LTSC | 2022-11 OOB | 2022-11-17 | 17763.3653 | KB5021655 |
| LTSC | 2022-11 B | 2022-11-08 | 17763.3650 | KB5019966 |
| LTSC | 2022-10 OOB | 2022-10-17 | 17763.3534 | KB5020438 |
| LTSC | 2022-10 B | 2022-10-11 | 17763.3532 | KB5018419 |
| LTSC | 2022-09 C | 2022-09-20 | 17763.3469 | KB5017379 |
| LTSC | 2022-09 B | 2022-09-13 | 17763.3406 | KB5017315 |
| LTSC | 2022-08 C | 2022-08-23 | 17763.3346 | KB5016690 |
| LTSC | 2022-08 B | 2022-08-09 | 17763.3287 | KB5016623 |
| LTSC | 2022-07 C | 2022-07-21 | 17763.3232 | KB5015880 |
| LTSC | 2022-07 B | 2022-07-12 | 17763.3165 | KB5015811 |
| LTSC | 2022-06 C | 2022-06-23 | 17763.3113 | KB5014669 |
| LTSC | 2022-06 B | 2022-06-14 | 17763.3046 | KB5014692 |
| LTSC | 2022-05 C | 2022-05-24 | 17763.2989 | KB5014022 |
| LTSC | 2022-05 OOB | 2022-05-19 | 17763.2931 | KB5015018 |
| LTSC | 2022-05 B | 2022-05-10 | 17763.2928 | KB5013941 |
| LTSC | 2022-04 C | 2022-04-21 | 17763.2867 | KB5012636 |
| LTSC | 2022-04 B | 2022-04-12 | 17763.2803 | KB5012647 |
| LTSC | 2022-03 C | 2022-03-22 | 17763.2746 | KB5011551 |
| LTSC | 2022-03 B | 2022-03-08 | 17763.2686 | KB5011503 |
| LTSC | 2022-02 C | 2022-02-15 | 17763.2628 | KB5010427 |
| LTSC | 2022-02 B | 2022-02-08 | 17763.2565 | KB5010351 |
| LTSC | 2022-01 C | 2022-01-25 | 17763.2510 | KB5009616 |
| LTSC | 2022-01 OOB | 2022-01-18 | 17763.2458 | KB5010791 |
| LTSC | 2022-01 B | 2022-01-11 | 17763.2452 | KB5009557 |
| LTSC | 2022-01 OOB | 2022-01-04 | 17763.2369 | KB5010196 |
| LTSC | 2021-12 B | 2021-12-14 | 17763.2366 | KB5008218 |
| LTSC | 2021-11 C | 2021-11-22 | 17763.2330 | KB5007266 |
| LTSC | 2021-11 OOB | 2021-11-14 | 17763.2305 | KB5008602 |
| LTSC | 2021-11 B | 2021-11-09 | 17763.2300 | KB5007206 |
| LTSC | 2021-10 C | 2021-10-19 | 17763.2268 | KB5006744 |
| LTSC | 2021-10 B | 2021-10-12 | 17763.2237 | KB5006672 |
| LTSC | 2021-09 C | 2021-09-21 | 17763.2213 | KB5005625 |
| LTSC | 2021-09 B | 2021-09-14 | 17763.2183 | KB5005568 |
| LTSC | 2021-08 C | 2021-08-26 | 17763.2145 | KB5005102 |
| LTSC | 2021-08 B | 2021-08-10 | 17763.2114 | KB5005030 |
| LTSC | 2021-07 OOB | 2021-07-27 | 17763.2091 | KB5005394 |
| LTSC | 2021-07 C | 2021-07-20 | 17763.2090 | KB5004308 |
| LTSC | 2021-07 B | 2021-07-13 | 17763.2061 | KB5004244 |
| LTSC | 2021-07 OOB | 2021-07-06 | 17763.2029 | KB5004947 |
| LTSC | 2021-06 C | 2021-06-15 | 17763.2028 | KB5003703 |
| LTSC | 2021-06 B | 2021-06-08 | 17763.1999 | KB5003646 |
| LTSC | 2021-05 C | 2021-05-20 | 17763.1971 | KB5003217 |
| LTSC | 2021-05 B | 2021-05-11 | 17763.1935 | KB5003171 |
| LTSC | 2021-04 C | 2021-04-22 | 17763.1911 | KB5001384 |
| LTSC | 2021-04 B | 2021-04-13 | 17763.1879 | KB5001342 |
| LTSC | 2021-03 C | 2021-03-25 | 17763.1852 | KB5000854 |
| LTSC | 2021-03 OOB | 2021-03-18 | 17763.1823 | KB5001638 |
| LTSC | 2021-03 OOB | 2021-03-15 | 17763.1821 | KB5001568 |
| LTSC | 2021-03 B | 2021-03-09 | 17763.1817 | KB5000822 |
| LTSC | 2021-02 C | 2021-02-16 | 17763.1790 | KB4601383 |
| LTSC | 2021-02 B | 2021-02-09 | 17763.1757 | KB4601345 |
| LTSC | 2021-01 C | 2021-01-21 | 17763.1728 | KB4598296 |
| LTSC | 2021-01 B | 2021-01-12 | 17763.1697 | KB4598230 |
| LTSC | 2020-12 B | 2020-12-08 | 17763.1637 | KB4592440 |
| LTSC | 2020-11 C | 2020-11-19 | 17763.1613 | KB4586839 |
| LTSC | 2020-11 OOB | 2020-11-17 | 17763.1579 | KB4594442 |
| LTSC | 2020-11 B | 2020-11-10 | 17763.1577 | KB4586793 |
| LTSC | 2020-10 C | 2020-10-20 | 17763.1554 | KB4580390 |
| LTSC | 2020-10 B | 2020-10-13 | 17763.1518 | KB4577668 |
| LTSC | 2020-09 C | 2020-09-16 | 17763.1490 | KB4577069 |
| LTSC | 2020-09 B | 2020-09-08 | 17763.1457 | KB4570333 |
| LTSC | 2020-08 C | 2020-08-20 | 17763.1432 | KB4571748 |
| LTSC | 2020-08 B | 2020-08-11 | 17763.1397 | KB4565349 |
| LTSC | 2020-07 C | 2020-07-21 | 17763.1369 | KB4559003 |
| LTSC | 2020-07 B | 2020-07-14 | 17763.1339 | KB4558998 |
| LTSC | 2020-06 OOB | 2020-06-16 | 17763.1294 | KB4567513 |
| LTSC | 2020-06 B | 2020-06-09 | 17763.1282 | KB4561608 |
| LTSC | 2020-05 B | 2020-05-12 | 17763.1217 | KB4551853 |
| LTSC | 2020-04 C | 2020-04-21 | 17763.1192 | KB4550969 |
| LTSC | 2020-04 B | 2020-04-14 | 17763.1158 | KB4549949 |
| LTSC | 2020-03 OOB | 2020-03-30 | 17763.1132 | KB4554354 |
| LTSC | 2020-03 C | 2020-03-17 | 17763.1131 | KB4541331 |
| LTSC | 2020-03 B | 2020-03-10 | 17763.1098 | KB4538461 |
| LTSC | 2020-02 C | 2020-02-25 | 17763.1075 | KB4537818 |
| LTSC | 2020-02 B | 2020-02-11 | 17763.1039 | KB4532691 |
| LTSC | 2020-01 C | 2020-01-23 | 17763.1012 | KB4534321 |
| LTSC | 2020-01 B | 2020-01-14 | 17763.973 | KB4534273 |
| LTSC | 2019-12 B | 2019-12-10 | 17763.914 | KB4530715 |
| LTSC | 2019-11 B | 2019-11-12 | 17763.864 | KB4523205 |
| LTSC | 2019-10 C | 2019-10-15 | 17763.832 | KB4520062 |
| LTSC | 2019-10 B | 2019-10-08 | 17763.805 | KB4519338 |
| LTSC | 2019-09 OOB | 2019-10-03 | 17763.775 | KB4524148 |
| LTSC | 2019-09 C | 2019-09-24 | 17763.774 | KB4516077 |
| LTSC | 2019-09 OOB | 2019-09-23 | 17763.740 | KB4522015 |
| LTSC | 2019-09 B | 2019-09-10 | 17763.737 | KB4512578 |
