check before: 2024-07-15
Product:
Exchange, Microsoft 365 Apps, Microsoft 365 for the web, Microsoft Edge, Outlook, Windows
Platform:
Android, iOS, Mac, Online, Web, Windows Desktop, World tenant
Status:
Change type:
Admin impact, Retirement, Updated message, User impact
Links:
Details:
Summary:
Starting mid-July 2024, legacy Outlook clients will be retired, affecting users with outdated versions on iOS, Android, Mac, and Windows Mail and Calendar applications. From mid-August, outdated browsers will receive an error on Outlook web. Users must update to the latest versions for continued functionality and support.
Details:
Updated June 18, 2024: This post does not refer, nor does it impact classic Outlook for Windows. For the latest timing update for the new Outlook for Windows, please read New Outlook for Windows: A Guide to Product Availability. We apologize for any confusion and thank you for your feedback.
Starting in mid-July, for organizations that use vanity domains and their users are on the following version of clients they will experience functionality diminishing:
Outlook for iOS versions prior to 4.2411,
Outlook for Android versions before 4.2342,
Outlook for Mac versions older than 16.73
Windows Mail and Calendar applications
We encourage users to switch to the new Outlook for Windows, and update to the newest versions of Outlook on iOS, Android, and Mac. Our ongoing development efforts and advanced security measures will be focused on these updated platforms.
Starting in mid-August, for Outlook on the web and Outlook.com:
If users are using an old browser, they will receive an error page, and prompt to get the newer version of browser to continue using Outlook on the web.
Internet Explorer
Microsoft Edge Legacy
New Microsoft Edge<=79
Chrome<=79
Safari <=13.1
Mozilla Firefox< =78
Opera <=76
The light version of Outlook on the web will also be retired.
[When this will happen:]
For Outlook iOS, Android, Mac and Windows Mail and Calendar Application, we'll be gradually rolling this out to customers in mid-July 2024, and the roll out will be completed by late September 2024.
For Outlook on the web, we'll be gradually rolling this out to customers in mid-August 2024, and the roll out will be completed by late October 2024.
Change Category:
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Scope:
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Release Phase:
Created:
2024-06-15
updated:
2024-08-10
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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Direct effects for Operations**
- Impact on IT Operations
- Legacy Outlook clients will cease to function, leading to potential disruptions in email communication.
- Roles impacted: IT Support, System Administrators
- Increased support tickets and user inquiries as users encounter issues with outdated clients.
- Roles impacted: Help Desk Staff, IT Support
- Impact on IT Services
- The retirement of legacy clients may lead to a temporary increase in load on updated services as users transition.
- Roles impacted: IT Operations Managers, Service Delivery Managers
- Potential compatibility issues with other integrated services (e.g., calendar, task management) if users do not upgrade.
- Roles impacted: Application Administrators, Integration Specialists
- Impact on IT Users
- Users on outdated versions will lose access to email services, affecting productivity and communication.
- Roles impacted: All end-users, particularly those in roles reliant on email communication (e.g., Sales, Customer Support)
- Users may experience frustration and confusion due to the abrupt change, leading to decreased morale.
- Roles impacted: All end-users, particularly those less tech-savvy
- Impact on IT Administrators
- Administrators will need to manage the transition process, including communication and training for users on new versions.
- Roles impacted: IT Administrators, Change Managers
- Increased workload for administrators to ensure compliance and monitor the upgrade process across the organization.
- Roles impacted: IT Administrators, Compliance Officers
- Dependencies and Interdependencies
- The change may affect other applications relying on Outlook integration, such as CRM systems or project management tools.
- Roles impacted: Application Owners, Business Analysts
- Users relying on older browsers will face access issues, impacting their ability to use Outlook on the web.
- Roles impacted: All end-users, particularly those in remote or flexible work environments
References:
- Microsoft Support: [Outlook for Windows: The Future of Mail, Calendar, and People on Windows 11](https://support.microsoft.com/office/outlook-for-windows-the-future-of-mail-calendar-and-people-on-windows-11-715fc27c-e0f4-4652-9174-47faa751b199)
- Supported browsers for Outlook on the web: [Supported Browsers for Outlook on the Web](https://support.microsoft.com/office/supported-browsers-for-outlook-on-the-web-and-outlook-com-ca350265-6284-4682-9abd-85fc2bd37934)
Opportunities**
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Potentional Risks**
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** AI generated content. This information must be reviewed before use.
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change history
| Date | Property | old | new |
| 2024-06-19 | MC Messages | Starting in mid-July, for organizations that use vanity domains and their users are on the following version of clients they will experience functionality diminishing:
Outlook for iOS versions prior to 4.2411, Outlook for Android versions before 4.2342, Outlook for Mac versions older than 16.73 Windows Mail and Calendar applications We encourage users to switch to the new Outlook for Windows, and update to the newest versions of Outlook on iOS, Android, and Mac. Our ongoing development efforts and advanced security measures will be focused on these updated platforms. Starting in mid-August, for Outlook on the web and Outlook.com: If users are using an old browser, they will receive an error page, and prompt to get the newer version of browser to continue using Outlook on the web. Internet Explorer Microsoft Edge Legacy New Microsoft Edge<=79 Chrome<=79 Safari <=13.1 Mozilla Firefox< =78 Opera <=76 The light version of Outlook on the web will also be retired. [When this will happen:] For Outlook iOS, Android, Mac and Windows Mail and Calendar Application, we'll be gradually rolling this out to customers in mid-July 2024, and the roll out will be completed by late September 2024. For Outlook on the web, we’ll be gradually rolling this out to customers in mid-August 2024, and the roll out will be completed by late October 2024. | Updated June 18, 2024: This post does not refer, nor does it impact classic Outlook for Windows. For the latest timing update for the new Outlook for Windows, please read New Outlook for Windows: A Guide to Product Availability. We apologize for any confusion and thank you for your feedback.
