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When Is Patch Tuesday? Schedule, Meaning, and Why It Matters
Learn when Patch Tuesday happens, what Microsoft Patch Tuesday means, the next 12 Patch Tuesday dates, and why release day does not mean devices are patched.
Informational for IT admins, MSPs, and Windows users who want the Patch Tuesday schedule and what it means in practice
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Patch Tuesday is the second Tuesday of each month. That is the regular monthly date when Microsoft typically releases its main security updates.
In practice, "Patch Tuesday" means Microsoft's regular monthly security update release cycle, not proof that every device is patched the same day. Release date, approval, install timing, reboot completion, and verification are different steps, and out-of-band updates can still happen outside the normal monthly cadence.
Use Microsoft's Security Update Guide as the primary reference point for Microsoft security releases and monthly update publication timing. Microsoft Security Update Guide
What You'll Get
- Understand exactly when Patch Tuesday happens and what Microsoft Patch Tuesday means
- See the next 12 Patch Tuesday dates in one easy-to-refresh table
- Separate release day from actual endpoint patch completion and verification
When is Patch Tuesday?
Direct answer: Patch Tuesday happens on the second Tuesday of every month.
That is the regular monthly date when Microsoft typically releases its main security updates.
Next Patch Tuesday: Tuesday, April 14, 2026.
This is the short answer for searches like when is Patch Tuesday and when is Microsoft Patch Tuesday. The monthly rule is simple even though the exact date changes each month.
What is Microsoft Patch Tuesday?
Patch Tuesday is the plain-English name for Microsoft's regular monthly security update release cycle.
It usually refers to the day Microsoft publishes its main monthly security updates, commonly for supported Windows versions and related products on the same general cadence. Some people also call it Update Tuesday.
If someone asks what is Patch Tuesday, the practical answer is: it is a release event on a predictable monthly schedule, not a guarantee that every device is already patched.
For urgent releases outside that normal cadence, see out-of-band Windows updates.
Patch Tuesday schedule
The schedule follows the same rule every month: the second Tuesday. The exact dates below cover the next 12 Patch Tuesday releases from the current page update date, so the table can be refreshed easily each year.
| Month | Patch Tuesday date |
|---|---|
| April 2026 | April 14, 2026 |
| May 2026 | May 12, 2026 |
| June 2026 | June 9, 2026 |
| July 2026 | July 14, 2026 |
| August 2026 | August 11, 2026 |
| September 2026 | September 8, 2026 |
| October 2026 | October 13, 2026 |
| November 2026 | November 10, 2026 |
| December 2026 | December 8, 2026 |
| January 2027 | January 12, 2027 |
| February 2027 | February 9, 2027 |
| March 2027 | March 9, 2027 |
What gets released on Patch Tuesday?
At a high level, Microsoft commonly releases security updates and cumulative updates for supported Windows versions on Patch Tuesday.
Related Microsoft products can also receive updates on the same general cadence. The exact mix changes month to month, but the key point is that Patch Tuesday is usually the main monthly release point for Microsoft security fixes.
Why Patch Tuesday matters
Patch Tuesday matters because it gives people a predictable release point for important security work.
- Security vulnerabilities: monthly security fixes help reduce exposure to known issues.
- Compliance: many teams measure whether security updates were applied in a reasonable window after release.
- Risk reduction: faster patching after release usually means less time exposed to known vulnerabilities.
- Planning patch windows: IT teams and MSPs can prepare deployment, maintenance, and reboot schedules around a predictable date.
Does Patch Tuesday mean my devices are patched that day?
No. Patch Tuesday is a release date, not a guarantee that every endpoint installs updates that same day.
In practice, several things can delay the real install date:
- Staged deployment: teams often roll updates out in phases, not all at once.
- Approval delays: WSUS, RMM, or internal approval workflows may hold updates first.
- Pending reboot: a device may download or stage the update but still not be finished.
- Failed installs: some endpoints try to install and fail.
- Scan or reporting lag: the device or management tool may not reflect the newest state immediately.
Caution: do not treat Patch Tuesday itself as proof of successful deployment. "Released," "offered," "installed," and "verified" are different states, and confusing them leads to false confidence.
Why devices may not be fully patched after Patch Tuesday
Even after release day, some devices will still lag for practical reasons:
- Endpoint offline: the device was not online when the update became available.
- Windows Update errors: scan, download, or install failures block progress.
- RMM or WSUS policy timing: internal rules may delay when updates are offered or approved.
- Reboot not completed: the update is waiting for restart completion.
- Patch detection mismatch: the management view and the local endpoint view may not line up cleanly yet.
This is where release-day assumptions break down. You need endpoint evidence, not just the monthly calendar, to know what actually happened.
For the next operational step, see how to check for Windows updates, Windows Server security patches, and patch compliance reporting.
Are there updates outside Patch Tuesday?
Yes. Microsoft can release out-of-band updates outside the normal monthly Patch Tuesday schedule.
Those updates are usually tied to urgent issues that should not wait for the next regular monthly cycle.
Patch Tuesday vs being fully secure
Patch Tuesday is a release event. It is not proof that the whole environment is already secure.
| Term | What it means | Why it matters |
|---|---|---|
| Patch Tuesday | Microsoft's regular monthly security update release day | It tells you when updates are released, not whether every endpoint finished installing them. |
| Out-of-band update | An update released outside the normal Patch Tuesday cycle | It signals that urgent issues can appear outside the usual monthly plan. |
| Installed | The endpoint applied the update | Release and offering are not enough if the patch never installs successfully. |
| Pending reboot | The update is not fully complete until restart finishes | A device can look partly updated while still carrying unfinished risk. |
| Verified compliant | The endpoint's patch state was checked and confirmed | This is closer to operational truth than assuming release day equals completion. |
That difference between released, offered, installed, and verified is exactly why post-Patch-Tuesday reporting matters. PatchReporter helps teams verify actual endpoint patch status after release day, instead of assuming the calendar tells the whole story.
Common mistakes
- Assuming Patch Tuesday means every device installed updates the same day.
- Treating a release announcement as proof of successful deployment.
- Ignoring pending reboot state after updates are offered or installed.
- Forgetting that out-of-band updates can happen outside the monthly schedule.