Windows 10 Branches are Dead, Long Live Windows 10 Channels

Overview of Windows as a service

The Windows 10 operating system introduces a new way to build, deploy, and service Windows: Windows as a service. Microsoft has reimagined each part of the process, to simplify the lives of IT pros and maintain a consistent Windows 10 experience for its customers. These improvements focus on maximizing customer involvement in Windows development, simplifying the deployment and servicing of Windows client computers, and leveling out the resources needed to deploy and maintain Windows over time.

Click the following Microsoft Mechanics video for an overview of the release model, particularly the Semi-Annual Channel.

YouTube video of Michael Niehouse explaining how the Semi-Annual Channel works

Building

Prior to Windows 10, Microsoft released new versions of Windows every few years. This traditional deployment schedule imposed a training burden on users because the feature revisions were often significant. That schedule also meant waiting long periods without new features — a scenario that doesn’t work in today’s rapidly changing world, a world in which new security, management, and deployment capabilities are necessary to address challenges. Windows as a service will deliver smaller feature updates two times per year, around March and September, to help address these issues.

In the past, when Microsoft developed new versions of Windows, it typically released technical previews near the end of the process, when Windows was nearly ready to ship. With Windows 10, new features will be delivered to the Windows Insider community as soon as possible — during the development cycle, through a process called flighting — so that organizations can see exactly what Microsoft is developing and start their testing as soon as possible.

Microsoft also depends on receiving feedback from organizations throughout the development process so that it can make adjustments as quickly as possible rather than waiting until after release. For more information about the Windows Insider Program and how to sign up, see the section Windows Insider.

Of course Microsoft also performs extensive internal testing, with engineering teams installing new builds daily, and larger groups of employees installing builds frequently, all before those builds are ever released to the Windows Insider Program.

Deploying

Deploying Windows 10 is simpler than with previous versions of Windows. When migrating from earlier versions of Windows, an easy in-place upgrade process can be used to automatically preserve all apps, settings, and data. And once running Windows 10, deployment of Windows 10 feature updates will be equally simple.

One of the biggest challenges for organizations when it comes to deploying a new version of Windows is compatibility testing. Whereas compatibility was previously a concern for organizations upgrading to a new version of Windows, Windows 10 is compatible with most hardware and software capable of running on Windows 7 or later. Because of this high level of compatibility, the app compatibility testing process can be greatly simplified.

Application compatibility

Application compatibility testing has historically been a burden when approaching a Windows deployment or upgrade. With Windows 10, application compatibility from the perspective of desktop applications, websites, and apps built on the Universal Windows Platform (UWP) has improved tremendously. Microsoft understands the challenges organizations experienced when they migrated from the Windows XP operating system to Windows 7 and has been working to make Windows 10 upgrades a much better experience.

Most Windows 7–compatible desktop applications will be compatible with Windows 10 straight out of the box. Windows 10 achieved such high compatibility because the changes in the existing Win32 application programming interfaces were minimal. Combined with valuable feedback via the Windows Insider Program and diagnostic data, this level of compatibility can be maintained through each feature update. As for websites, Windows 10 includes Internet Explorer 11 and its backward-compatibility modes for legacy websites. Finally, UWP apps follow a compatibility story similar to desktop applications, so most of them will be compatible with Windows 10.

For the most important business-critical applications, organizations should still perform testing on a regular basis to validate compatibility with new builds. For remaining applications, consider validating them as part of a pilot deployment process to reduce the time spent on compatibility testing. If it’s unclear whether an application is compatible with Windows 10, IT pros can either consult with the ISV or check the supported software directory at http://www.readyforwindows.com.

Device compatibility

Device compatibility in Windows 10 is also very strong; new hardware is not needed for Windows 10 as any device capable of running Windows 7 or later can run Windows 10. In fact, the minimum hardware requirements to run Windows 10 are the same as those required for Windows 7. Most hardware drivers that functioned in Windows 8.1, Windows 8, or Windows 7 will continue to function in Windows 10.

Servicing

Traditional Windows servicing has included several release types: major revisions (e.g., the Windows 8.1, Windows 8, and Windows 7 operating systems), service packs, and monthly updates. With Windows 10, there are two release types: feature updates that add new functionality twice per year, and quality updates that provide security and reliability fixes at least once a month.

With Windows 10, organizations will need to change the way they approach deploying updates. Servicing channels are the first way to separate users into deployment groups for feature and quality updates. With the introduction of servicing channels comes the concept of a deployment ring, which is simply a way to categorize the combination of a deployment group and a servicing channel to group devices for successive waves of deployment. For more information about developing a deployment strategy that leverages servicing channels and deployment rings, see Plan servicing strategy for Windows 10 updates.

For information about each servicing tool available for Windows 10, see Servicing tools.

To align with this new update delivery model, Windows 10 has three servicing channels, each of which provides different levels of flexibility over when these updates are delivered to client computers. For information about the servicing channels available in Windows 10, see Servicing channels.

Naming changes

As part of the alignment with Windows 10 and Office 365 ProPlus, we are adopting common terminology to make it as easy as possible to understand the servicing process. Going forward, these are the new terms we will be using:

  • Semi-Annual Channel – We will be referreing to Current Branch (CB) as “Semi-Annual Channel (Targeted)”, while Current Branch for Business (CBB) will simply be referred to as “Semi-Annual Channel”.
  • Long-Term Servicing Channel – The Long-Term Servicing Branch (LTSB) will be referred to as Long-Term Servicing Channel (LTSC).

Note

For additional information, see the section about Servicing Channels.

You can also read this blog post, with details on this change.

Feature updates

With Windows 10, Microsoft will package new features into feature updates that can be deployed using existing management tools. Because feature updates are delivered more frequently than with previous Windows releases — twice per year, around March and September, rather than every 3–5 years — changes will be in bite-sized chunks rather than all at once and end user readiness time much shorter.

Tip

The feature update cadence has been aligned with Office 365 ProPlus updates. Starting with this falls’ update, both Windows and Office will deliver their major updates semi-annually, around March and September. See upcoming changes to Office 365 ProPlus update management for more information about changes to Office update management.

Quality updates

Monthly updates in previous Windows versions were often overwhelming because of the sheer number of updates available each month. Many organizations selectively chose which updates they wanted to install and which they didn’t, and this created countless scenarios in which organizations deployed essential security updates but picked only a subset of non-security fixes.

In Windows 10, rather than receiving several updates each month and trying to figure out which the organization needs, which ultimately causes platform fragmentation, administrators will see one cumulative monthly update that supersedes the previous month’s update, containing both security and non-security fixes. This approach makes patching simpler and ensures that customers’ devices are more closely aligned with the testing done at Microsoft, reducing unexpected issues resulting from patching. The left side of Figure 1 provides an example of Windows 7 devices in an enterprise and what their current patch level might look like. On the right is what Microsoft’s test environment PCs contain. This drastic difference is the basis for many compatibility issues and system anomalies related to Windows updates.

Figure 1

Comparison of patch environment in enterprise compared to test

Servicing channels

To align with the new method of delivering feature updates and quality updates in Windows 10, Microsoft introduced the concept of servicing channels to allow customers to designate how frequently their individual devices are updated. For example, an organization may have test devices that the IT department can update with new features as soon as possible, and then specialized devices that require a longer feature update cycle to ensure continuity.

With that in mind, Windows 10 offers 3 servicing channels. The Windows Insider Program provides organizations with the opportunity to test and provide feedback on features that will be shipped in the next feature update. The Semi-Annual Channel provides new functionality with twice-per-year feature update releases. Organizations can choose when to deploy updates from the Semi-Annual Channel. The Long Term Servicing Channel, which is designed to be used only for specialized devices (which typically don’t run Office) such as those that control medical equipment or ATM machines, receives new feature releases every two to three years. For details about the versions in each servicing channel, see Windows 10 release information.

The concept of servicing channels is new, but organizations can use the same management tools they used to manage updates and upgrades in previous versions of Windows. For more information about the servicing tool options for Windows 10 and their capabilities, see Servicing tools.

Note

Servicing channels are not the only way to separate groups of devices when consuming updates. Each channel can contain subsets of devices, which staggers servicing even further. For information about the servicing strategy and ongoing deployment process for Windows 10, including the role of servicing channels, see Plan servicing strategy for Windows 10 updates.

Semi-Annual Channel

In the Semi-Annual servicing channel, feature updates are available as soon as Microsoft releases them. Windows 10, version 1511, had few servicing tool options to delay feature updates, limiting the use of the Semi-Annual servicing channel. Windows 10, version 1607 and onward, includes more servicing tools that can delay feature updates for up to 365 days. This servicing modal is ideal for pilot deployments and testing of Windows 10 feature updates and for users such as developers who need to work with the latest features immediately. Once the latest release went through pilot deployment and testing, you choose the timing at which it goes into broad deployment.

When Microsoft officially releases a feature update for Windows 10, it is made available to any PC not configured to defer feature updates so that those devices can immediately install it. Organizations that use Windows Server Update Services (WSUS), Microsoft System Center Configuration Manager, or Windows Update for Business, however, can defer feature updates to selective devices by withholding their approval and deployment. In this scenario, the content available for the Semi-Annual Channel will be available but not necessarily immediately mandatory, depending on the policy of the management system. For more details about Windows 10 servicing tools, see Servicing tools.

