Complete Microsoft Exchange Server Version History & Build Numbers
The definitive, most comprehensive Exchange Server version reference available anywhere. This page contains the complete history of Microsoft Exchange Server versions, build numbers, release dates, and compatibility matrices from Exchange Server 4.0 (1996) through the latest Exchange Server Subscription Edition (2025).
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This comprehensive database includes: Complete build numbers, Exact release dates, Schema versions, .NET Framework compatibility, Operating system support matrices, Functional level requirements
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Exchange SE
ACTIVE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SE | CU1 |  | [Unreleased] | |||||||||
| SE | RTM Sep26 SU 10  |   |  | 2026-09-08 | 15.02.2562.049 | 17003 | 13243 | 16763 |   |      | | |
| SE | RTM Aug26 SU 9 | | | 2026-08-11 | 15.02.2562.046 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Jul26 SU 8 | | | 2026-07-14 | 15.02.2562.045 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Jun26 SU 7 | | | 2026-06-09 | 15.02.2562.043 | 17003 | 13243 | 16763 | | | | |
| SE | RTM May26 HU 6 | |  | 2026-05-07 | 15.02.2562.041 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Feb26 SU 5 | | | 2026-02-10 | 15.02.2562.037 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Dec25 SU 4 | | | 2025-12-09 | 15.02.2562.035 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Oct25 SU 3 | | | 2025-10-14 | 15.02.2562.029 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Sep25 HU 2 | | | 2025-09-08 | 15.02.2562.027 | 17003 | 13243 | 16763 | | | | |
| SE | RTM Aug25 SU 1 | | | 2025-08-12 | 15.02.2562.020 | 17003 | 13243 | 16763 | | | | |
| SE | RTM | |  | 2025-07-01 | 15.02.2562.017 | 17003 | 13243 | 16763 | | | | |
Exchange 2019
END-OF-LIFE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | CU15 Sep26 SU | | | 2026-09-08 | 15.02.1748.051 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Aug26 SU | | | 2026-08-11 | 15.02.1748.049 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Jul26 SU | | | 2026-07-14 | 15.02.1748.048 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Jun26 SU | | | 2026-06-09 | 15.02.1748.046 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Feb26 SU | | | 2026-02-10 | 15.02.1748.043 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Dec25 SU | | | 2025-12-09 | 15.02.1748.042 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Oct25 SU | | | 2025-10-14 | 15.02.1748.039 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Sep25 HU | | | 2025-09-08 | 15.02.1748.037 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Aug25 SU | | | 2025-08-12 | 15.02.1748.036 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 May25 HU | | | 2025-05-29 | 15.02.1748.026 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 Apr25 HU | | | 2025-04-18 | 15.02.1748.024 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU15 | | | 2025-02-10 | 15.02.1748.010 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU14 Sep26 SU | | | 2026-09-08 | 15.02.1744.046 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU14 Aug26 SU | | | 2026-08-11 | 15.02.1744.044 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU14 Jul26 SU | | | 2026-07-14 | 15.02.1744.043 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU14 Jun26 SU | | | 2026-06-09 | 15.02.1744.041 | 17003 | 13243 | 16763 | | | | |
| 2019 | CU14 Feb26 SU | | | 2026-02-10 | 15.02.1544.039 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Dec25 SU | | | 2025-12-09 | 15.02.1544.037 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Oct25 SU | | | 2025-10-14 | 15.02.1544.036 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Sep25 HU | | | 2025-09-08 | 15.02.1544.034 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Aug25 SU | | | 2025-08-12 | 15.02.1544.033 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 May25 HU | | | 2025-05-29 | 15.02.1544.027 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Apr25 HU | | | 2025-04-18 | 15.02.1544.025 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Nov24 SUv2 | | | 2024-11-27 | 15.02.1544.014 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Nov24 SU | | | 2024-11-12 | 15.02.1544.013 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Apr24 HU | | | 2024-04-23 | 15.02.1544.011 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 Mar24 SU | | | 2024-03-12 | 15.02.1544.009 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU14 | | | 2024-02-13 | 15.02.1544.004 | 17003 | 13243 | 16762 | | | | |
