BEGIN:VCALENDAR VERSION:2.0 PRODID:-//IT Deadline Radar//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:IT Deadline Radar BEGIN:VEVENT UID:publisher-leaves-microsoft-365@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20261001 DTEND;VALUE=DATE:20261002 SUMMARY:Microsoft Publisher leaves Microsoft 365 DESCRIPTION:Microsoft says Microsoft 365 subscribers will not be able to op en or edit Publisher files in Publisher on or shortly after October 1\, 20 26\, as the removal update rolls out.\nSource: https://support.microsoft.c om/en-us/publisher/microsoft-publisher-will-no-longer-be-supported-after-o ctober-2026\nLast verified: 2026-10-15\nConfidence: high URL:https://support.microsoft.com/en-us/publisher/microsoft-publisher-will- no-longer-be-supported-after-october-2026 CATEGORIES:Microsoft 365 END:VEVENT BEGIN:VEVENT UID:exchange-online-ews-allow-list@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20261010 DTEND;VALUE=DATE:20261011 SUMMARY:Exchange Online requires an EWS app allow list DESCRIPTION:For affected Worldwide tenants with EWS enabled\, EWSEnabled se t to true is no longer enough. Applications that are not on EWSAllowedAppI Ds may lose Exchange Web Services access.\nSource: https://mc.merill.net/m essage/MC1485116\nLast verified: 2026-10-15\nConfidence: high URL:https://mc.merill.net/message/MC1485116 CATEGORIES:Exchange Online END:VEVENT BEGIN:VEVENT UID:intune-legacy-apple-update-ui@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20261001 DTEND;VALUE=DATE:20261002 SUMMARY:Intune removes legacy Apple MDM software-update UI DESCRIPTION:Starting with Intune’s October 2026 (2610) service release\, th e legacy Apple MDM software-update policies and related reports are remove d from the Intune admin center. Devices that still depend on those MDM upd ate commands can fail to update.\nThe vendor published a month\, not a cal endar day. The event uses the first of that month.\nSource: https://techco mmunity.microsoft.com/blog/intunecustomersuccess/microsoft-intune-and-appl e-os-27-new-settings-support-and-platform-changes/4559764\nLast verified: 2026-10-15\nConfidence: medium URL:https://techcommunity.microsoft.com/blog/intunecustomersuccess/microsof t-intune-and-apple-os-27-new-settings-support-and-platform-changes/4559764 CATEGORIES:Intune END:VEVENT BEGIN:VEVENT UID:entra-memberof-preview-ends@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20261103 DTEND;VALUE=DATE:20261104 SUMMARY:Entra memberOf rules stop updating DESCRIPTION:Dynamic groups\, dynamic administrative units\, and entitlement -management auto-assignment policies that use the memberOf operator stop u pdating and stay in their last known state. Access\, licensing\, and Condi tional Access that depend on those memberships can go stale.\nSource: http s://learn.microsoft.com/en-us/entra/identity/users/groups-dynamic-rule-mem ber-of\nLast verified: 2026-10-15\nConfidence: high URL:https://learn.microsoft.com/en-us/entra/identity/users/groups-dynamic-r ule-member-of CATEGORIES:Entra END:VEVENT BEGIN:VEVENT UID:google-legacy-scep-deprecation@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20261130 DTEND;VALUE=DATE:20261201 SUMMARY:Google turns off legacy SCEP for ChromeOS DESCRIPTION:Legacy SCEP profiles stop issuing new client certificates to Ch romeOS devices. Version pinning does not keep the mandatory server-side co mponents running. Wi-Fi or other sign-in that needs a newly issued certifi cate fails for devices that have not moved to the Certificate Provisioning API.\nSource: https://support.google.com/chrome/a/answer/18337728?hl=en\n Last verified: 2026-10-15\nConfidence: high URL:https://support.google.com/chrome/a/answer/18337728?hl=en CATEGORIES:Google Workspace END:VEVENT BEGIN:VEVENT UID:copilot-business-ubb-default-on@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20261201 DTEND;VALUE=DATE:20261202 SUMMARY:New CSP Copilot Business licenses default to usage-based billing DESCRIPTION:New Microsoft 365 Copilot Business purchases through CSP\, incl uding standalone offers and bundles\, enable usage-based billing by defaul t. Pay-as-you-go is the default billing configuration\, with a default spe nding limit of 4\,000 Copilot Credits per user per month unless an admin c hanges it.