Using classic Outlook for Windows in business environments
Hello @Daniel Pilarski
At this time, there is no public confirmation from Microsoft that the built-in Jewish holiday calendar used by Classic Outlook for Windows will be updated beyond 2026.
As I have prefered, multiple users have reported that Jewish holidays stop appearing after 2026, and the behavior is consistent with reports that the built-in holiday data currently ends in 2026.
Because it's important fo you, as a workaround, you can try to subscribe to an online Jewish holiday calendar, such as Hebcal. This calendar is maintained separately from Outlook's built-in holiday list and continues to provide future holiday dates automatically.
For example, you can subscribe to the Hebcal Jewish holiday calendar:
- Open the Hebcal calendar page: https://www.hebcal.com/ical/
(This link is shared by community members for your convenience. It points to a third-party site that is not managed or verified by Microsoft. Please translate it into your language and review carefully before using it.)
- Choose the Jewish holiday calendar you want, copy the suitable link.
- Follow the Outlook subscription instructions provided by Hebcal.
- The calendar will appear under Other Calendars/My calender in Outlook and can be viewed alongside your primary calendar.
References:
Add holidays to your calendar in Outlook
If you can't do it in your Classic outlook, you can try to do it via the Outlook web version as below images:
Best Regards,
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