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Windows 7: Our Next Engineering Milestone


11 May 2009   #1

 
Our Next Engineering Milestone

Quote:
Back in January we released the Beta and updated you on our overall engineering process that will get us from Beta to the Release Candidate. Today, downloading of the Release Candidate started and we’re already seeing a lot of installations and a lot of excitement. On behalf of the team, I want to extend a thank you for all of the millions of people who have been running and testing the Beta who have helped to make the Release Candidate possible. The feedback we have received, through all the mechanisms we have blogged about, has been an incredibly valuable part of Engineering Windows 7. We continue to be humbled by the response to Windows 7. Thank you!

This post is about the path from RC to what we call RTM, release to manufacturing. RTM is not one point in time but a “process” as from RTM we enable the PC manufacturers to begin their processes of building Windows 7 images for new PCs, readying downloads for existing machines, and preparing the full supply chain to deliver Windows 7 to customers. Thus RTM is the final stage in our engineering of Windows 7, but the engineering continues from RTM until you can purchase Windows 7 and Windows 7 PCs in stores at General Availability, or GA.

The path to RTM starts with downloads of the RC. The RC is “done” and what we are doing is validating this against the breadth of the ecosystem and with partners. It means, from our perspective, we have run many tests many times and are working to understand the quality of the release in a breadth sense. We’re all familiar with this as we have done this same thing as we went from pre-Beta to Beta and from Beta to RC. The primary difference with the RC is that we will not be changing the functionality or features of the product at this point—that’s the sort of thing we’ll save for a future release. We’ve gotten tons of feedback on design and features and shown how we have digested and acted on this feedback throughout many posts on this blog. We know we did not do everything that was asked, and we have also seen that we’ve been asked to do things that are tricky to reconcile. We hoped through the dialog on this blog that we’ve shown our commitment to listening and balancing a wide variety of inputs, and how we have thought about the evolution of Windows.

What sort of feedback are we looking for in the RC? We are primarily focused on monitoring the behavior of the product through the telemetry, and of course making sure we did not introduce any regressions in any dimension from Beta quality. One of the things we have done since Beta has continued to beef up telemetry—we’ve put in additional monitoring points in many systems. We’re particularly interested in seeing what devices are installed, drivers that are required, and overall system performance. We have telemetry points that monitor the UI responsiveness of the Start Menu, Internet Explorer (recently posted), Boot, Shutdown, Resume, and across all subsystems. Of course in the final product, this telemetry is optional and opt-in, and it is always private.

There are a series of specific types of reports that we are keeping an eye out for that would constitute changes we would make to the code between now and RTM. Some of these might include:
  • Installation – We have significant telemetry in the setup process and also significant logging. Of course if you can’t set up at all that is something we are interested in and the same holds for upgrades from Windows Vista. For the “enrolled” beta programs we have a mechanism to enlist a connection to Microsoft for these issues and for the broad community the public support groups are monitored.
  • Security issues – Obviously any vulnerability is a potential for something we would fix. We will use the same criteria to address these issues as we would for any in-market product.
  • Crashes and Hangs – We are monitoring the “crash” reports for issues that arise that impact broad sets of people. These could be Windows code, drivers, or third party software. This information streams “real time” to Microsoft and we watch it very carefully.
  • Device installation and compatibility – When you download a driver from Windows Update or install a driver via a manufacturer’s setup program this is a data point we collect. We’ve had millions of unique PnP IDs through the Beta. We also receive the IDs for devices that failed to locate drivers. We are constantly updating this web service with pointers to information about the device (driver availability, instructions, etc.)
  • Software installation – Similar to devices, we are also monitoring the installation process of software and noting programs that do not complete successfully. Again we have the mechanism to help move that foreword and/or introduce compatibility work in the RTM milestone.
  • Servicing – We will continue to test the servicing of Windows 7 so everyone should expect updates to be made available via Windows Update. This includes new drivers and will also include patches to Windows 7. Test Updates will be labeled as such. We might also fix any significant issue with new code as well. All of this in an effort to validate the servicing pipeline and to maintain the quality of the RC.
  • New Hardware – Perhaps the most important category is making sure that we work with all the new hardware being made as we all use 7100. Our PC Manufacturing partners and Hardware partners are engineering new PCs and these are combinations new to the market and new to the OS. We’re working together to make sure Windows 7 has great support for these PCs and hardware.
All of the feedback will be evaluated and whether the issue is with Windows itself or with hardware, software, or OEM partner code we will work closely across the entire ecosystem to do what is necessary to deliver excellent fully integrated PCs. This goal is more important than anything else at this point. The depth of this work is new for the team in terms of spending engineer to engineer time across a broad range of partners to make sure everyone is ready together to deliver a great PC experience.

Overall, while many have said that the quality of the Beta was on par with past RCs (remember how some even suggested we release it as final!), we are working to do an even better job with Windows 7. We think we have the tools in place to do that.

While the RC itself was compiled about 2 weeks ago, it takes a bit of time to go through the mechanics of validating all the ISOs and images that are released. In the meantime we continue doing daily builds of the product. The daily builds are incorporating code changes to address the above types of issues that impact enough customers that on balance the code change is more valuable than the potential of a regression. Throughout this process, every change to the code is looked at by many people across development and test, and across many different teams. We have a lot of engineers changing a very little bit of code. We often say that shipping a major product means “slowing everything down”. Right now we’re being very deliberate with every change we make.

The RTM milestone is not a date, but a process. As that process concludes, we are done changing the code and are officially “servicing” Windows 7. That means any subsequent changes are delivered as fixes (KB articles) or banked for the first service pack. Obviously our ability to deliver fixes via Windows Update has substantially changed the way we RTM and so it is not unreasonable to expect updates soon after the product is complete as we have done for both Windows XP and Windows Vista.

Between now and the RTM milestone we will make changes to the code in response the above inputs. We are decelerating and will do so “gracefully” and not abruptly. We do not have a “deadline” we are aiming to meet and the quality (in all dimensions) of the product and a smooth finish are the most important criteria for Windows 7. In addition, we have a lot of work going on behind the scenes to build Windows 7 in nearly 100 languages around the world and to make sure all the supporting materials such as our Windows web site, SDK, resource kits, and so on are ready and available in a timely manner.

Once we have entered the RTM phase, our partners will begin to make their final images and manufacture PCs, and hardware and software vendors will ready their Windows 7 support and new products. We will also begin to manufacture retail boxes for shipment around the world. We will continue to work with our enterprise customers as well and based on the RTM process the volume license products will be available as well.

Delivering the highest quality Windows 7 is the most important criteria for us at this point—quality in every dimension. The RTM process is designed to be deliberate and maintain the overall engineering integrity of the system. Many are pushing us to release the product sooner rather than later, but our focus remains on a high quality release.

Ultimately our partners will determine when their PCs are available in market. If the feedback and telemetry on Windows 7 match our expectations then we will enter the final phases of the RTM process in about 3 months. If we are successful in that, then we tracking to our shared goal of having PCs with Windows 7 available this Holiday season.

--Steven and Jon

More...

My System SpecsSystem Spec
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12 May 2009   #2

 

My response to Steven....
@Steven and team,
First off, job well done! The beta process was fun and I, along with many others, provided feedback that was treated pretty fairly as the beta went along. It was apparent you guys were listening to us and responding through this blog. Were some requests deferred to never never land and some closed with easy answers like "by design"? Sure, but they were really just wish list stuff and I understand the reasons based on your explanations in this blog.
The testing I have done on the RC thus far is going great and it just feels "rock solid" to me. I have loaded it (clean) on three computers and have not found any major issues. Every single hardware device and application I normally run on a daily basis continue to work as they did on Vista or they work better. Performance overall is very good (both x86 and x64). Confidence is high. I am looking forward, with eager anticipation, for the RTM availability.
The folks on your team deserve a nice big bonus when this product gets out the door. I plan to purchase my copy at GA for sure, because if ever a program product deserved a high ROI, it's definitely Windows 7.
Walt Guimbellot (Windows enthusiast since Windows 3.11)
My System SpecsSystem Spec
13 May 2009   #3

Windows 7 x64
 
 

nice read and nice response, Walt. my sentiments the same.
My System SpecsSystem Spec
.


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