| 2019 | CU13 Nov24 SUv2 | | | 2024-11-27 | 15.02.1258.039 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Nov24 SU | | | 2024-11-12 | 15.02.1258.038 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Apr24 HU | | | 2024-04-23 | 15.02.1258.034 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Mar24 SU | | | 2024-03-12 | 15.02.1258.032 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Nov23 SU | | | 2023-11-14 | 15.02.1258.028 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Oct23 SU | | | 2023-10-10 | 15.02.1258.027 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Aug23 SUv2 | | | 2023-08-15 | 15.02.1258.025 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Aug23 SU | | | 2023-08-08 | 15.02.1258.023 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 Jun23 SU | | | 2023-06-13 | 15.02.1258.016 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU13 | | | 2023-05-03 | 15.02.1258.012 | 17003 | 13243 | 16761 | | | | |
| 2019 | CU12 Nov23 SU | | | 2023-11-14 | 15.02.1118.040 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Oct23 SU | | | 2023-10-10 | 15.02.1118.039 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Aug23 SUv2 | | | 2023-08-15 | 15.02.1118.037 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Aug23 SU | | | 2023-08-08 | 15.02.1118.036 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Jun23 SU | | | 2023-06-13 | 15.02.1118.030 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Mar23 SU | | | 2023-03-14 | 15.02.1118.026 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Feb23 SU | | | 2023-02-14 | 15.02.1118.025 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Jan23 SU | | | 2023-01-10 | 15.02.1118.021 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Nov22 SU | | | 2022-11-08 | 15.02.1118.020 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Oct22 SU | | | 2022-10-11 | 15.02.1118.015 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 Aug22 SU | | | 2022-08-09 | 15.02.1118.012 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 May22 SU | | | 2022-05-10 | 15.02.1118.009 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU12 | | | 2022-04-20 | 15.02.1118.007 | 17003 | 13243 | 16760 | | | | |
| 2019 | CU11 Mar23 SU | | | 2023-03-14 | 15.02.0986.042 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Feb23 SU | | | 2023-02-14 | 15.02.0986.041 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Jan23 SU | | | 2023-01-10 | 15.02.0986.037 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Nov22 SU | | | 2022-11-08 | 15.02.0986.036 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Oct22 SU | | | 2022-10-11 | 15.02.0986.030 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Aug22 SU | | | 2022-08-09 | 15.02.0986.029 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 May22 SU | | | 2022-05-10 | 15.02.0986.026 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Mar22 SU | | | 2022-03-08 | 15.02.0986.022 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Jan22 SU | | | 2022-01-11 | 15.02.0986.015 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Nov21 SU | | | 2021-11-09 | 15.02.0986.014 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 Oct21 SU | | | 2021-10-12 | 15.02.0986.009 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU11 | | | 2021-09-28 | 15.02.0986.005 | 17003 | 13242 | 16759 | | | | |
| 2019 | CU10 Mar22 SU | | | 2022-03-08 | 15.02.0922.027 | 17003 | 13241 | 16758 | | | | |
| 2019 | CU10 Jan22 SU | | | 2022-01-11 | 15.02.0922.020 | 17003 | 13241 | 16758 | | | | |
| 2019 | CU10 Nov21 SU | | | 2021-11-09 | 15.02.0922.019 | 17003 | 13241 | 16758 | | | | |
| 2019 | CU10 Oct21 SU | | | 2021-10-12 | 15.02.0922.014 | 17003 | 13241 | 16758 | | | | |
| 2019 | CU10 Jul21 SU | | | 2021-07-13 | 15.02.0922.013 | 17003 | 13241 | 16758 | | | | |
| 2019 | CU10 | | 2021-06-29 | 15.02.0922.007 | 17003 | 13241 | 16758 | | | | | |
| 2019 | CU9 Jul21 SU | | | 2021-07-13 | 15.02.0858.015 | 17002 | 13240 | 16757 | | | | |
| 2019 | CU9 May21 SU | | | 2021-05-11 | 15.02.0858.012 | 17002 | 13240 | 16757 | | | | |
| 2019 | CU9 Apr21 SU | | | 2021-04-13 | 15.02.0858.010 | 17002 | 13240 | 16757 | | | | |
| 2019 | CU9 | | 2021-03-16 | 15.02.0858.005 | 17002 | 13240 | 16757 | | | | | |
| 2019 | CU8 May21 SU | | | 2021-05-11 | 15.02.0792.015 | 17002 | 13239 | 16756 | | | | |
| 2019 | CU8 Apr21 SU | | | 2021-04-13 | 15.02.0792.013 | 17002 | 13239 | 16756 | | | | |
| 2019 | CU8 Mar21 SU | | | 2021-03-02 | 15.02.0792.010 | 17002 | 13239 | 16756 | | | | |