\nSource: https://learn.microsoft.com/en-us/partner-center/annou ncements/2026-october\nLast verified: 2026-10-15\nConfidence: high URL:https://learn.microsoft.com/en-us/partner-center/announcements/2026-oct ober CATEGORIES:Microsoft 365 END:VEVENT BEGIN:VEVENT UID:windows-server-2016-end-of-updates@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20270112 DTEND;VALUE=DATE:20270113 SUMMARY:Windows Server 2016 end of updates DESCRIPTION:Windows Server 2016 reaches end of updates. After that\, the st andard lifecycle no longer provides security updates\, non-security update s\, or assisted support for the release.\nSource: https://learn.microsoft. com/en-us/windows/release-health/status-windows-10-1607-and-windows-server -2016\nLast verified: 2026-10-15\nConfidence: high URL:https://learn.microsoft.com/en-us/windows/release-health/status-windows -10-1607-and-windows-server-2016 CATEGORIES:Windows END:VEVENT BEGIN:VEVENT UID:lets-encrypt-64-day-certificates@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20270210 DTEND;VALUE=DATE:20270211 SUMMARY:Let’s Encrypt default certificates become 64 days DESCRIPTION:Certificates issued or renewed on the default classic profile o n or after February 10\, 2027 are valid for 64 days instead of 90. A renew al job hard-coded to 60\, 80\, or 83 days before expiry can miss the windo w. Authorization reuse drops from 30 days to 10 days.\nSource: https://let sencrypt.org/2026/10/07/64-day-certs\nLast verified: 2026-10-15\nConfidenc e: high URL:https://letsencrypt.org/2026/10/07/64-day-certs CATEGORIES:Certificates END:VEVENT BEGIN:VEVENT UID:public-tls-100-day-maximum@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20270315 DTEND;VALUE=DATE:20270316 SUMMARY:Public TLS certificates cap at 100 days DESCRIPTION:Publicly trusted TLS subscriber certificates issued on or after March 15\, 2027 cannot be valid longer than 100 days. Domain and IP addre ss validation reuse is also capped at 100 days. Certificates already issue d keep the lifetime they were given.\nSource: https://cabforum.org/working -groups/server/baseline-requirements/documents/CA-Browser-Forum-TLS-BR-2.2 .7.pdf\nLast verified: 2026-10-15\nConfidence: high URL:https://cabforum.org/working-groups/server/baseline-requirements/docume nts/CA-Browser-Forum-TLS-BR-2.2.7.pdf CATEGORIES:Certificates END:VEVENT BEGIN:VEVENT UID:exchange-online-ews-fully-disabled@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20270401 DTEND;VALUE=DATE:20270402 SUMMARY:Exchange Online EWS fully disabled DESCRIPTION:Microsoft Learn says EWS is fully disabled in April 2027. Appli cations that still depend on Exchange Web Services in Exchange Online lose that API\, including ones that were kept alive on an allow list until the n.\nThe vendor published a month\, not a calendar day. The event uses the first of that month.\nSource: https://learn.microsoft.com/en-us/exchange/c lients-and-mobile-in-exchange-online/deprecation-of-ews-exchange-online\nL ast verified: 2026-10-15\nConfidence: high URL:https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchan ge-online/deprecation-of-ews-exchange-online CATEGORIES:Exchange Online END:VEVENT BEGIN:VEVENT UID:lets-encrypt-45-day-certificates@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20280216 DTEND;VALUE=DATE:20280217 SUMMARY:Let’s Encrypt classic profile drops to 45 days DESCRIPTION:The classic ACME profile issues 45-day certificates\, and the a uthorization reuse period drops to 7 hours. Clients that were only adjuste d for the 64-day lifetime need another renewal-window change.\nSource: htt ps://letsencrypt.org/2025/12/02/from-90-to-45\nLast verified: 2026-10-15\n Confidence: high URL:https://letsencrypt.org/2025/12/02/from-90-to-45 CATEGORIES:Certificates END:VEVENT BEGIN:VEVENT UID:public-tls-47-day-maximum@it-deadline-radar DTSTAMP:20261016T004123Z DTSTART;VALUE=DATE:20290315 DTEND;VALUE=DATE:20290316 SUMMARY:Public TLS certificates cap at 47 days DESCRIPTION:Publicly trusted TLS subscriber certificates issued on or after March 15\, 2029 cannot be valid longer than 47 days. Domain and IP valida tion reuse is capped at 10 days on the same date.\nSource: https://cabforu m.org/working-groups/server/baseline-requirements/documents/CA-Browser-For um-TLS-BR-2.2.7.pdf\nLast verified: 2026-10-15\nConfidence: high URL:https://cabforum.org/working-groups/server/baseline-requirements/docume nts/CA-Browser-Forum-TLS-BR-2.2.7.pdf CATEGORIES:Certificates END:VEVENT END:VCALENDAR