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Should you update to Microsoft Edge 151.0.4129.107?

From Microsoft Edge updates, in the HARD wiki · Updated
This article is about one Microsoft Edge release. For the latest version, see Microsoft Edge updates.

No: install Microsoft Edge 156.0.4314.58 instead. Microsoft Edge 151.0.4129.107 is a security update Microsoft released on 24 Aug 2026 for Mac and Windows. It fixes 7 security flaws, 0 rated critical and 0 important by Microsoft.[1] None of them is known to be used in attacks.

It has since been replaced by Microsoft Edge 152.0.4191.53, released 27 Aug 2026, which includes all of its fixes. If you’re on an older version, install that instead.

Should you update?

No: install Microsoft Edge 156.0.4314.58 instead. Microsoft Edge 156.0.4314.58 came out on 30 Oct 2026 and includes every fix in Microsoft Edge 151.0.4129.107, so there’s no reason to stop at this one. Software Update offers the newest version your device can run.

Is Microsoft Edge 151.0.4129.107 still safe?

Not any more. The 22 updates since, up to Microsoft Edge 156.0.4314.58, fix 1,495 security flaws that Microsoft Edge 151.0.4129.107 doesn’t, and each became public the day its fix shipped. Installing it is safe: get it only from Edge’s own About page (Edge updates itself; there’s nothing to download from a website), never from a link in an email, text or pop-up.

What it fixes

Microsoft lists 7 security flaws, 0 rated critical and 0 important by Microsoft.[1] None is rated critical or important.

How to update, and how long it takes

A minute or two. Edge restarts and reopens your tabs.

  1. Open Edge and click the three dots (…) at the top right.Choose Help and feedback, then About Microsoft Edge.
  2. Let it download the update.Edge checks as soon as that page opens. When it’s done, click Restart.

To check it worked: Three dots (…) → Help and feedback → About Microsoft Edge: the version is under the name, e.g. 157.0.4341.42. It should say 152.0.4191.53 or later.

151.0.4129.101 vs 151.0.4129.107

Microsoft Edge 151.0.4129.101, released 20 Aug 2026, fixed 14 security flaws. Microsoft Edge 151.0.4129.107 fixes 7 security flaws and includes the fixes before it, so going straight to 151.0.4129.107 gets you both.

References

  1. ^ Microsoft. “Microsoft Edge security release notes, August 24th, 2026”, 24 Aug 2026.