Edge 156.0.4314.56: install Thursday's Stable security update

If Microsoft Edge on your home PC or Mac still shows 156.0.4314.42 or 156.0.4314.50, you have a new Stable target. On Thursday, October 29, 2026, Microsoft shipped Edge 156.0.4314.56 on the Stable channel. The Stable release notes call it Update 2 for version 156 and say it fixes various bugs and performance issues. The security release notes say the same build incorporates the latest Chromium security updates.

This is not a jump from Edge 155. It is the second update to Edge 156, after the 156.0.4314.42 Stable launch on October 22 and 156.0.4314.50 (Update 1, bug and performance fixes) on October 26. Updating Chrome does not update Edge. Updating Edge does not update Chrome.

What Microsoft shipped on October 29

From Microsoft’s Stable notes for 156.0.4314.56:

• Fixes: various bugs and performance issues
• Security: Stable channel security updates are listed on the security notes page

From the security notes for the same day: Stable 156.0.4314.56 incorporates the latest Chromium security updates. Microsoft says CVEs will be added as soon as they are available. You do not need the CVE list to act. You need the new build running.

The same week Google shipped Chrome Stable 156.0.8078.79/.80 with 21 security fixes, including Critical MediaStream CVE-2026-76024 (our Chrome note, Chrome Releases). Edge’s security note does not re-list every Chromium CVE yet. Microsoft does not say which Chromium fixes .56 includes, so do not assume it matches Chrome’s list one for one. Install it, then confirm the running build with edge://version.

Why .42 and .50 are not enough anymore

If edge://version still shows 156.0.4314.42, or 156.0.4314.50, you did the right thing earlier this month. You still need 156.0.4314.56 (or a newer 156 Stable build if Microsoft already moved past it).

If you are still on 155.0.4283.x, you are a full version behind. Install 156.0.4314.56, not an older 155 update.

Same habit every time:

1. Update
2. Fully quit and relaunch
3. Prove it with edge://version

An update that has downloaded is not running until Edge restarts. The version page shows what is actually running.

How to update and verify on a home PC or Mac

1. Open Microsoft Edge on the computer you browse with.
2. Check for updates:
   • Windows / Linux: Menu (three dots) > Help and feedback > About Microsoft Edge.
   • Mac: Edge menu > About Microsoft Edge.
3. Stay on that page until the download finishes and Edge offers a restart, or until it already shows 156.0.4314.56 (or a newer 156.0.4314.x).
4. Restart when prompted. Do not click Later and leave old windows open for hours.
5. If the version still looks old, fully quit Edge (every window). On Windows, confirm no leftover msedge.exe helpers in Task Manager. On Mac, use Edge > Quit Microsoft Edge. Open Edge again.
6. Type edge://version in the address bar. You want 156.0.4314.56 or a newer 156 build.
7. Repeat on other machines you use, including a laptop that sleeps with Edge still open and any shared family PC.

If About Edge does not offer .56 yet, give it a day, then check again. Prefer Edge’s own About page or Microsoft’s download links over random “Edge offline installer” packs.

What stayed the same from .42

The everyday 156 features from the October 22 launch are still the ones you notice after you patch:

• Clearer site permissions when a site asks for camera, mic, or location
• Enhanced Autofill for more document types on desktop
• The key icon login detail panel, including personal notes on a saved login

Thursday’s .56 build is about Chromium security updates plus bug and performance fixes. Install first. Poke at the new autofill and login-note tools after edge://version looks right.

Android Edge is separate

Desktop Edge updates do not patch Edge on your phone. Microsoft’s security notes list Edge for Android builds on their own dates; the most recent Android entry is 155.0.4283.61 on October 19. Check Google Play on the phone, update, then open the app once so the new build actually launches. iOS Edge still updates through the App Store on its own schedule.

Do this / don’t do that

Do

• Force About Microsoft Edge, relaunch, and confirm edge://version shows 156.0.4314.56 or newer.
• Install the security update today rather than waiting for the weekend.
• Keep Chrome, Firefox, Safari, and Brave on their own update habits if you use more than one browser at home.

Don’t

• Do not stop at 156.0.4314.42 because you “already did Edge 156.”
• Do not assume a Windows Update reboot alone refreshed Edge if edge://version is still on .42.
• Do not wait for the CVE list to fill in before updating.
• Do not download random Edge installer packs from third-party sites.

Bottom line

Microsoft’s October 29, 2026 Stable Update 2 ships Edge 156.0.4314.56 with the latest Chromium security updates plus bug and performance fixes (Stable notes, security notes). This replaces .50 and the earlier 156.0.4314.42 launch build. On your own computer: open About Microsoft Edge, install, fully quit and relaunch, confirm edge://version. That is the whole job.

Image: Official Microsoft Edge page art showing the Edge logo in the browser (microsoft.com/edge).