| 2019 | CU8 | | 2020-12-15 | 15.02.0792.003 | 17002 | 13239 | 16756 | | | | | |
| 2019 | CU7 Mar21 SU | | | 2021-03-02 | 15.02.0721.013 | 17001 | 13237 | 16754 | | | | |
| 2019 | CU7 | | 2020-09-15 | 15.02.0721.002 | 17001 | 13237 | 16754 | | | | | |
| 2019 | CU6 Mar21 SU | | | 2021-03-02 | 15.02.0659.012 | 17001 | 13237 | 16754 | | | | |
| 2019 | CU6 | | 2020-06-16 | 15.02.0659.004 | 17001 | 13237 | 16754 | | | | | |
| 2019 | CU5 Mar21 SU | | | 2021-03-02 | 15.02.0595.008 | 17001 | 13237 | 16754 | | | | |
| 2019 | CU5 | | 2020-03-17 | 15.02.0595.003 | 17001 | 13237 | 16754 | | | | | |
| 2019 | CU4 Mar21 SU | | | 2021-03-02 | 15.02.0529.013 | 17001 | 13237 | 16754 | | | | |
| 2019 | CU4 | | 2019-12-17 | 15.02.0529.005 | 17001 | 13237 | 16754 | | | | | |
| 2019 | CU3 Mar21 SU | | | 2021-03-02 | 15.02.0464.015 | 17001 | 13237 | 16754 |  | | | |
| 2019 | CU3 | | 2019-09-17 | 15.02.0464.005 | 17001 | 13237 | 16754 | | | | | |
| 2019 | CU2 Mar21 SU | | | 2021-03-02 | 15.02.0397.011 | 17001 | 13237 | 16754 | | | | |
| 2019 | CU2 | | 2019-06-18 | 15.02.0397.003 | 17001 | 13237 | 16754 | | | | | |
| 2019 | CU1 Mar21 SU | | | 2021-03-02 | 15.02.0330.011 | 17000 | 13236 | 16752 | | | | |
| 2019 | CU1 | | 2019-02-12 | 15.02.0330.005 | 17000 | 13236 | 16752 | | | | | |
| 2019 | RTM Mar21 SU | | | 2021-03-02 | 15.02.0221.018 | 17000 | 13236 | 16751 | | | | |
| 2019 | RTM | | 2018-10-22 | 15.02.0221.012 | 17000 | 13236 | 16751 | | | | | |
| 2019 | Prev |  | 2018-07-24 | 15.02.0196.000 | 15332 | 13236 | 16213 | | | | |
Exchange 2016
END-OF-LIFE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | CU23 Sep26 SU | | | 2026-09-08 | 15.01.2507.073 | 15334 | 13243 | 16223 | |  | | |
| 2016 | CU23 Aug26 SU | | | 2026-08-11 | 15.01.2507.072 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Jul26 SU | | | 2026-07-14 | 15.01.2507.071 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Jun26 SU | | | 2026-06-09 | 15.01.2507.069 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Feb26 SU | | | 2026-02-10 | 15.01.2507.066 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Dec25 SU | | | 2025-12-09 | 15.01.2507.063 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Oct25 SU | | | 2025-10-14 | 15.01.2507.061 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Sep25 HU | | | 2025-09-08 | 15.01.2507.059 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Aug25 SU | | | 2025-08-12 | 15.01.2507.058 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 May25 HU | | | 2025-05-29 | 15.01.2507.057 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Apr25 HU | | | 2025-04-18 | 15.01.2507.055 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Nov24 SU v2 | | | 2024-11-27 | 15.01.2507.044 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Nov24 SU | | | 2024-11-12 | 15.01.2507.043 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Apr24 HU | | | 2024-04-23 | 15.01.2507.039 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Mar24 SU | | | 2024-03-12 | 15.01.2507.037 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Nov23 SU | | | 2023-11-14 | 15.01.2507.035 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Oct23 SU | | | 2023-10-10 | 15.01.2507.034 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Aug23 SU v2 | | | 2023-08-15 | 15.01.2507.032 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Aug23 SU | | | 2023-08-08 | 15.01.2507.031 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Jun23 SU | | | 2023-06-13 | 15.01.2507.027 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Mar23 SU | | | 2023-03-14 | 15.01.2507.023 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Feb23 SU | | | 2023-02-14 | 15.01.2507.021 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Jan23 SU | | | 2023-01-10 | 15.01.2507.017 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Nov22 SU | | | 2022-11-08 | 15.01.2507.016 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Oct22 SU | | | 2022-10-11 | 15.01.2507.013 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 Aug22 SU | | | 2022-08-09 | 15.01.2507.012 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 May22 SU | | | 2022-05-10 | 15.01.2507.009 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU23 | | | 2022-04-20 | 15.01.2507.006 | 15334 | 13243 | 16223 | | | | |
