A List Apart

Menu Issue № 251

Not your father’s standards switch: a special issue on version targeting and forward compatibility.

Beyond DOCTYPE: Web Standards, Forward Compatibility, and IE8

by Aaron Gustafson · 253 Comments

For seven years, the DOCTYPE switch has stood designers and developers in good stead as a toggle between standards mode and quirks mode. But when IE7, with its greatly improved support for standards, "broke the web," it revealed the flaw in our toggle. The quest was on to find a more reliable ensurer of forward compatibility. Is version targeting the answer?

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