You can use the information in this article to verify the version of Exchange that is running in your organization.
This article is organized into sections by Exchange version (2010, 2013, 2016, 2019). Microsoft’s monthly “Patch Tuesday” releases are listed below, with their corresponding build numbers and release dates for each Service Pack (SP), Cumulative Update (CU), Security Update (SU), or Update Rollup (RU).
Links for the available downloads are also included.
| Be sure to visit Messageware Security Products for Microsoft Exchange Server. All enterprises with Exchange Servers should add security that provides on-premise systems with logon intelligence and security controls protecting the most widely used Exchange Server services, including OWA / Outlook Web, ECP, Autodiscover, ActiveSync, EWS, OAB, MAPI, Outlook Anywhere. Critical additions for all enterprises including those who believe they are protected by multi-factor authentication (MFA/2FA). |
Exchange Server 2019
The table in this section provides build numbers and general release dates for each version of Microsoft Exchange Server 2019.
| Exchange Server Version | Build Number | Release Date | KB & Link |
|---|---|---|---|
| Exchange Server 2019 CU14 Mar 24 SU * Latest 2019 CU 14 * Latest 2019 SU | 15.2.1544.9 15.02.1544.009 | March 12, 2024 | KB5036402 |
| Exchange Server 2019 CU14 2024H1 Feb 13 | 15.2.1544.04 15.02.1544.004 | February 13, 2024 | KB5035606 |
| Exchange Server 2019 CU13 Nov 23 SU | 15.2.1258.28 15.02.1258.028 | November 14, 2023 | KB5032146 |
| Exchange Server 2019 CU13 Oct 23 SU | 15.2.1258.27 15.02.1258.027 | October 10, 2023 | KB5030877 |
| Exchange Server 2019 CU13 Aug 23 SUv2 | 15.2.1258.25 15.02.1258.023 | August 15, 2023 | KB5030524 |
| Exchange Server 2019 CU13 Aug 23 SUv1 | 15.2.1258.23 15.02.1258.023 | August 8, 2023 (withdrawn Aug. 9) | KB5029388 |
| Exchange Server 2019 CU13 Jun 23 SU | 15.2.1258.16 15.02.1258.016 | June 13, 2023 | KB5026261 |
| Exchange Server 2019 CU13 (2023H1) | 15.2.1258.12 15.02.1258.012 | May 3, 2023 | KB5020999 |
| Exchange Server 2019 CU12 Mar 23 SU | 15.2.1118.26 15.02.1118.026 | March 14, 2023 | KB5024296 |
| Exchange Server 2019 CU12 Feb 23 SU | 15.2.1118.25 15.02.1118.025 | February 14, 2023 | KB5023038 |
| Exchange Server 2019 CU12 Jan 23 SU | 15.2.1118.21 15.02.1118.021 | January 10, 2023 | KB5022193 |
| Exchange Server 2019 CU12 Nov 22 SU | 15.2.1118.20 15.02.1118.020 | November 8, 2022 | KB5019758 |
| Exchange Server 2019 CU12 Oct 22 SU | 15.2.1118.15 15.2.1118.015 | October 11,2022 | KB5019077 |
| Exchange Server 2019 CU12 Aug 22 SU | 15.2.1118.12 15.02.1118.012 | August 9, 2022 | KB5015322 |
| Exchange Server 2019 CU12 May 22 SU | 15.2.1118.9 15.02.1118.009 | May 10, 2022 | KB5014261 |