| LTSC | 2019-08 C | 2019-08-17 | 17763.720 | KB4512534 |
| LTSC | 2019-08 B | 2019-08-13 | 17763.678 | KB4511553 |
| LTSC | 2019-07 C | 2019-07-22 | 17763.652 | KB4505658 |
| LTSC | 2019-07 B | 2019-07-09 | 17763.615 | KB4507469 |
| LTSC | 2019-06 OOB | 2019-06-26 | 17763.593 | KB4509479 |
| LTSC | 2019-06 C | 2019-06-18 | 17763.592 | KB4501371 |
| LTSC | 2019-06 B | 2019-06-11 | 17763.557 | KB4503327 |
| LTSC | 2019-05 C | 2019-05-21 | 17763.529 | KB4497934 |
| LTSC | 2019-05 OOB | 2019-05-19 | 17763.504 | KB4505056 |
| LTSC | 2019-05 B | 2019-05-14 | 17763.503 | KB4494441 |
| LTSC | 2019-04 C | 2019-05-03 | 17763.475 | KB4495667 |
| LTSC | 2019-04 OOB | 2019-05-01 | 17763.439 | KB4501835 |
| LTSC | 2019-04 B | 2019-04-09 | 17763.437 | KB4493509 |
| LTSC | 2019-03 D | 2019-04-02 | 17763.404 | KB4490481 |
| LTSC | 2019-03 B | 2019-03-12 | 17763.379 | KB4489899 |
| LTSC | 2019-02 D | 2019-03-01 | 17763.348 | KB4482887 |
| LTSC | 2019-02 B | 2019-02-12 | 17763.316 | KB4487044 |
| LTSC | 2019-01 D | 2019-01-22 | 17763.292 | KB4476976 |
| LTSC | 2019-01 B | 2019-01-08 | 17763.253 | KB4480116 |
| LTSC | 2018-12 OOB | 2018-12-19 | 17763.195 | KB4483235 |
| LTSC | 2018-12 B | 2018-12-11 | 17763.194 | KB4471332 |
| LTSC | 2018-11 D | 2018-12-05 | 17763.168 | KB4469342 |
| LTSC | 2018-11 B | 2018-11-13 | 17763.134 | KB4467708 |
| LTSC | 2018-10 D | 2018-11-13 | 17763.107 | KB4464455 |
| LTSC | 2018-10 B | 2018-10-09 | 17763.55 | KB4464330 |
| LTSC | 2018-10 A | 2018-10-02 | 17763.1 |
(Windows Server 2016 Update History Table)
| Servicing Option | Update Type | Availability Date | Build | KB Article |
|---|---|---|---|---|
| LTSB | 2025-02 B | 2025-02-11 | 14393.7785 | KB5052006 |
| LTSB | 2025-01 B | 2025-01-14 | 14393.7699 | KB5049993 |
| LTSB | 2024-12 B | 2024-12-10 | 14393.7606 | KB5048671 |
| LTSB | 2024-11 B | 2024-11-12 | 14393.7515 | KB5046612 |
| LTSB | 2024-10 B | 2024-10-08 | 14393.7428 | KB5044293 |
| LTSB | 2024-09 B | 2024-09-10 | 14393.7336 | KB5043051 |
| LTSB | 2024-08 B | 2024-08-13 | 14393.7259 | KB5041773 |
| LTSB | 2024-07 B | 2024-07-09 | 14393.7159 | KB5040434 |
| LTSB | 2024-06 B | 2024-06-11 | 14393.7070 | KB5039214 |
| LTSB | 2024-05 B | 2024-05-14 | 14393.6981 | KB5037763 |
| LTSB | 2024-04 B | 2024-04-09 | 14393.6897 | KB5036899 |
| LTSB | 2024-03 OOB | 2024-03-22 | 14393.6800 | KB5037423 |
| LTSB | 2024-03 B | 2024-03-12 | 14393.6796 | KB5035855 |
| LTSB | 2024-02 B | 2024-02-13 | 14393.6709 | KB5034767 |
| LTSB | 2024-01 B | 2024-01-09 | 14393.6614 | KB5034119 |
