Microsoft Exchange
Server AppMicrosoft Exchange subscription is the newest actively maintained release, currently at patch 15.2.2562.46. 3 of 11 tracked cycles remain supported. The next cycle scheduled to reach end-of-life is 2019, on October 14, 2025.
Support pattern
How Microsoft Exchange has behaved across the cycles tracked here, rather than what its policy documents state. Useful for judging how much runway a version is likely to have before you commit to it.
Support windows are getting longer: the most recent cycles run about 9 months longer than the earlier ones.
Computed from release and end-of-life dates tracked for Microsoft Exchange. Medians are used rather than averages so one unusually short or long release does not skew the figure. Cycles with no recorded end-of-life date are excluded from the support window.
Release lifecycle
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