| Exchange Server 2019 CU12 | 15.2.1118.7 15.02.1118.007 | April 20, 2022 | KB5011156 |
| Exchange Server 2019 CU11 Mar 22 SU | 15.2.986.22 15.02.0986.022 | March 8, 2022 | KB5012698 |
| Exchange Server 2019 CU11 Jan 22 SU | 15.2.986.15 15.02.0986.015 | January 11, 2022 | KB5008631 |
| Exchange Server 2019 CU11 Nov 21 SU | 15.2.986.14 15.02.0986.014 | November 9, 2021 | KB5007409 |
| Exchange Server 2019 CU11 Oct 21 SU | 15.2.986.9 15.02.0986.009 | October 12, 2021 | KB5007012 |
| Exchange Server 2019 CU11 | 15.2.986.5 15.02.0986.005 | September 28, 2021 | KB5005334 |
| Exchange Server 2019 CU10 Jan 22 SU | 15.2.922.20 15.02.0922.020 | January 11, 2022 | KB5008631 |
| Exchange Server 2019 CU10 Nov 21 SU | 15.2.922.19 15.02.0922.019 | November 9, 2021 | KB5007409 |
| Exchange Server 2019 CU10 Oct 21 SU | 15.2.922.14 15.02.0922.014 | October 12, 2021 | KB5007012 |
| Exchange Server 2019 CU10 Jul 21 SU | 15.2.922.13 15.02.0922.013 | July 13, 2021 | KB5004780 |
| Exchange Server 2019 CU10 | 15.2.922.7 15.02.0922.007 | June 29, 2021 | KB5003612 |
| Exchange Server 2019 CU9 Jul 21 SU | 15.2.858.15 15.02.0858.015 | July 13, 2021 | KB5004780 |
| Exchange Server 2019 CU9 May 2 SU | 15.2.858.12 15.02.0858.012 | May 11, 2021 | KB5003435 |
| Exchange Server 2019 CU9 Apr 2 SU | 15.2.858.10 15.02.0858.010 | April 13, 2021 | KB5001779 |
| Exchange Server 2019 CU9 | 15.2.858.5 15.02.0858.005 | March 16, 2021 | KB4602570 |
| Exchange Server 2019 CU8 May 21 SU | 15.2.792.15 15.02.0792.015 | May 11, 2021 | KB5003435 |
| Exchange Server 2019 CU8 Apr 21 SU | 15.2.792.13 15.02.0792.013 | April 13, 2021 | KB5001779 |
| Exchange Server 2019 CU8 Mar 21 SU | 15.2.792.10 15.02.0792.010 | March 2, 2021 | KB5000871 |
| Exchange Server 2019 CU8 | 15.2.792.3 15.02.0792.003 | December 15, 2020 | KB5001779 |
| Exchange Server 2019 CU7 Mar 21 SU | 15.2.721.13 15.02.0721.013 | March 2, 2021 | KB5000871 |
| Exchange Server 2019 CU7 | 15.2.721.2 15.02.0721.002 | September 15, 2020 | KB4571787 |
| Exchange Server 2019 CU6 Mar 21 SU | 15.2.659.12 15.02.0659.012 | March 2, 2021 | KB5000871 |
Exchange Server 2016
| Exchange Server Version | Build Number | Release Date | KB & Link |
|---|---|---|---|
| Exchange Server 2016 CU23 Mar 24S U * Latest 2016 CU 23 * Latest 2016 SU | 15.1.2507.37 15.01.2507.037 | March 12, 2024 | KB5036386 |
| Exchange Server 2016 CU23 Nov 23 SU | 15.1.2507.35 15.01.2507.035 | November 14, 2023 | KB5032147 |
| Exchange Server 2016 CU23 Oct 23 SU | 15.1.2507.34 15.01.2507.034 | October 10, 2023 | KB5030877 |
| Exchange Server 2016 CU23 Aug 23 SUv2 | 15.1.2507.32 15.01.2507.032 | August 15, 2023 | KB5030524 |
| Exchange Server 2016 CU23 Aug 23 SU | 15.1.2507.31 15.01.2507.031 | August 8, 2023 (withdrawn Aug. 9) | KB5029388 |