| 2016 | CU22 Nov22 SU | | | 2021-11-08 | 15.01.2375.037 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 Oct22 SU | | | 2022-10-11 | 15.01.2375.032 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 Aug22 SU | | | 2022-08-09 | 15.01.2375.031 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 May22 SU | | | 2022-05-10 | 15.01.2375.028 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 Mar22 SU | | | 2022-03-08 | 15.01.2375.024 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 Jan22 SU | | | 2022-01-11 | 15.01.2375.018 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 Nov21 SU | | | 2021-11-09 | 15.01.2375.017 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 Oct21 SU | | | 2021-10-12 | 15.01.2375.012 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU22 | | | 2021-09-28 | 15.01.2375.007 | 15334 | 13242 | 16222 | | | | |
| 2016 | CU21 Mar22 SU | | | 2022-03-08 | 15.01.2308.027 | 15334 | 13241 | 16221 | | | | |
| 2016 | CU21 Jan22 SU | | | 2022-01-11 | 15.01.2308.021 | 15334 | 13241 | 16221 | | | | |
| 2016 | CU21 Nov21 SU | | | 2021-11-09 | 15.01.2308.020 | 15334 | 13241 | 16221 | | | | |
| 2016 | CU21 Oct21 SU | | | 2021-10-12 | 15.01.2308.015 | 15334 | 13241 | 16221 | | | | |
| 2016 | CU21 Jul21 SU | | | 2021-07-13 | 15.01.2308.014 | 15334 | 13241 | 16221 | | | | |
| 2016 | CU21 | | 2021-06-29 | 15.01.2308.008 | 15334 | 13241 | 16221 | | | | | |
| 2016 | CU20 Jul21 SU | | | 2021-07-13 | 15.01.2242.012 | 15333 | 13240 | 16220 | | | | |
| 2016 | CU20 May21 SU | | | 2021-05-11 | 15.01.2242.010 | 15333 | 13240 | 16220 | | | | |
| 2016 | CU20 Apr21 SU | | | 2021-04-13 | 15.01.2242.008 | 15333 | 13240 | 16220 | | | | |
| 2016 | CU20 | | 2021-03-16 | 15.01.2242.004 | 15333 | 13240 | 16220 | | | | | |
| 2016 | CU19 May21 SU | | | 2021-05-11 | 15.01.2176.014 | 15333 | 16219 | 13239 | | | | |
| 2016 | CU19 Apr21 SU | | | 2020-04-13 | 15.01.2176.012 | 15333 | 16219 | 13239 | | | | |
| 2016 | CU19 Mar21 SU | | | 2020-03-02 | 15.01.2176.009 | 15333 | 16219 | 13239 | | | | |
| 2016 | CU19 | | 2020-12-15 | 15.01.2176.002 | 15333 | 16219 | 13239 | | | | | |
| 2016 | CU18 Mar21 SU | | | 2020-03-02 | 15.01.2106.013 | 15332 | 13236 | 16215 | |  |  | |
| 2016 | CU18 | | 2020-09-15 | 15.01.2106.002 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU17 Mar21 SU | | | 2020-03-02 | 15.01.2044.013 | 15332 | 13236 | 16215 | | | | |
| 2016 | CU17 | | 2020-06-16 | 15.01.2044.004 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU16 Mar21 SU | | | 2020-03-02 | 15.01.1979.008 | 15332 | 13236 | 16215 | | | | |
| 2016 | CU16 | | 2020-03-17 | 15.01.1979.003 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU15 Mar21 SU | | | 2020-03-02 | 15.01.1913.012 | 15332 | 13236 | 16215 | | | | |
| 2016 | CU15 | | 2019-12-17 | 15.01.1913.005 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU14 Mar21 SU | | | 2020-03-02 | 15.01.1847.012 | 15332 | 13236 | 16215 | | | | |
| 2016 | CU14 | | 2019-09-17 | 15.01.1847.003 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU13 Mar21 SU | | | 2020-03-02 | 15.01.1779.008 | 15332 | 13236 | 16215 | | | | |
| 2016 | CU13 | | 2019-06-18 | 15.01.1779.002 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU12 Mar21 SU | | | 2020-03-02 | 15.01.1713.010 | 15332 | 13236 | 16215 |  | | | |
| 2016 | CU12 | | 2019-02-12 | 15.01.1713.005 | 15332 | 13236 | 16215 | | | | | |
| 2016 | CU11 Mar21 SU | | | 2020-03-02 | 15.01.1591.018 | 15332 | 13236 | 16214 | |  | | |
| 2016 | CU11 | | 2018-10-16 | 15.01.1591.010 | 15332 | 13236 | 16214 | | | | | |
| 2016 | CU10 Mar21 SU | | | 2020-03-02 | 15.01.1531.012 | 15332 | 13236 | 16213 | | | | |
| 2016 | CU10 | | 2018-06-19 | 15.01.1531.003 | 15332 | 13236 | 16213 | | | | | |
| 2016 | CU9 Mar21 SU | | | 2020-03-02 | 15.01.1466.016 | 15332 | 13236 | 16213 |  | | | |
| 2016 | CU9 | | 2018-03-20 | 15.01.1466.003 | 15332 | 13236 | 16213 | | | | | |
| 2016 | CU8 Mar21 SU | | | 2020-03-02 | 15.01.1415.010 | 15332 | 13236 | 16213 | | | | |
| 2016 | CU8 | | 2017-12-19 | 15.01.1415.002 | 15332 | 13236 | 16213 | | | | | |
| 2016 | CU7 | | 2017-09-19 | 15.01.1261.035 | 15332 | 13236 | 16213 | | | | | |
| 2016 | CU6 | | 2017-06-27 | 15.01.1034.026 | 15330 | 13236 | 16213 | | |  | | |
| 2016 | CU5 | | 2017-03-21 | 15.01.0845.034 | 15326 | 13236 | 16213 | | | | | |
| 2016 | CU4 | | 2016-12-13 | 15.01.0669.032 | 15326 | 13236 | 16213 |   | | | | |
| 2016 | CU3 | | 2016-09-20 | 15.01.0544.027 | 15326 | 13236 | 16212 | | | | | |
| 2016 | CU2 | | 2016-06-21 | 15.01.0466.034 | 15325 | 13236 | 16212 | |  |  | | |
| 2016 | CU1 | | 2016-03-15 | 15.01.0396.030 | 15323 | 13236 | 16211 | | | | | |
| 2016 | RTM | | 2015-10-01 | 15.01.0225.042 | 15317 | 13236 | 16210 | | | | | |
| 2016 | Prev | | 2015-07-22 | 15.01.0225.016 | 15317 | 13236 | 16041 | | | | |
Exchange 2013
