The beta of IE9 is coming in September and the last platform preview adds in the final pieces of the rendering engine (along with fixes for over 100 bugs that have been reported so far).
That brings the Acid score for IE9 up to 95 – and that's where it's going to stop. That's because those last five points would involve implementing two features – SMIL and SVG fonts – that Microsoft has already said it won't (although, interestingly, there are suggestions that both features may move out of the SVG standard and that SVG Fonts might be dropped from the Acid test).
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Instead, the new preview adds a demo showing hardware-accelerated animated SVG in a dice-rolling game.
Unique fidelity level
Another new demo shows off the advantage of accelerating everything on the page using the GPU, rather than just pieces (the approach Firefox is taking). It's an impressive beatbox app, and when IE9 delivers the right number of beats per minute and Chrome doesn't, you can literally hear the difference.
Despite the new high Acid 3 score, Microsoft remains quietly critical of the test.
"Optimising for any one test causes unnatural outcomes. People overgeneralise around one single test that's not reflective of what web patterns developers are building," Gavin added.
"We focus on what developers are building, where things are in the standards process, and by building against those you get the results developers and websites need."
"This is a chance for the W3C and standards bodies to fill a gap where people want to have a test to point to. We have to get out of micro benchmarks and individual tests."