End of life
Microsoft Server Exchange Server · 2013 CU23 SU21
All published support, including security fixes, has ended. The published end-of-support date was 2023-04-11 — 1207 days ago.
Scope: software releaseAs of 2026-08-01
Lifecycle timeline
- 2013-01-09 — Release date · General availability
- 2018-04-10 — End of active support · End of maintenance
- 2023-04-11 — End of support · End of standard support
Why this status?
“End of active support” (end-of-maintenance, 2018-04-10, confirmed) has passed and no later support phase is published.
Evidence
- Microsoft Exchange Server lifecycle Official · checked 2026-08-01
- endoflife.date product data independent-open · checked 2026-08-01
Keep going
- All MS Server Exchange Server lifecycle dates· 11 tracked releases
- MS Server Exchange Server security advisories· 10 tracked
- Free CVE email alerts for MS Server
Status derived deterministically from the published milestones. When a vendor does not publish a date, this page says so — it never guesses.