| LTSB | 2023-12 B | 2023-12-12 | 14393.6529 | KB5033373 |
| LTSB | 2023-11 B | 2023-11-14 | 14393.6452 | KB5032197 |
| LTSB | 2023-10 B | 2023-10-10 | 14393.6351 | KB5031362 |
| LTSB | 2023-09 B | 2023-09-12 | 14393.6252 | KB5030213 |
| LTSB | 2023-08 B | 2023-08-08 | 14393.6167 | KB5029242 |
| LTSB | 2023-07 B | 2023-07-11 | 14393.6085 | KB5028169 |
| LTSB | 2023-06 OOB | 2023-06-23 | 14393.5996 | KB5028623 |
| LTSB | 2023-06 B | 2023-06-13 | 14393.5989 | KB5027219 |
| LTSB | 2023-05 B | 2023-05-09 | 14393.5921 | KB5026363 |
| LTSB | 2023-04 B | 2023-04-11 | 14393.5850 | KB5025228 |
| LTSB | 2023-03 B | 2023-03-14 | 14393.5786 | KB5023697 |
| LTSB | 2023-02 B | 2023-02-14 | 14393.5717 | KB5022838 |
| LTSB | 2023-01 B | 2023-01-10 | 14393.5648 | KB5022289 |
| LTSB | 2022-12 B | 2022-12-13 | 14393.5582 | KB5021235 |
| LTSB | 2022-11 OOB | 2022-11-17 | 14393.5502 | KB5021654 |
| LTSB | 2022-11 B | 2022-11-08 | 14393.5501 | KB5019964 |
| LTSB | 2022-10 OOB | 2022-10-18 | 14393.5429 | KB5020439 |
| LTSB | 2022-10 B | 2022-10-11 | 14393.5427 | KB5018411 |
| LTSB | 2022-09 B | 2022-09-13 | 14393.5356 | KB5017305 |
| LTSB | 2022-08 B | 2022-08-09 | 14393.5291 | KB5016622 |
| LTSB | 2022-07 B | 2022-07-12 | 14393.5246 | KB5015808 |
| LTSB | 2022-06 B | 2022-06-14 | 14393.5192 | KB5014702 |
| LTSB | 2022-05 OOB | 2022-05-19 | 14393.5127 | KB5015019 |
| LTSB | 2022-05 B | 2022-05-10 | 14393.5125 | KB5013952 |
| LTSB | 2022-04 B | 2022-04-12 | 14393.5066 | KB5012596 |
| LTSB | 2022-03 B | 2022-03-08 | 14393.5006 | KB5011495 |
| LTSB | 2022-02 B | 2022-02-08 | 14393.4946 | KB5010359 |
| LTSB | 2022-01 OOB | 2022-01-17 | 14393.4889 | KB5010790 |
| LTSB | 2022-01 B | 2022-01-11 | 14393.4886 | KB5009546 |
| LTSB | 2022-01 OOB | 2022-01-05 | 14393.4827 | KB5010195 |
| LTSB | 2021-12 B | 2021-12-14 | 14393.4825 | KB5008207 |
| LTSB | 2021-11 OOB | 2021-11-14 | 14393.4771 | KB5008601 |
| LTSB | 2021-11 B | 2021-11-09 | 14393.4770 | KB5007192 |
| LTSB | 2021-10 B | 2021-10-12 | 14393.4704 | KB5006669 |
| LTSB | 2021-09 B | 2021-09-14 | 14393.4651 | KB5005573 |
| LTSB | 2021-08 B | 2021-08-10 | 14393.4583 | KB5005043 |
| LTSB | 2021-07 OOB | 2021-07-29 | 14393.4532 | KB5005393 |
| LTSB | 2021-07 B | 2021-07-13 | 14393.4530 | KB5004238 |
| LTSB | 2021-07 OOB | 2021-07-07 | 14393.4470 | KB5004948 |
| LTSB | 2021-06 B | 2021-06-08 | 14393.4467 | KB5003638 |
| LTSB | 2021-05 B | 2021-05-11 | 14393.4402 | KB5003197 |
| LTSB | 2021-04 B | 2021-04-13 | 14393.4350 | KB5001347 |
