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Is it not possible to run beta versions of these browsers to catch issues early?

• Silhouette 12y ago
  You can, but you still have to test against N different versions per year instead of 1, which is still an N-fold increase in testing overhead compared to annual releases. You can automate some aspects of that testing to reduce the burden. However, in the nature of web sites, some things will always need manual examination. No unit test is going to tell you that Chrome has a layout bug where your element that is styled to have a 100px width is being calculated at width 50px anyway and your entire home page doesn't render properly as a result, nor that resizing a responsive page in Firefox so it satisfies different media queries and then changing it back to the original size might result in a different layout (both real examples I've personally seen in recent months, BTW).