Ends in 27 days
Office LTSC 2021
Support ends on 10 Nov 2026 (in 27 days). The newest release is 14334.20974, published 13 Oct 2026.
What to do
Plan the move now: after 10 Nov 2026 Office LTSC 2021 gets no more updates, including security fixes. Until then, stay on 14334.20974.
Move to Office LTSC 2024Latest 17932.21056 · supported until 9 Oct 202934 more months of support14334.20974Newest release · 1d ago
27
Days of support left · until 10 Nov 2026
1Release in the last 12 months
Is your version current?
Compared with the publisher's releases of this lineMicrosoft 365 Apps support timeline
From first preview through release to end of support, as the vendors publish them- Office 2019 (volume licensed) and Office LTSC 2021 end on 10 Nov 2026 (in 27 days).
- Microsoft 365 Apps Monthly Enterprise Channel ends on 12 Jan 2027 (in 3 months).
- Microsoft 365 Apps Semi-Annual Enterprise Channel ends on 13 Apr 2027 (in 6 months).
- The newest supported line is Office LTSC 2024, supported until 9 Oct 2029.
- In preview: Microsoft 365 Apps 19725.20674, published 13 Oct 2026.
Microsoft 365 Apps Semi-Annual Enterprise Channel (Preview)Preview19725.20674 · until 12 Jan 2027 (in 3 months)
Microsoft 365 Apps Semi-Annual Enterprise Channel20430.20178 · until 13 Apr 2027 (in 6 months)
Microsoft 365 Apps Monthly Enterprise Channel20430.20180 · until 12 Jan 2027 (in 3 months)
Office 2019 (volume licensed)10417.20228 · until 10 Nov 2026 (in 27 days)
Office LTSC 2021LTS14334.20974 · until 10 Nov 2026 (in 27 days)
Ticks are releases; the red ones fix CVEs. Dates come from each vendor's release and lifecycle data and move when the vendor changes them.
Releases of Office LTSC 2021
1 collected, newest first| Version | Published | Release | What the notes say |
|---|---|---|---|
| 14334.20974 | 13 Oct 2026 | Version 2108 (Build 14334.20974) | — |
Open known issues
All Microsoft 365 Apps issues- [INVESTIGATING] Error "No results were found" when using the Translate function in OfficeOffice known issue · Date not supplied
- [INVESTIGATING] Error "Something Went Wrong [[1001]" signing in to Microsoft 365 Desktop ApplicationsOffice known issue · Date not supplied
- [WORKAROUND] Automation add-ins for Excel are not loading after installing April 2021 security updateOffice known issue · Date not supplied
- [WORKAROUND] Excel doesn't fully support some special characters in the filename or folder pathOffice known issue · Date not supplied
- [WORKAROUND] Excel may crash when running multiple instances that use clipboard functionality programmaticallyOffice known issue · Date not supplied
What changed
First observed 14 Oct 2026No field changes in the recorded history.
Cite this recorded revision to keep the same title, summary, facts and links when the page changes.
A day selects the latest observation by the end of that UTC day; today's selection can change until midnight. History starts when this installation records it.
Keep track
- Add the end of support to your calendar: one event on 10 Nov 2026, with a reminder 30 days before.
- Microsoft 365 Apps RSS feed: new releases, known issues, retirements and roadmap changes.
- What I run: list the versions you run and see which fall behind or out of support.
- Everything about Microsoft 365 Apps: its timeline, notices, roadmap and other lines.