Where can I find up-to-date browser compatibility guides?

Let me start by saying I really appreciate the work done at QuirksMode.org but in recent experience the content seems a bit dated.

• Some pages haven't been updated from anywhere between 6months and a year.
• Compatibility tables still only show chrome at version 5.0 (W3C DOM Compatibility) or 1.0 (Event compatibility tables)

In cases where content s开发者_如何学Goeems a bit dated I generally refer to Sitepoint's References, but their HTML and Javascript Reference pages are also a bit our of date.

What compatibility reference guides do you all use?

update

I'm aware of sites like CanIUse, which are invaluable reference new feature support like new JS API libraries and CSS3 support. However I'm more interested in things like supported attributes (bad example I admit) and browser events. The more vanilla stuff.

And please, noone mention w3schools (see w3fools why you should never use this site)

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http://caniuse.com is quite good and (provided you use the correct keywords) has good search functionality as well.

In addition to the above you might be interested in the ES5 compatibility tables that Kangax maintains at http://kangax.github.com/es5-compat-table/

update In the meantime there is also the ES6 compat table. Quite red for now (9/2014) admittedly, but getting more and more useful.

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I trust Quirksmode, have you any idea how many tests PPK runs? It's not that it's outdated (yet!) it's that CSS support (and Browser uptake) has reached a new level, trust me you will appreciate the experience if you have to support an older browser.

Not every FF or Opera user updates quickly anymore which is what could be relied on for a while! - so yes you're right to question the findings. personally I look for recent sites too but I don't "trust" them nearly as much as the older and even then I tend to test for myself.

There's no replacement for experience IMO often these guys can "guess" at what may be the problem based on their past experience even if the so called "bug" or unexpected display is new to them in that context.

I have a "bug" report detailed on PPK's site - yea it and me are old - but only last week I got asked about something (seemingly unrelated) which turned out to be the same thing and have the same solution, it's IE7 related so will be with us for a while yet. (I see caniuse thinks that's old eeek!) - I am completely in awe of these guys who have kept up these sites for so long, if you can reverse engineer the bugs you get to understand the browsers.. that will never fail you as long as the browsers are on the go - their render engines don't usually change all that much between versions!

but then again this is a new era of Browser wars so who knows what will happen :)

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Have a look at this big javascript compatibility table http://compatibility.shwups-cms.ch/de/home/ Its very big, but checks at the moment only for existenz of javascript properties.