| Exchange Server 2016 CU23 Jun 23 SU | 15.1.2507.27 15.01.2507.027 | June 13, 2023 | KB5025903 |
| Exchange Server 2016 CU23 Mar 23 SU | 15.1.2507.23 15.01.2507.023 | March 14, 2023 | KB5024296 |
| Exchange Server 2016 CU23 Feb 23 SU | 15.1.2507.21 15.01.2507.021 | February 14, 2023 | KB5023038 |
| Exchange Server 2016 CU23 Jan 23 SU | 15.1.2507.17 15.01.2507.017 | January 10, 2023 | KB5022143 |
| Exchange Server 2016 CU23 Nov 22 SU | 15.1.2507.16 15.01.2507.016 | November 8, 2022 | KB5019758 |
| Exchange Server 2016 CU23 Oct 22 SU | 15.1.2507.13 15.01.2507.013 | October 11, 2022 | KB5019077 |
| Exchange Server 2016 CU23 Aug 22 SU | 15.1.2507.12 15.01.2507.012 | August 9, 2022 | KB5015322 |
| Exchange Server 2016 CU23 May 22 SU | 15.1.2507.9 15.01.2507.009 | May 10, 2022 | KB5014261 |
| Exchange Server 2016 CU23 | 15.1.2507.6 15.01.2507.006 | April 20, 2022 | KB5011155 |
| Exchange Server 2016 CU22 Mar 22 SU | 15.1.2375.24 15.01.2375.024 | March 8, 2022 | KB5012698 |
| Exchange Server 2016 CU22 Jan 22 SU | 15.1.2375.18 15.01.2375.018 | January 11, 2022 | KB5008631 |
| Exchange Server 2016 CU22 Nov 21 SU | 15.1.2375.17 15.01.2375.017 | November 9, 2021 | KB5007409 |
| Exchange Server 2016 CU22 Oct 21 SU | 15.1.2375.12 15.01.2375.012 | October 12, 2021 | KB5007012 |
| Exchange Server 2016 CU22 | 15.1.2375.7 15.01.2375.007 | September 28, 2021 | KB5005333 |
| Exchange Server 2016 CU21 Jan 22 SU | 15.1.2308.21 15.01.2308.021 | January 11, 2022 | KB5008631 |
| Exchange Server 2016 CU21 Nov 21 SU | 15.1.2308.20 15.01.2308.020 | November 9, 2021 | KB5007409 |
| Exchange Server 2016 CU21 Oct 21 SU | 15.1.2308.15 115.01.2308.015 | October 12, 2021 | KB5007012 |
| Exchange Server 2016 CU21 Jul 21 SU | 15.1.2308.14 15.01.2308.014 | July 13, 2021 | KB5004779 |
| Exchange Server 2016 CU21 | 15.1.2308.8 15.01.2308.008 | June 29, 2021 | KB5003611 |
| Exchange Server 2016 CU20 May 21 SU | 15.1.2242.10 15.01.2242.010 | May 11, 2021 | KB5003435 |
| Exchange Server 2016 CU20 Apr 21 SU | 15.1.2242.8 15.01.2242.008 | April 13, 2021 | KB5001779 |
| Exchange Server 2016 CU20 | 15.1.2242.4 15.01.2242.004 | March 16, 2021 | KB4602569 |
| Exchange Server 2016 CU19 May 21 SU | 15.1.2176.14 15.01.2176.014 | May 11, 2021 | KB5003435 |
| Exchange Server 2016 CU19 Apr 21 SU | 15.1.2176.12 15.01.2176.012 | April 13, 2021 | KB5001779 |
| Exchange Server 2016 CU19 Mar 21 SU | 15.2.792.3 15.02.0792.003 | March 2, 2021 | KB5000871 |
| Exchange Server 2016 CU19 | 15.1.2176.2 15.01.2176.002 | December 7, 2020 | KB4588884 |
| Exchange Server 2016 CU18 Mar 21 SU | 15.1.2106.13 15.01.2106.013 | March 2, 2021 | KB5000871 |
| Exchange Server 2016 CU18 | 15.1.2106.2 15.01.2106.002 | September 15, 2020 |