| LTSB | 2021-03 OOB | 2021-03-18 | 14393.4288 | KB5001633 |
| LTSB | 2021-03 B | 2021-03-09 | 14393.4283 | KB5000803 |
| LTSB | 2021-02 B | 2021-02-09 | 14393.4225 | KB4601318 |
| LTSB | 2021-01 B | 2021-01-12 | 14393.4169 | KB4598243 |
| LTSB | 2020-12 B | 2020-12-08 | 14393.4104 | KB4593226 |
| LTSB | 2020-11 OOB | 2020-11-19 | 14393.4048 | KB4594441 |
| LTSB | 2020-11 B | 2020-11-10 | 14393.4046 | KB4586830 |
| LTSB | 2020-10 B | 2020-10-13 | 14393.3986 | KB4580346 |
| LTSB | 2020-09 B | 2020-09-08 | 14393.3930 | KB4577015 |
| LTSB | 2020-08 B | 2020-08-11 | 14393.3866 | KB4571694 |
| LTSB | 2020-07 B | 2020-07-14 | 14393.3808 | KB4565511 |
| LTSB | 2020-06 OOB | 2020-06-18 | 14393.3755 | KB4567517 |
| LTSB | 2020-06 B | 2020-06-09 | 14393.3750 | KB4561616 |
| LTSB | 2020-05 B | 2020-05-12 | 14393.3686 | KB4556813 |
| LTSB | 2020-04 C | 2020-04-21 | 14393.3659 | KB4550947 |
| LTSB | 2020-04 B | 2020-04-14 | 14393.3630 | KB4550929 |
| LTSB | 2020-03 C | 2020-03-17 | 14393.3595 | KB4541329 |
| LTSB | 2020-03 B | 2020-03-10 | 14393.3564 | KB4540670 |
| LTSB | 2020-02 C | 2020-02-25 | 14393.3542 | KB4537806 |
| LTSB | 2020-02 B | 2020-02-11 | 14393.3504 | KB4537764 |
| LTSB | 2020-01 C | 2020-01-23 | 14393.3474 | KB4534307 |
| LTSB | 2020-01 B | 2020-01-14 | 14393.3443 | KB4534271 |
| LTSB | 2019-12 B | 2019-12-10 | 14393.3384 | KB4530689 |
| LTSB | 2019-11 B | 2019-11-12 | 14393.3326 | KB4525236 |
| LTSB | 2019-10 C | 2019-10-15 | 14393.3300 | KB4519979 |
| LTSB | 2019-10 B | 2019-10-08 | 14393.3274 | KB4519998 |
| LTSB | 2019-09 OOB | 2019-10-03 | 14393.3243 | KB4524152 |
| LTSB | 2019-09 C | 2019-09-24 | 14393.3242 | KB4516061 |
| LTSB | 2019-09 OOB | 2019-09-23 | 14393.3206 | KB4522010 |
| LTSB | 2019-09 B | 2019-09-10 | 14393.3204 | KB4516044 |
| LTSB | 2019-08 C | 2019-08-17 | 14393.3181 | KB4512495 |
| LTSB | 2019-08 B | 2019-08-13 | 14393.3144 | KB4512517 |
| LTSB | 2019-07 C | 2019-07-16 | 14393.3115 | KB4507459 |
| LTSB | 2019-07 B | 2019-07-09 | 14393.3085 | KB4507460 |
| LTSB | 2019-06 OOB | 2019-06-27 | 14393.3056 | KB4509475 |
| LTSB | 2019-06 C | 2019-06-18 | 14393.3053 | KB4503294 |
| LTSB | 2019-06 B | 2019-06-11 | 14393.3025 | KB4503267 |
| LTSB | 2019-05 C | 2019-05-23 | 14393.2999 | KB4499177 |
| LTSB | 2019-05 OOB | 2019-05-19 | 14393.2972 | KB4505052 |
| LTSB | 2019-05 B | 2019-05-14 | 14393.2969 | KB4494440 |
| LTSB | 2019-04 C | 2019-04-25 | 14393.2941 | KB4493473 |
| LTSB | 2019-04 OOB | 2019-04-25 | 14393.2908 | KB4499418 |