Organizations are expected to initiate targeted deployment on Semi-Annual Channel releases, while after about 4 months, we will announce broad deployment readiness, indicating that Microsoft, independent software vendors (ISVs), partners, and customers believe that the release is ready for broad deployment. Each feature update release will be supported and updated for 18 months from the time of its release

Note1

Organizations can electively delay feature updates into as many phases as they wish by using one of the servicing tools mentioned in the section Servicing tools.

Long-term Servicing Channel

Specialized systems—such as PCs that control medical equipment, point-of-sale systems, and ATMs—often require a longer servicing option because of their purpose. These devices typically perform a single important task and don’t need feature updates as frequently as other devices in the organization. It’s more important that these devices be kept as stable and secure as possible than up to date with user interface changes. The LTSC servicing model prevents Windows 10 Enterprise LTSB devices from receiving the usual feature updates and provides only quality updates to ensure that device security stays up to date. With this in mind, quality updates are still immediately available to Windows 10 Enterprise LTSB clients, but customers can choose to defer them by using one of the servicing tools mentioned in the section Servicing tools.

Note

Windows 10 Enterprise LTSB is a separate Long Term Servicing Channel version.

Long-term Servicing channel is not intended for deployment on most or all the PCs in an organization; it should be used only for special-purpose devices. As a general guideline, a PC with Microsoft Office installed is a general-purpose device, typically used by an information worker, and therefore it is better suited for the Semi-Annual servicing channel.

Microsoft never publishes feature updates through Windows Update on devices that run Windows 10 Enterprise LTSB. Instead, it typically offers new LTSC releases every 2–3 years, and organizations can choose to install them as in-place upgrades or even skip releases over a 10-year life cycle.

Note

Windows 10 LTSB will support the currently released silicon at the time of release of the LTSB. As future silicon generations are released, support will be created through future Windows 10 LTSB releases that customers can deploy for those systems. For more information, see Supporting the latest processor and chipsets on Windows in Lifecycle support policy FAQ – Windows Products.

The Long-term Servicing Channel is available only in the Windows 10 Enterprise LTSB edition. This build of Windows doesn’t contain many in-box applications, such as Microsoft Edge, Microsoft Store, Cortana (limited search capabilities remain available), Microsoft Mail, Calendar, OneNote, Weather, News, Sports, Money, Photos, Camera, Music, and Clock. Therefore, it’s important to remember that Microsoft has positioned the LTSC model primarily for specialized devices.

Note

If an organization has devices currently running Windows 10 Enterprise LTSB that it would like to change to the Semi-Annual Channel, it can make the change without losing user data. Because LTSB is its own SKU, however, an upgrade is required from Windows 10 Enterprise LTSB to Windows 10 Enterprise, which supports the Semi-Annual Channel.

Windows Insider

For many IT pros, gaining visibility into feature updates early—before they’re available to the Semi-Annual Channel — can be both intriguing and valuable for future end user communications as well as provide the means to test for any issues on the next Semi-Annual Channel release. With Windows 10, feature flighting enables Windows Insiders to consume and deploy preproduction code to their test machines, gaining early visibility into the next build. Testing the early builds of Windows 10 helps both Microsoft and its customers because they have the opportunity to discover possible issues before the update is ever publicly available and can report it to Microsoft.

Microsoft recommends that all organizations have at least a few PCs enrolled in the Windows Insider Program and provide feedback on any issues they encounter. For information about the Windows Insider Program for Business, go to Windows Insider Program for Business.1

Note

Microsoft recommends that all organizations have at least a few PCs enrolled in the Windows Insider Program, to include the Windows Insider Program in their deployment plans and to provide feedback on any issues they encounter to Microsoft via our Feedback Hub app.

The Windows Insider Program isn’t intended to replace Semi-Annual Channel deployments in an organization. Rather, it provides IT pros and other interested parties with pre-release Windows builds that they can test and ultimately provide feedback on to Microsoft.

Servicing tools

There are many tools with which IT pros can service Windows as a service. Each option has its pros and cons, ranging from capabilities and control to simplicity and low administrative requirements. The following are examples of the servicing tools available to manage Windows as a service updates:

  • Windows Update (stand-alone) provides limited control over feature updates, with IT pros manually configuring the device to be in the Semi-Annual Channel. Organizations can target which devices defer updates by selecting the Defer upgrades check box in Start\Settings\Update & Security\Advanced Options on a Windows 10 client.
  • Windows Update for Business is the second option for servicing Windows as a service. This servicing tool includes control over update deferment and provides centralized management using Group Policy. Windows Update for Business can be used to defer updates by up to 365 days, depending on the version. These deployment options are available to clients in the Semi-Annual Channel. In addition to being able to use Group Policy to manage Windows Update for Business, either option can be configured without requiring any on-premises infrastructure by using Intune.
  • Windows Server Update Services (WSUS) provides extensive control over Windows 10 updates and is natively available in the Windows Server operating system. In addition to the ability to defer updates, organizations can add an approval layer for updates and choose to deploy them to specific computers or groups of computers whenever ready.
  • System Center Configuration Manager provides the greatest control over servicing Windows as a service. IT pros can defer updates, approve them, and have multiple options for targeting deployments and managing bandwidth usage and deployment times.