Exchange Server 2013
| Exchange Server Version | Build Number | Release Date | KB & Link |
|---|---|---|---|
| Exchange Server 2013 CU23 Mar 23 SU * Latest 2013 CU 23 * Latest 2013 SU | 15.0.1497.48 15.00.1497.048 | March 14, 2023 | KB5024296 |
| Exchange Server 2013 CU23 Feb 23 SU | 15.0.1497.47 15.00.1497.047 | February 14, 2023 | KB5023038 |
| Exchange Server 2013 CU23 Jan 23 SU | 15.0.1497.45 15.00.1497.045 | January 10, 2023 | KB5022188 |
| Exchange Server 2013 CU23 Nov 22 SU | 15.0.1497.44 15.00.1497.044 | November 8, 2022 | KB5019758 |
| Exchange Server 2013 CU23 Oct 22 SU | 15.0.1497.42 15.00.1497.042 | October 11, 2022 | KB5019076 |
| Exchange Server 2013 CU23 Aug 22 SU | 15.0.1497.40 15.00.1497.040 | August 9, 2022 | KB5015321 |
| Exchange Server 2013 CU23 May 22 SU | 15.0.1497.36 15.00.1497.036 | May 10, 2022 | KB5014260 |
| Exchange Server 2013 CU23 Mar 22 SU | 15.0.1497.33 15.00.1497.033 | March 8, 2022 | KB5010324 |
| Exchange Server 2013 CU23 Jan 22 SU | 15.0.1497.28 15.00.1497.028 | January 11, 2022 | KB5008631 |
| Exchange Server 2013 CU23 Nov 21 SU | 15.0.1497.26 15.00.1497.026 | November 9, 2021 | KB5007409 |
| Exchange Server 2013 CU23 Oct 21 SU | 15.0.1497.24 15.00.1497.024 | October 12, 2021 | KB5007011 |
| Exchange Server 2013 CU23 Jul 21 SU | 15.0.1497.23 15.00.1497.023 | July 13, 2021 | KB5004778 |
| Exchange Server 2013 CU23 May 21 SU | 15.0.1497.18 15.00.1497.018 | May 11, 2021 | KB5003435 |
| Exchange Server 2013 CU23 Apr 21 SU | 15.0.1497.15 15.00.1497.015 | April 13, 2021 | KB5001779 |
| Exchange Server 2013 CU23 Mar 21 SU | 15.0.1497.12 15.00.1497.012 | March 2, 2021 | KB5000871 |
| Exchange Server 2013 CU23 | 15.0.1497.2 15.00.1497.002 | June 18, 2019 | KB4489622 |
| Exchange Server 2013 CU22 Mar 21 SU | 15.0.1473.6 15.00.1473.006 | March 2, 2021 | KB5000871 |
| Exchange Server 2013 CU22 | 15.0.1473.3 15.00.1473.003 | February 12, 2019 | |
| Exchange Server 2013 CU21 Mar 21 SU | 15.0.1395.12 15.00.1395.012 | March 2, 2021 | KB5000871 |
| Exchange Server 2013 CU21 | 15.0.1395.4 15.00.1395.004 | June 19, 2018 | |
| Exchange Server 2013 CU20 | 15.0.1367.3 15.00.1367.003 | March 20, 2018 | |
| Exchange Server 2013 CU19 | 15.0.1365.1 15.00.1365.001 | December 19, 2017 |
Exchange Server 2010
Exchange Server 2010 SP3 build numbers
| Exchange Server Version | Build Number | Release Date | KB & Link |
|---|---|---|---|
| Update Rollup 32 for Exchange Server 2010 SP3 | 14.3.513.0 14.03.0513.000 | March 2, 2021 | KB5000978 |
| Update Rollup 31 for Exchange Server 2010 SP3 | 14.3.509.0 14.03.0509.000 | December 1, 2020 | KB4593467 |
| Update Rollup 30 for Exchange Server 2010 SP3 | 14.3.496.0 14.03.0496.000 | February 11, 2020 | KB4536989 |