| LTSB | 2019-04 B | 2019-04-09 | 14393.2906 | KB4493470 |
| LTSB | 2019-03 C | 2019-03-19 | 14393.2879 | KB4489889 |
| LTSB | 2019-03 B | 2019-03-12 | 14393.2848 | KB4489882 |
| LTSB | 2019-02 C | 2019-02-19 | 14393.2828 | KB4487006 |
| LTSB | 2019-02 B | 2019-02-12 | 14393.2791 | KB4487026 |
| LTSB | 2019-01 C | 2019-01-17 | 14393.2759 | KB4480977 |
| LTSB | 2019-01 B | 2019-01-08 | 14393.2724 | KB4480961 |
| LTSB | 2018-12 OOB | 2018-12-19 | 14393.2670 | KB4483229 |
| LTSB | 2018-12 B | 2018-12-11 | 14393.2665 | KB4471321 |
| LTSB | 2018-11 OOB | 2018-12-03 | 14393.2641 | KB4478877 |
| LTSB | 2018-11 C | 2018-11-27 | 14393.2639 | KB4467684 |
| LTSB | 2018-11 B | 2018-11-13 | 14393.2608 | KB4467691 |
| LTSB | 2018-10 C | 2018-10-18 | 14393.2580 | KB4462928 |
| LTSB | 2018-10 B | 2018-10-09 | 14393.2551 | KB4462917 |
| LTSB | 2018-09 C | 2018-09-20 | 14393.2515 | KB4457127 |
| LTSB | 2018-09 B | 2018-09-11 | 14393.2485 | KB4457131 |
| LTSB | 2018-08 C | 2018-08-30 | 14393.2457 | KB4343884 |
| LTSB | 2018-08 B | 2018-08-14 | 14393.2430 | KB4343887 |
| LTSB | 2018-07 OOB | 2018-07-30 | 14393.2396 | KB4346877 |
| LTSB | 2018-07 C | 2018-07-24 | 14393.2395 | KB4338822 |
| LTSB | 2018-07 OOB | 2018-07-16 | 14393.2368 | KB4345418 |
| LTSB | 2018-07 B | 2018-07-10 | 14393.2363 | KB4338814 |
| LTSB | 2018-06 C | 2018-06-21 | 14393.2339 | KB4284833 |
| LTSB | 2018-06 B | 2018-06-12 | 14393.2312 | KB4284880 |
| LTSB | 2018-05 C | 2018-05-17 | 14393.2273 | KB4103720 |
| LTSB | 2018-05 B | 2018-05-08 | 14393.2248 | KB4103723 |
| LTSB | 2018-04 C | 2018-04-17 | 14393.2214 | KB4093120 |
| LTSB | 2018-04 B | 2018-04-10 | 14393.2189 | KB4093119 |
| LTSB | 2018-03 OOB | 2018-03-29 | 14393.2156 | KB4096309 |
| LTSB | 2018-03 C | 2018-03-22 | 14393.2155 | KB4088889 |
| LTSB | 2018-03 B | 2018-03-13 | 14393.2125 | KB4088787 |
| LTSB | 2018-02 C | 2018-02-22 | 14393.2097 | KB4077525 |
| LTSB | 2018-02 B | 2018-02-13 | 14393.2068 | KB4074590 |
| LTSB | 2018-01 C | 2018-01-17 | 14393.2035 | KB4057142 |
| LTSB | 2018-01 B | 2018-01-03 | 14393.2007 | KB4056890 |
| LTSB | 2017-12 B | 2017-12-12 | 14393.1944 | KB4053579 |
| LTSB | 2017-11 C | 2017-11-27 | 14393.1914 | KB4051033 |
| LTSB | 2017-11 B | 2017-11-14 | 14393.1884 | KB4048953 |
| LTSB | 2017-10 OOB | 2017-11-02 | 14393.1797 | KB4052231 |
| LTSB | 2017-10 C | 2017-10-17 | 14393.1794 | KB4041688 |
| LTSB | 2017-10 B | 2017-10-10 | 14393.1770 | KB4041691 |
| LTSB | 2017-09 C | 2017-09-28 | 14393.1737 | KB4038801 |
| LTSB | 2017-09 B | 2017-09-12 | 14393.1715 | KB4038782 |