END-OF-LIFE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | CU23 Mar23 SU | | | 2023-03-14 | 15.00.1497.048 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Feb23 SU | | | 2023-02-14 | 15.00.1497.047 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Jan23 SU | | | 2023-01-10 | 15.00.1497.045 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Nov22 SU | | | 2022-11-08 | 15.00.1497.044 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Oct22 SU | | | 2022-10-11 | 15.00.1497.042 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Aug22 SU | | | 2022-08-09 | 15.00.1497.040 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 May22 SU | | | 2022-05-10 | 15.00.1497.036 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Mar22 SU | | | 2022-03-08 | 15.00.1497.033 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Jan22 SU | | | 2022-01-11 | 15.00.1497.028 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Nov21 SU | | | 2021-11-09 | 15.00.1497.026 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Oct21 SU | | | 2021-10-12 | 15.00.1497.024 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Jul21 SU | | | 2021-07-13 | 15.00.1497.023 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 May21 SU | | | 2021-05-11 | 15.00.1497.018 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Apr21 SU | | | 2021-04-13 | 15.00.1497.015 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 Mar21 SU | | | 2021-03-02 | 15.00.1497.012 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU23 | | | 2019-06-18 | 15.00.1497.002 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU22 Mar21 SU | | | 2021-02-12 | 15.00.1473.006 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU22 | | 2019-02-12 | 15.00.1473.003 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU21 Mar21 SU | | | 2021-03-02 | 15.00.1395.012 | 15312 | 13236 | 16130 | | | | |
| 2013 | CU21 | | 2018-06-19 | 15.00.1395.004 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU20 | | 2018-03-20 | 15.00.1367.003 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU19 | | 2017-12-19 | 15.00.1365.001 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU18 | | 2017-09-19 | 15.00.1347.002 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU17 | | 2017-06-27 | 15.00.1320.004 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU16 | | 2017-03-21 | 15.00.1293.002 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU15 | | 2016-12-13 | 15.00.1263.005 | 15312 | 13236 | 16130 |  | | | | |
| 2013 | CU14 | | 2016-09-20 | 15.00.1236.003 | 15312 | 13236 | 16130 |  | | | | |
| 2013 | CU13 | | 2016-06-21 | 15.00.1210.003 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU12 | | 2016-03-15 | 15.00.1178.004 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU11 | | 2015-12-15 | 15.00.1156.006 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU10 | | 2015-09-15 | 15.00.1130.007 | 15312 | 13236 | 16130 | | | | | |
| 2013 | CU9 | | 2015-06-17 | 15.00.1104.005 | 15312 | 13236 | 15965 | | | | | |
| 2013 | CU8 | | 2015-03-17 | 15.00.1076.009 | 15312 | 13236 | 15965 | | | | | |
| 2013 | CU7 | | | 2014-12-09 | 15.00.1044.025 | 15312 | 13236 | 15965 | | | | |
| 2013 | CU6 | | 2014-08-26 | 15.00.0995.029 | 15303 | 13236 | 15965 | | | | | |
| 2013 | CU5 | | 2014-05-27 | 15.00.0913.022 | 15300 | 13236 | 15870 | | | | | |
| 2013 | SP1 Mar21 SU | | | 2021-03-02 | 15.00.0847.064 | 15292 | 13236 | 15844 | | | | |
| 2013 | SP1 | | 2014-02-25 | 15.00.0847.032 | 15292 | 13236 | 15844 | | | | | |
| 2013 | CU3 | | 2013-11-25 | 15.00.0775.038 | 15283 | 13236 | 15763 | | | | | |
| 2013 | CU2 | | 2013-07-09 | 15.00.0712.024 | 15281 | 13236 | 15688 | | | | | |
| 2013 | CU1 | | 2013-04-02 | 15.00.0620.029 | 15254 | 13236 | 15614 | | | | | |
| 2013 | RTM | | 2012-12-03 | 15.00.0516.032 | 15137 | 13236 | 15449 | | | | |
Exchange 2010
END-OF-LIFE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | SP3 RU 32 | |  | 2021-03-02 | 14.03.0513.000 | 14734 | 13040 | 14322 |    | | | |
