To get security fixes to you faster, starting now in Chrome 116, Chrome is shipping weekly Stable channel updates.
Chrome ships a new milestone release every four weeks. In between those major releases, we ship updates to address security and other high impact bugs. We currently schedule one of these Stable channel updates (or “Stable Refresh”) between each milestone. Starting in Chrome 116, Stable updates will be released every week between milestones.
This should not change how you use or update Chrome, nor is the frequency of milestone releases changing, but it does mean security fixes will get to you faster.
Reducing the Patch Gap
Chromium is the open source project which powers Chrome and many other browsers. Anyone can view the source code, submit changes for review, and see the changes made by anyone else, even security bug fixes. Users of our Canary (and Beta) channels receive those fixes and can sometimes give us early warning of unexpected stability, compatibility, or performance problems in advance of the fix reaching the Stable channel.
This openness has benefits in testing fixes and discovering bugs, but comes at a cost: bad actors could possibly take advantage of the visibility into these fixes and develop exploits to apply against browser users who haven’t yet received the fix. This exploitation of a known and patched security issue is referred to as n-day exploitation.
That’s why we believe it’s really important to ship security fixes as soon as possible, to minimize this “patch gap”.
When a Chrome security bug is fixed, the fix is landed in the public Chromium source code repository. The fix is then publicly accessible and discoverable. After the patch is landed, individuals across Chrome are working to test and verify the patch, and evaluate security bug fixes for backporting to affected release branches. Security fixes impacting Stable channel then await the next Stable channel update once they have been backported. The time between the patch being landed and shipped in a Stable channel update is the patch gap.
Chrome began releasing Stable channel updates every two weeks in 2020, with Chrome 77, as a way to help redu
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