BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//KBY Technologies//Admin Deadlines//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:KBY admin deadlines (Office\, Microsoft 365)
X-WR-CALDESC:Microsoft and Apple retirements\, deprecations\, enforcement d
 ates and end-of-support dates for endpoint and identity admins. Each date 
 is quoted from the vendor's own page.
X-WR-TIMEZONE:UTC
REFRESH-INTERVAL;VALUE=DURATION:P1D
X-PUBLISHED-TTL:P1D
URL;VALUE=URI:https://www.kbytechnologies.com/deadlines
BEGIN:VEVENT
UID:exchange-online-ews-disablement-begins@kbytechnologies.com
DTSTAMP:20261109T000000Z
LAST-MODIFIED:20261109T000000Z
DTSTART;VALUE=DATE:20261001
DTEND;VALUE=DATE:20261002
SUMMARY:Exchange Web Services (EWS) phased disablement begins in Exchange O
 nline
DESCRIPTION:Microsoft · Retirement\n\nWho is affected: Any application\, s
 cript\, add-in or device that reads or writes Exchange Online mailboxes th
 rough EWS\, including third-party backup\, archiving\, CRM and room-bookin
 g tools.\n\nWhat to do:\n1. Run the EWS usage reports in the Microsoft 365
  admin center to find apps still calling EWS.\n2. Ask each vendor for its 
 Microsoft Graph release and date\; migrate in-house code to Graph.\n3. Rec
 ord apps with no Graph path yet and plan an alternative before April 2027.
 \n\nSources:\n- Exchange Online service description (Microsoft Learn): htt
 ps://learn.microsoft.com/en-us/office365/servicedescriptions/exchange-onli
 ne-service-description/exchange-online-service-description\n  "Phased disa
 blement begins October 1\, 2026\, with permanent retirement on April 1\, 2
 027."\n- Deprecation of Exchange Web Services in Exchange Online (Microsof
 t Learn): https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in
 -exchange-online/deprecation-of-ews-exchange-online\n  "October 2026: EWS 
 starts to be disabled globally for all organizations."\n\nChecked 2026-11-
 09. Dates move\; check the source before you act.\nhttps://www.kbytechnolo
 gies.com/deadlines/exchange-online-ews-disablement-begins
URL;VALUE=URI:https://www.kbytechnologies.com/deadlines/exchange-online-ews
 -disablement-begins
CATEGORIES:Microsoft,Retirement
TRANSP:TRANSPARENT
STATUS:CONFIRMED
END:VEVENT
BEGIN:VEVENT
UID:office-2021-and-ltsc-2021-end@kbytechnologies.com
DTSTAMP:20261109T000000Z
LAST-MODIFIED:20261109T000000Z
DTSTART;VALUE=DATE:20261013
DTEND;VALUE=DATE:20261014
SUMMARY:Office 2021 and Office LTSC 2021 reach end of support
DESCRIPTION:Microsoft · End of support\n\nWho is affected: Devices running
  perpetual Office 2021 or Office LTSC 2021 apps (Word\, Excel\, Outlook\, 
 PowerPoint\, Access\, Project\, Visio and related products).\n\nWhat to do
 :\n1. Inventory Office 2021 and LTSC 2021 installs with Intune or Configur
 ation Manager app inventory.\n2. Move users to Microsoft 365 Apps or a sup
 ported Office LTSC release.\n\nSources:\n- Ending Support in 2026 (Microso
 ft Lifecycle): https://learn.microsoft.com/en-us/lifecycle/end-of-support/
 end-of-support-2026\n  "Office 2021 | October 13\, 2026"\n- Ending Support
  in 2026 (Microsoft Lifecycle): https://learn.microsoft.com/en-us/lifecycl
 e/end-of-support/end-of-support-2026\n  "Office LTSC 2021 | October 13\, 2
 026"\n\nChecked 2026-11-09. Dates move\; check the source before you act.\
 nhttps://www.kbytechnologies.com/deadlines/office-2021-and-ltsc-2021-end
URL;VALUE=URI:https://www.kbytechnologies.com/deadlines/office-2021-and-lts
 c-2021-end
CATEGORIES:Microsoft,End of support
TRANSP:TRANSPARENT
STATUS:CONFIRMED
END:VEVENT
BEGIN:VEVENT
UID:exchange-online-ews-retired@kbytechnologies.com
DTSTAMP:20261109T000000Z
LAST-MODIFIED:20261109T000000Z
DTSTART;VALUE=DATE:20270401
DTEND;VALUE=DATE:20270402
SUMMARY:Exchange Web Services (EWS) fully disabled in Exchange Online
DESCRIPTION:Microsoft · Retirement\n\nWho is affected: Every remaining EWS
  client of Exchange Online. On-premises Exchange is not part of this retir
 ement.\n\nWhat to do:\n1. Confirm the EWS usage report shows no remaining 
 production callers.\n2. Check the parity-gap roadmap on the EWS deprecatio
 n page for features your apps still need.\n\nSources:\n- Exchange Online s
 ervice description (Microsoft Learn): https://learn.microsoft.com/en-us/of
 fice365/servicedescriptions/exchange-online-service-description/exchange-o
 nline-service-description\n  "Phased disablement begins October 1\, 2026\,
  with permanent retirement on April 1\, 2027."\n- Deprecation of Exchange 
 Web Services in Exchange Online (Microsoft Learn): https://learn.microsoft
 .com/en-us/exchange/clients-and-mobile-in-exchange-online/deprecation-of-e
 ws-exchange-online\n  "April 2027: EWS is fully disabled."\n\nChecked 2026
 -11-09. Dates move\; check the source before you act.\nhttps://www.kbytech
 nologies.com/deadlines/exchange-online-ews-retired
URL;VALUE=URI:https://www.kbytechnologies.com/deadlines/exchange-online-ews
 -retired
CATEGORIES:Microsoft,Retirement
TRANSP:TRANSPARENT
STATUS:CONFIRMED
END:VEVENT
BEGIN:VEVENT
UID:teams-displays-retirement@kbytechnologies.com
DTSTAMP:20261109T000000Z
LAST-MODIFIED:20261109T000000Z
DTSTART;VALUE=DATE:20270903
DTEND;VALUE=DATE:20270904
SUMMARY:Microsoft Teams Displays retire
DESCRIPTION:Microsoft · Retirement\n\nWho is affected: Organisations with 
 Microsoft Teams Display devices on desks or in shared spaces.\n\nWhat to d
 o:\n1. List Teams Display devices in the Teams admin center device invento
 ry.\n2. Budget and plan replacements before the retirement date.\n\nSource
 s:\n- Ending Support in 2027 (Microsoft Lifecycle): https://learn.microsof
 t.com/en-us/lifecycle/end-of-support/end-of-support-2027\n  "Microsoft Tea
 ms Displays | September 3\, 2027"\n\nChecked 2026-11-09. Dates move\; chec
 k the source before you act.\nhttps://www.kbytechnologies.com/deadlines/te
 ams-displays-retirement
URL;VALUE=URI:https://www.kbytechnologies.com/deadlines/teams-displays-reti
 rement
CATEGORIES:Microsoft,Retirement
TRANSP:TRANSPARENT
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR