• https://blogs.msdn.com/b/visualstudioalmrangers/archive/2015/08/06/new-elements-of-tfs-2015-that-influence-an-upgrade.aspx
• https://blogs.msdn.com/b/visualstudioalmrangers/archive/2015/08/07/short-lead-checklist.aspx
• https://blogs.msdn.com/b/visualstudioalmrangers/archive/2015/08/10/long-lead-preparations.aspx
• https://blogs.msdn.com/b/visualstudioalmrangers/archive/2015/08/10/long-lead-checklist.aspx
• https://blogs.msdn.com/b/visualstudioalmrangers/archive/2015/08/11/post-upgrade-checklist-draft.aspx
• https://msdn.microsoft.com/en-us/Library/vs/alm/TFS/upgrade/upgrade

Installing VS 2015 soon? Check out this post and KB:

• https://blogs.msdn.com/b/visualstudio/archive/2015/08/07/visual-studio-2015-faq.aspx
• https://support.microsoft.com/en-us/kb/3025135

Looking into the new build system in TFS 2015 - here are some documentation

• https://msdn.microsoft.com/en-us/Library/vs/alm/build/overview

Enjoy!

Who are the Visual Studio ALM Rangers: https://aka.ms/vsarunderstand

Check the great work they do here: https://aka.ms/vsarsolutions and here: https://blogs.msdn.com/b/willy-peter_schaub/archive/2012/06/05/toc-alm-rangers-msdn-magazine-and-other-publications.aspx 

https://vsalmdocs.azurewebsites.net/tfs/build

There are at least two options if you need configure more advanced setting for the AppPool on an Azure website:

1. You can define triggers and actions for Azure web sites: https://azure.microsoft.com/blog/2014/02/06/auto-healing-windows-azure-web-sites 
2. ConfigureRemote Admin: https://blogs.msdn.com/b/benjaminperkins/archive/2014/08/05/configure-remote-iis-administration-for-microsoft-azure-web-sites.aspx. Then you connect to it directly in IIS Management Console from Windows Server.

Check it out here: https://visualstudiogallery.msdn.microsoft.com/1177943e-cfb7-4822-a8a6-e56c7905292b

Introduction:
https://azure.microsoft.com/en-us/services/visual-studio-online/
https://www.visualstudio.com/en-us/products/what-is-visual-studio-online-vs.aspx

Pricing:
https://azure.microsoft.com/en-us/pricing/details/visual-studio-online/

Features Timeline:
https://www.visualstudio.com/news/release-archive-vso

SLA & Terms of Service:
https://www.microsoft.com/en-us/download/details.aspx?id=42290
https://www.visualstudio.com/en-us/support/terms-of-service-vs.aspx
https://blogs.msdn.com/b/bharry/archive/2013/10/14/how-do-you-measure-quality-of-a-service.aspx

Status & Support:
https://blogs.msdn.com/b/vsoservice/
https://www.visualstudio.com/support/support-overview-vs

Migrating:
https://www.visualstudio.com/en-us/get-started/migrate-team-projects-vs.aspx

Users and Azure AD:
https://www.visualstudio.com/get-started/manage-organization-access-for-your-account-vs

Integration & Service Hooks:
https://www.visualstudio.com/integrate/
https://www.visualstudio.com/en-us/integrate/reference/reference-vso-hooks-overview-vsi
https://www.visualstudio.com/en-us/integrate/explore/explore-vso-vsi.aspx
https://blogs.msdn.com/b/slange/archive/2014/08/26/send-email-to-a-team-room-with-vso-service-hooks-and-zapier.aspx
https://www.visualstudio.com/integrate/reference/reference-vso-overview-vsi
https://www.visualstudio.com/en-us/get-started/integrating-with-service-hooks-vs

Backup:
Visual Studio Online utilize SQL Azure, which provides High-Availability and Disaster-Recovery. This is described here https://msdn.microsoft.com/en-us/library/azure/jj650016.aspx

Test & Build – On Premise:
If you don’t want to or cant use the build & test features provided by the service you can connect from both on-premise build and test controllers: https://nakedalm.com/connect-a-test-controller-to-team-foundation-service/ and https://myalmblog.com/2014/04/configuring-on-premises-build-server-for-visual-studio-online/

Feel free to suggest more and I will add them :-)

While there you might want also want take a look at the free courses: https://www.microsoftvirtualacademy.com/Studies/SearchResult.aspx

Using ProcessStartInfo and ApplicationUnderTest.Launch(ProcessStartInfo startInfo) you can launch a process under another user, but this will not work for Coded UI Tests in IE because you cannot access the DOM inside IE. Instead you can use the approach described there: https://blogs.msdn.com/b/siddharthapandey/archive/2009/12/13/testing-webpages-that-uses-windows-authentication-for-different-credentials.aspx

As mentioned the login dialog is different depending on Windows version. There might also be other situation where you want know the OS and/or IE version.

You can detect OS the Windows version in C# like this using Environment.OSVersion:

   1:  string ver = "0.0.0.0";

   2:  ver = Environment.OSVersion.ToString();

   3:              

   4:  switch (ver)

   5:  {

   6:     default:

   7:       //Do clever stuff based on the version number

   8:       break;

   9:  }

  10:   

  11:  TestContext.WriteLine("OS Version Detected was: " + ver);

Test output:

The IE version can be found using the WebBrowser class:

   1:  string ver = "0.0.0.0";

   2:  using (WebBrowser wb = new WebBrowser())

   3:  {

   4:     ver = wb.Version.ToString();

   5:  }

   6:   

   7:  switch (ver)

   8:  {

   9:     default:

  10:      //Do clever stuff based on the version number

  11:      break;

  12:  }

  13:   

  14:  TestContext.WriteLine("IE Version Detected was: " + ver);

Test output: