Microsoft announces Silverlight 4 RC download, final version next month

Microsoft said on Monday that it is making a Release Candidate (RC) version of Silverlight 4 for download.

At a keynote for Microsoft's MIX 2010 keynote, Scott Guthrie, Vice president of Microsoft's Developer Division, outlined Silverlight 4. Silverlight 4 includes webcam and microphone support, multicast streaming, output protection and offline DRM. Guthrie announced that the final version of Silverlight 4 will allow you to watch streams on multimonitors and carry on working on other monitors.

During the MIX 2010 keynote, Microsoft welcomed Raji Arasu on stage, eBay's Vice President of Technology. eBay demonstrated a new eBay application based on Silverlight 4. Built in functionality includes webcam support and image cropping allowing users to easily and quickly list an eBay item.

The eBay Silverlight application will be available next month when Silverlight 4 launches. Silverlight 4 RC also includes support for Google Chrome browser, hardware accelaration for Deep Zoom, graphics and printing enhancements and networking enhancements.

Microsoft says the final version of Silverlight 4 will be available "next month".

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26 Comments

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I use Google Chrome and it worked fine with Silverlight before the version 4.0 release; I could watch Silverlight videos and such

What does this version add to Chrome that was not available before?

WAKASHIZuMa said,
I use Google Chrome and it worked fine with Silverlight before the version 4.0 release; I could watch Silverlight videos and such

What does this version add to Chrome that was not available before?

Support for version 4.0 Silverlight applications, go read the new features of Silverlight 4.0 page.

i thought it was the developer build. Can you give me the direct url to silverlight 4, i looked on that page several times, i just presumed i must have been that.

... There is other reason why is so big, its because there are some developer tools there as well. You can unpack .exe and there you will have Silverlight.7z, that is the client... Unpack that and you get Silverlight.msp, you can install only that if you are not developer, because that is client. And not like i didnt post download links with all silverlight4 stuff already

torrentthief said,
meh just give us 64bit silverlight already!
Or just don't use a x64 browser. If IE needs more than 4gb of RAM you're doing something wrong.

Ryoken said,
Or just don't use a x64 browser. If IE needs more than 4gb of RAM you're doing something wrong.
I get your point, but addressing large amounts of RAM isn't actually the only thing 64bit is good for.

yakumo said,
I get your point, but addressing large amounts of RAM isn't actually the only thing 64bit is good for.
Any other benefits in consumer level software is negated by the fact that the x64 version is always more buggy than the x86, less testing, and less time to let time do it's work on finding the bugs, whole, memory leaks, etc.

torrentthief said,
meh just give us 64bit silverlight already!

Why, to run 4 GB web applications? 64-bitness isn't necessarily faster, in some cases it can even be slower.

Ryoken said,
Any other benefits in consumer level software is negated by the fact that the x64 version is always more buggy than the x86, less testing, and less time to let time do it's work on finding the bugs, whole, memory leaks, etc.

not true, 64bit IE has been around for 5yrs ish and is no less stable than 32bit. Also chrome 64bit will be out soon and i'm sure that will be just as stable as 32bit chrome.

Most people think a 64bit silverlight would give approx a 10% speed improvement according to the people on doom9 forums, which is a nice speed boost, especially for older computers and laptops wanting to play HD video.

yakumo said,
I get your point, but addressing large amounts of RAM isn't actually the only thing 64bit is good for.
It's the only notable difference. +10% performance "bost" in a Silverlight app? Hah, it's waiting most of the time for user input... Sure, if we're talking 7-zip and compressing algorithms or highly parallelized math applications, but not on an interactive web app.

Edited by Northgrove, Mar 15 2010, 5:43pm :

Northgrove said,

Why, to run 4 GB web applications? 64-bitness isn't necessarily faster, in some cases it can even be slower.
prove it

torrentthief said,
meh just give us 64bit silverlight already!

The 32-bit version of IE comes pre-programmed as the default for a reason.

TCLN Ryster said,

The 32-bit version of IE comes pre-programmed as the default for a reason.

the reason being that there is no 64bit flash/silverlight for IE, thats the only reason the 32bit is the default version.

Microsoft really just needs to work out a way to run 32-bit plugins in a 64-bit browser. Pretty sure Safari does it on OS X, just through process separation. I wouldn't be surprised if that's a feature of IE9.

At the point when people start using 64-bit IE, the plugins will go 64-bit. People won't use 64-bit IE until plugins work in it. Something's gotta break, and it seems to be down to IE unfortunately. Unfair to the IE team? Yes. But something's gotta be done.

Ryoken said,
Any other benefits in consumer level software is negated by the fact that the x64 version is always more buggy than the x86, less testing, and less time to let time do it's work on finding the bugs, whole, memory leaks, etc.

Ya, not so much... In modern times, it is basically just a recompile.

The problems is the add-ins and the lack of 64bit versions from various 3rd parties, including MS Office which should change with 2010.