| 2010 | SP3 RU 31 | | | 2020-12-01 | 14.03.0509.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 30 | | | 2020-02-11 | 14.03.0496.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 29 | | | 2019-07-09 | 14.03.0468.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 28 | | | 2019-06-07 | 14.03.0461.001 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 27 | | | 2019-04-09 | 14.03.0452.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 26 | | | 2019-02-12 | 14.03.0442.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 25 | | | 2019-01-08 | 14.03.0435.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 24 | | | 2018-09-05 | 14.03.0419.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 23 | | | 2018-08-13 | 14.03.0417.001 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 22 | | | 2018-06-19 | 14.03.0411.000 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 21 | | 2018-05-07 | 14.03.0399.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 20 | | 2018-03-05 | 14.03.0389.001 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 19 | | 2017-12-19 | 14.03.0382.000 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 18 | | 2017-07-11 | 14.03.0361.001 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 17 | | 2017-03-21 | 14.03.0352.000 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 16 | | 2016-12-13 | 14.03.0336.000 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 15 | | 2016-09-20 | 14.03.0319.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 14 | | 2016-06-21 | 14.03.0301.000 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 13 | | 2016-03-15 | 14.03.0294.000 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 12 | | 2015-12-15 | 14.03.0279.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 11 | | 2015-09-15 | 14.03.0266.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 10 | | 2015-06-17 | 14.03.0248.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 9 | | 2015-03-17 | 14.03.0235.001 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 8 v2 | | 2014-12-12 | 14.03.0224.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 8 v1 (recalled) | | | 2014-12-09 | 14.03.0224.001 | 14734 | 13040 | 14322 | | | | |
| 2010 | SP3 RU 7 | | 2014-08-26 | 14.03.0210.002 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 6 | | 2014-05-27 | 14.03.0195.001 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 5 | | 2014-02-24 | 14.03.0181.006 | 14734 | 13040 | 14322 | | | | | |
| 2010 | SP3 RU 4 | | 2013-12-09 | 14.03.0174.001 | 14734 | 13040 | 14322 | | | |||
| 2010 | SP3 RU 3 | | 2013-11-25 | 14.03.0169.001 | 14734 | 13040 | 14322 | | | |||
| 2010 | SP3 RU 2 | | 2013-08-08 | 14.03.0158.001 | 14734 | 13040 | 14322 | | | |||
| 2010 | SP3 RU 1 | | 2013-05-29 | 14.03.0146.000 | 14734 | 13040 | 14322 | | | |||
| 2010 | SP3 RTM |  | 2013-02-12 | 14.03.0123.004 | 14734 | 13040 | 14322 | | | |||
| 2010 | SP2 RU 8 | | 2013-12-09 | 14.02.0390.003 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 7 | | 2013-08-03 | 14.02.0375.000 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 6 | | 2013-02-12 | 14.02.0342.003 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 5 v2 | | 2012-12-10 | 14.02.0328.010 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 5 | | 2012-11-13 | 14.03.0328.005 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 4 v2 | | 2012-10-09 | 14.02.0318.004 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 4 | | 2012-08-13 | 14.02.0318.002 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 3 | | 2012-05-29 | 14.02.0309.002 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 2 | | 2012-04-16 | 14.02.0298.004 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RU 1 | | 2012-02-13 | 14.02.0283.003 | 14732 | 13040 | 14247 | |||||
| 2010 | SP2 RTM | | 2011-12-04 | 14.2.247.5 | 14732 | 13040 | 14247 | |||||
| 2010 | SP1 RU 8 | | 2012-12-10 | 14.01.0438.000 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 7 v3 | | 2012-11-13 | 14.01.0421.003 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 7 v2 | | 2012-10-10 | 14.01.0421.002 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 7 | | 2012-08-08 | 14.01.0421.000 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 6 | | 2011-10-27 | 14.01.0355.002 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 5 | | 2011-08-23 | 14.1.339.1 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 4 | | 2011-07-27 | 14.1.323.6 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 3 | | 2011-04-06 | 14.01.0289.007 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 2 | | 2010-12-09 | 14.01.0270.001 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RU 1 | | 2010-10-04 | 14.1.255.2 | 14726 | 13040 | 13214 | |||||
| 2010 | SP1 RTM | | 2010-08-23 | 14.1.218.15 | 14726 | 13040 | 13214 | |||||
| 2010 | RU 5 | | 2010-12-13 | 14.0.726.0 | 14622 | 12639 | 12640 | |||||
| 2010 | RU 4 | | 2010-06-10 | 14.0.702.1 | 14622 | 12639 | 12640 | |||||
| 2010 | RU 3 | | 2010-04-13 | 14.0.694.0 | 14622 | 12639 | 12640 | |||||
| 2010 | RU 2 | | 2010-03-04 | 14.0.689.0 | 14622 | 12639 | 12640 | |||||
| 2010 | RU 1 | | 2009-12-09 | 14.0.682.1 | 14622 | 12639 | 12640 | |||||