| LTSB | 2017-08 OOB | 2017-08-28 | 14393.1670 | KB4039396 |
| LTSB | 2017-08 C | 2017-08-16 | 14393.1613 | KB4034661 |
| LTSB | 2017-08 B | 2017-08-08 | 14393.1593 | KB4034658 |
| LTSB | 2017-08 OOB | 2017-08-07 | 14393.1537 | KB4038220 |
| LTSB | 2017-07 C | 2017-07-18 | 14393.1532 | KB4025334 |
| LTSB | 2017-07 B | 2017-07-11 | 14393.1480 | KB4025339 |
| LTSB | 2017-06 C | 2017-06-27 | 14393.1378 | KB4022723 |
| LTSB | 2017-06 B | 2017-06-13 | 14393.1358 | KB4022715 |
| LTSB | 2017-05 B | 2017-05-09 | 14393.1198 | KB4019472 |
| LTSB | 2017-04 B | 2017-04-11 | 14393.1066 | KB4015217 |
| LTSB | 2017-03 OOB | 2017-03-20 | 14393.969 | KB4015438 |
| LTSB | 2017-03 B | 2017-03-14 | 14393.953 | KB4013429 |
| LTSB | 2017-01 B | 2017-01-10 | 14393.693 | KB3213986 |
| LTSB | 2016-12 B | 2016-12-13 | 14393.576 | KB3206632 |
| LTSB | 2016-11 C | 2016-12-09 | 14393.479 | KB3201845 |
| LTSB | 2016-11 B | 2016-11-08 | 14393.447 | KB3200970 |
| LTSB | 2016-10 D | 2016-10-27 | 14393.351 | KB3197954 |
| LTSB | 2016-10 B | 2016-10-11 | 14393.321 | KB3194798 |
| LTSB | 2016-09 D | 2016-09-29 | 14393.222 | KB3194496 |
| LTSB | 2016-09 B | 2016-09-20 | 14393.187 | KB3193494 |
| LTSB | 2016-09 B | 2016-09-13 | 14393.187 | KB3189866 |
| LTSB | 2016-08 E | 2016-08-31 | 14393.105 | KB3176938 |
| LTSB | 2016-08 D | 2016-08-23 | 14393.82 | KB3176934 |
| LTSB | 2016-08 B | 2016-08-09 | 14393.51 | KB3176495 |
| LTSB | 2016-08 A | 2016-08-02 | 14393.10 | KB3176929 |
To delve deeper into the specifics of each update, including detailed release notes and known issues, you can follow the provided links to the respective KB articles for each update and version.
Choosing the Right Channel for Your Needs
The decision between LTSC and AC hinges on your organization’s priorities and workload characteristics.
- Choose LTSC if: You prioritize long-term stability, predictability, and extended support. It is the ideal choice for traditional workloads, core infrastructure, and environments where minimizing change is paramount.
- Choose AC if: You value rapid innovation, need access to the latest features, and are focused on modern applications, containers, and microservices. It is suitable for agile environments, cloud-native deployments, and organizations that want to stay at the cutting edge of server technology.
Ultimately, understanding the nuances of each channel and aligning them with your specific requirements is key to maximizing the benefits of Windows Server in your IT landscape.
