Exchange Server build numbers and release dates
https://learn.microsoft.com/en-us/exchange/new-features/build-numbers-and-release-dates?view=exchserver-2019
WebAug 15, 2023 · Exchange Server 2019 CU13 Aug23SU: August 8, 2023: 15.2.1258.23: 15.02.1258.023 Exchange Server 2019 CU13 Jun23SU: June 13, 2023: 15.2.1258.16: 15.02.1258.016: Exchange Server 2019 CU13 (2023H1) May 3, 2023: 15.2.1258.12: 15.02.1258.012 Exchange Server 2019 CU12 Nov23SU: November 14, 2023: …
DA: 77 PA: 48 MOZ Rank: 12