| 2010 | RTM | | 2009-11-09 | 14.0.639.21 | 14622 | 12639 | 12640 |
Exchange Server 2007
END-OF-LIFE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | SP3 RU 23 | | 2017-03-21 | 08.03.0517.000 | 14625 | 11221 | 11222 |  | ||||
| 2007 | SP3 RU 22 | | 2016-12-13 | 08.03.0502.000 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 21 | | 2016-09-20 | 08.03.0485.001 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 20 | | 2016-06-21 | 08.03.0468.000 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 19 | | 2016-03-15 | 08.03.0459.000 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 18 | | 2015-12-01 | 08.03.0445.000 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 17 | | 2015-06-17 | 08.03.0417.001 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 16 | | 2015-03-17 | 08.03.0406.000 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 15 | | | 2014-12-09 | 08.03.0389.002 | 14625 | 11221 | 11222 | | |||
| 2007 | SP3 RU 14 | | 2014-08-26 | 08.03.0379.002 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 13 | | 2014-02-24 | 08.03.0348.002 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 12 | | 2013-12-09 | 08.03.0342.004 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 11 | | 2013-08-13 | 08.03.0327.001 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 10 | | 2013-02-11 | 08.03.0298.003 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 9 | | 2012-12-10 | 08.03.0297.002 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 8 v3 | | 2012-11-13 | 08.03.0279.006 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 8 v2 | | 2012-10-09 | 08.03.0279.005 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 8 | | 2012-08-13 | 08.03.0279.003 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 7 | | 2012-04-16 | 08.03.0264.000 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 6 | | 2012-01-26 | 8.03.0245.002 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 5 | | 2011-09-21 | 8.03.0213.001 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 4 | | 2011-05-28 | 8.03.0192.001 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 3 v2 | | 2011-03-30 | 8.03.0159.002 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 2 | | 2010-12-10 | 8.03.0137.003 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RU 1 | | 2010-09-09 | 8.03.0106.002 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP3 RTM | | 2010-06-07 | 8.03.0083.006 | 14625 | 11221 | 11222 | | ||||
| 2007 | SP2 RU 5 | | 2010-12-09 | 8.2.305.3 | 14622 | 11221 | 11222 | | ||||
| 2007 | SP2 RU 4 | | 2010-04-09 | 8.2.254.0 | 14622 | 11221 | 11222 | | ||||
| 2007 | SP2 RU 3 | | 2010-03-17 | 8.2.247.2 | 14622 | 11221 | 11222 | | ||||
| 2007 | SP2 RU 2 | | 2010-01-22 | 8.2.234.1 | 14622 | 11221 | 11222 | | ||||
| 2007 | SP2 RU 1 | | 2009-11-19 | 8.2.217.3 | 14622 | 11221 | 11222 | | ||||
| 2007 | SP2 RTM | | 2009-08-24 | 8.02.0176.002 | 14622 | 11221 | 11222 | | ||||
| 2007 | SP1 RU 10 | | 2010-04-13 | 8.1.436.0 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 9 | | 2009-07-16 | 8.1.393.1 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 8 | | 2009-05-19 | 8.1.375.2 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 7 | | 2009-03-18 | 8.1.359.2 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 6 | | 2009-02-10 | 8.1.340.1 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 5 | | 2008-11-20 | 8.1.336.1 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 4 | | 2008-10-07 | 8.1.311.3 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 3 | | 2008-07-08 | 8.1.291.2 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 2 | | 2008-05-09 | 8.1.278.2 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RU 1 | | 2008-02-28 | 8.1.263.1 | 11116 | 11221 | 11221 | | ||||
| 2007 | SP1 RTM | | 2007-11-29 | 8.01.0240.006 | 11116 | 11221 | 11221 | | ||||
| 2007 | RU 7 | | 2008-07-08 | 8.0.813.0 | 10637 | 10628 | 10666 | | ||||
| 2007 | RU 6 | | 2008-02-21 | 8.0.783.2 | 10637 | 10628 | 10666 | | ||||
| 2007 | RU 5 | | 2007-10-25 | 8.0.754.0 | 10637 | 10628 | 10666 | | ||||
| 2007 | RU 4 | | 2007-08-23 | 8.0.744.0 | 10637 | 10628 | 10666 | | ||||
| 2007 | RU 3 | | 2007-06-28 | 8.0.730.1 | 10637 | 10628 | 10666 | | ||||
| 2007 | RU 2 | | 2007-05-08 | 8.0.711.2 | 10637 | 10628 | 10666 | | ||||
| 2007 | RU 1 | | 2007-04-17 | 8.0.708.3 | 10637 | 10628 | 10666 | | ||||
| 2007 | RTM | | 2007-03-08 | 8.0.685.25 | 10637 | 10628 | 10666 | | |
Exchange Server 2003
END-OF-LIFE
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | SP2 v3 | | 2008-08-01 | 6.5.7654.4 | 6870 | 6936 | 6903 |  |  | |||