Starting in mid-July, for organizations that use vanity domains and their users are on the following version of clients they will experience functionality diminishing: Outlook for iOS versions prior to 4.2411, Outlook for Android versions before 4.2342, Outlook for Mac versions older than 16.73 Windows Mail and Calendar applications We encourage users to switch to the new Outlook for Windows, and update to the newest versions of Outlook on iOS, Android, and Mac. Our ongoing development efforts and advanced security measures will be focused on these updated platforms. Starting in mid-August, for Outlook on the web and Outlook.com: If users are using an old browser, they will receive an error page, and prompt to get the newer version of browser to continue using Outlook on the web. Internet Explorer Microsoft Edge Legacy New Microsoft Edge<=79 Chrome<=79 Safari <=13.1 Mozilla Firefox< =78 Opera <=76 The light version of Outlook on the web will also be retired. [When this will happen:] For Outlook iOS, Android, Mac and Windows Mail and Calendar Application, we'll be gradually rolling this out to customers in mid-July 2024, and the roll out will be completed by late September 2024. For Outlook on the web, we’ll be gradually rolling this out to customers in mid-August 2024, and the roll out will be completed by late October 2024. |
| 2024-06-19 | MC Title | Legacy Outlook clients retirement plan | (Updated) Legacy Outlook clients retirement plan |
| 2024-06-19 | MC Last Updated | 06/15/2024 00:01:04 | 2024-06-18T19:09:06Z |
| 2024-06-19 | MC MessageTagNames | User impact, Admin impact, Retirement | Updated message, User impact, Admin impact, Retirement |
| 2024-06-19 | MC prepare | We recommend you upgrade your clients from legacy Outlook clients to the latest version of Outlook clients for the latest features and security protections.
Learn more Outlook on the web: Supported browsers for Outlook on the web and Outlook.com Windows Mail and Calendar Application: Outlook for Windows: The Future of Mail, Calendar, and People on Windows 11 - Microsoft Support Outlook iOS: Microsoft Outlook on the App Store (apple.com) Outlook Android: Microsoft Outlook - Apps on Google Play Outlook Mac: Microsoft Outlook on the Mac App Store (apple.com) https://apps.apple.com/us/app/microsoft-outlook/id951937596?referrer=kmas_id%253d35566d87-7eeb-480e-3263-0ac2c47b0e19%2526ocid%253dcmmrmrikbmn%2526rid%253deEmOeSXU https://apps.apple.com/us/app/microsoft-outlook/id985367838?mt=12 https://play.google.com/store/apps/details?id=com.microsoft.office.outlook&referrer=kmas_id%253dbe847d74-dbca-91a0-0d41-af7a2926861d%2526ocid%253dcmmo2y8kpf1%2526rid%253dn8ZF4eU6 https://support.microsoft.com/office/outlook-for-windows-the-future-of-mail-calendar-and-people-on-windows-11-715fc27c-e0f4-4652-9174-47faa751b199 https://support.microsoft.com/office/supported-browsers-for-outlook-on-the-web-and-outlook-com-ca350265-6284-4682-9abd-85fc2bd37934 | We recommend you upgrade your clients from legacy Outlook clients to the latest version of Outlook clients for the latest features and security protections.
Learn more Outlook on the web: Supported browsers for Outlook on the web and Outlook.com Windows Mail and Calendar Application: Outlook for Windows: The Future of Mail, Calendar, and People on Windows 11 - Microsoft Support Outlook iOS: Microsoft Outlook on the App Store (apple.com) Outlook Android: Microsoft Outlook - Apps on Google Play Outlook Mac: Microsoft Outlook on the Mac App Store (apple.com) https://aka.ms/newOutlookTimeline https://apps.apple.com/us/app/microsoft-outlook/id951937596?referrer=kmas_id%253d35566d87-7eeb-480e-3263-0ac2c47b0e19%2526ocid%253dcmmrmrikbmn%2526rid%253deEmOeSXU https://apps.apple.com/us/app/microsoft-outlook/id985367838?mt=12 https://play.google.com/store/apps/details?id=com.microsoft.office.outlook&referrer=kmas_id%253dbe847d74-dbca-91a0-0d41-af7a2926861d%2526ocid%253dcmmo2y8kpf1%2526rid%253dn8ZF4eU6 https://support.microsoft.com/office/outlook-for-windows-the-future-of-mail-calendar-and-people-on-windows-11-715fc27c-e0f4-4652-9174-47faa751b199 https://support.microsoft.com/office/supported-browsers-for-outlook-on-the-web-and-outlook-com-ca350265-6284-4682-9abd-85fc2bd37934 |
Last updated 3 months ago