| 2003 | SP2 v2 | | 2008-03-01 | 6.5.7653.33 | 6870 | 6936 | 6903 | | | |||
| 2003 | SP2 | | 2005-10-19 | 6.5.7683 | 6870 | 6936 | 6903 | | | |||
| 2003 | SP1 | | 2004-05-25 | 6.5.7226 | 6870 | 6936 | 6903 | | | |||
| 2003 | RTM | | 2003-09-28 | 6.5.6944 | 6870 | 6936 | 6903 | | |
Exchange Server 2000
END-OF-LIFE
.NET has not been released yet
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000 | SP3 v6 | | 2008-08-01 | 6.0.6620.7 | 4406 | 4406 |  | |  | |||
| 2000 | SP3 v5 | | 2008-03-01 | 6.0.6620.5 | 4406 | 4406 | | | | |||
| 2000 | SP3 v4 | | 2004-08-01 | 6.0.6603 | 4406 | 4406 | | | | |||
| 2000 | SP3 v3 | | 2004-04-01 | 6.0.6556 | 4406 | 4406 | | | | |||
| 2000 | SP3 v2 | | 2003-09-01 | 6.0.6487 | 4406 | 4406 | | | | |||
| 2000 | SP3 | | 2002-07-18 | 6.0.6249 | 4406 | 4406 | | | | |||
| 2000 | SP2 | | 2001-11-29 | 6.0.5762 | 4397 | 4406 | | | | |||
| 2000 | SP1 | | 2001-06-21 | 6.0.4712 | 4397 | 4406 | | | | |||
| 2000 | RTM | | 2000-11-29 | 6.0.4417 | 4397 | 4406 | | | |
Exchange Server 5.5
END-OF-LIFE
Active Directory was not used as the directory
.NET has not been released yet
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.5 | SP4 | | 2000-11-01 | 5.5.2653 | | | | | | | ||
| 5.5 | SP3 | | 1999-09-09 | 5.5.2650 | | | | | | | ||
| 5.5 | SP2 | | 1998-12-23 | 5.5.2448 | | | | | | | ||
| 5.5 | SP1 | | 1998-08-05 | 5.5.2232 | | | | | | | ||
| 5.5 | RTM | | 1998-02-03 | 5.5.1960 | | | | | | |
Exchange Server 5.0
END-OF-LIFE
Active Directory was not used as the directory
.NET has not been released yet
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.0 | SP2 | | 1998-02-19 | 5.0.1460 | | | | | | |  | |
| 5.0 | SP1 | | 1997-06-18 | 5.0.1458 | | | | | | | | |
| 5.0 | RTM | | 1997-05-23 | 5.0.1457 | | | | | | | |
Exchange Server 4.0
END-OF-LIFE
Active Directory was not used as the directory
.NET has not been released yet
| Prod | Name | Ref | Type | Release Date | Version | Schema | Default | Conf | .Net | AD OS | FFL | EX OS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.0 | SP5 | | 1997-05-05 | 4.0.996 | | | | | | |  | |
| 4.0 | SP4 | | 1997-03-28 | 4.0.995 | | | | | | | | |
| 4.0 | SP3 | | 1997-10-29 | 4.0.994 | | | | | | | | |
| 4.0 | SP2 | | 1997-07-19 | 4.0.993 | | | | | | | | |
| 4.0 | SP1 | | 1997-05-01 | 4.0.838 | | | | | | | | |
| 4.0 | RTM | | 1996-06-11 | 4.0.837 | | | | | | | |
Major changes/features
-
Exchange SE
- CU1
- To Be Released
- RTM
- No changes between RTM and 2019 CU15 (except, EULA, version and name)
- CU1
-
Exchange 2019
- CU15
- Support for Windows Server 2025
- Partial TLS 1.3 support
- Certificate Management tasks is returning to ECP
- Feature Flighting
- Oracle Outside In Technology (OIT) replaced with DocParser
- CU14
- Extended Protection is now enabled by default and must be explicitly disabled during installation to prevent enablement.
- Supports .NET Framework 4.8.1 on Windows Server 2022
- CU13
- Mainly bug and security fixes
- CU12
- UNC paths in Exchange Server Powershell cmdlets is not longer allowed.
- CU11
- Emergency Mitigation service launched
- New prereq IIS URL Rewrite Module, Universal C Runtime in Windows
- CU10
- Exchange now supports AMSI integration
- CU1-9
- Mainly bug and security fixes
- RTM
- Custom configuration preservation
- Windows Server Core support
- Block external access to Exchange admin center (EAC) and the Exchange Management Shell (EMS)
- Modern authentication support for pure on-premises environmants
- Improved search infrastructure
- Faster, more reliable failovers
- Metacache database
- Support for up to 256GB of memory and 48 CPU cores
- Dynamic database cache
- Email address internationalization (EAI)
- Unified Messaging is removed
- CU15
Frequently Asked Questions
How do I check my Exchange Server version?
Run Get-ExchangeServer | ft Name, Edition, AdminDisplayVersion in Exchange Management Shell to get your current Exchange version and build number.
What's the difference between CU, SU, and HU updates?
- CU (Cumulative Update): Major updates with new features and fixes
- SU (Security Update): Security-focused patches released monthly
- HU (Hotfix Update): Bug fixes between regular update cycles
Additional Resources for Exchange Administrators
- Exchange Server Blog - Official Microsoft Exchange team updates
- Microsoft Exchange versions - Microsoft's planning tool
- Exchange Server Health Checker - Community health analysis script
Maintained by: GetPS.dev | Found this helpful? Share with your fellow Exchange administrators!