With all these options, which an organization chooses depends on the resources, staff, and expertise its IT organization already has. For example, if IT already uses System Center Configuration Manager to manage Windows updates, it can continue to use it. Similarly, if IT is using WSUS, it can continue to use that. For a consolidated look at the benefits of each tool, see Table 1.

Table 1

Servicing tool Can updates be deferred? Ability to approve updates Peer-to-peer option Additional features
Windows Update Yes (manual) No Delivery Optimization None
Windows Update for Business Yes No Delivery Optimization Other Group Policy objects
WSUS Yes Yes BranchCache or Delivery Optimization Upstream/downstream server scalability
Configuration Manager Yes Yes BranchCache, Client Peer Cache Distribution points, multiple deployment options

Note

Due to naming changes, older terms like CB,CBB and LTSB may still be displayed in some of our products.

 

Confused between Intune for Education and Full Intune? This post explains the differences

For many schools, regardless of size, device deployment poses significant challenges, as it is during deployment that group policies are set, data is secured, devices are readied, and essential applications are enabled. Historically, this task has taken a disproportionate amount of time. As a result, schools interested in using educational technology to improve student learning outcomes have turned to ways to manage those devices with less time and effort, so that more IT time can be spent in more strategic, directly supportive functions. Today, as the digital revolution rolls on, cloud-based deployment solutions are available to simplify this task. Read more about the challenges facing EDU IT and how cloud-based solutions like Intune for Education can help address them in the whitepaper The State of Modern Device Deployment in Education.
With the new and simple Intune for Education step-by-step Express Configuration wizard, Education IT selects a group for devices or users, also the specific apps that we wanted to be available, and key configuration settings from those most often used in schools. IT can use a USB drive to set up Windows 10 for each device and the enroll the device in Intune management via Azure AD. That is all they need to do and they can do it in less than an hour. Learn more about using the Intune for Education with the article What is Intune for Education?
If it’s a mixed device environment and/or more enterprise-grade policies are needed, they can move seamlessly to the Intune console and then back to Intune for Education for simplified Windows 10 device management. Ongoing management is also painless with a centralized console for updates and monitoring. Learn more about using full Intune with the Introduction to Intune article.
You can compare the different use cases with the article How is Intune for Education different from the full device management experience in Intune? Note: schools that are licensed for Intune for Education will also have access to the full Intune console.
With Azure AD identity as the backbone, user and device groups (i.e. schools, classes, grades) update automatically while providing insights to IT on usage patterns and any possible threats to the security of their users. Due to this common identity, all the devices and users that show up and are managed in Intune for Education will also be manageable in full Intune. This also means that you can leverage the new co-management capabilities with ConfigMgr in either Intune for Education or full Intune.
To find out more about Azure AD features in Intune for Education compared to other education offers, click on Learn what Azure Active Directory features come with Intune or Education and other plans at the top of the Intune for Education page. Note that customers can have Azure Premium and Azure AD EDU, with Office 365 or Intune for Education, assigned together or separately with no issues removing one or the other. You can also get your free 90-trial of Intune for Education (with full Intune) on this page too!

What’s new in version 1710 of System Center Configuration Manager

Update 1710 for System Center Configuration Manager current branch is available as an in-console update for previously installed sites that run version 1610, 1702, or 1706.

The following sections provide details about changes and new capabilities introduced in version 1710 of Configuration Manager.

Site infrastructure

Updates for Peer Cache

Beginning with this release, Peer Cache is no longer a pre-release feature. No other changes for Peer Cache are introduced with this release. For more information, see Peer Cache for Configuration Manager clients.

Cloud distribution point support for Azure Government Cloud

You can now use cloud-based distribution points in the Azure Government cloud.

Inventory default unit revision

As devices now include hard drives with sizes in the gigabyte (GB), terabyte (TB) and larger scales, this release changes the default unit (SMS_Units) used in many views from megabytes (MB) to GB. For example, the v_gs_LogicalDisk.FreeSpace value now reports GB units.

Client management

Co-management for Windows 10 devices

In the previous Windows 10 updates, you can already join a Windows 10 device to on-premises Active Directory (AD) and cloud-based Azure AD at the same time (hybrid Azure AD). Starting with Configuration Manager version 1710, co-management takes advantage of this improvement and enables you to concurrently manage Windows 10, version 1709 (also known as the Fall Creators Update) devices by using both Configuration Manager and Intune. It’s a solution that provides a bridge from traditional to modern management and gives you a path to make the transition using a phased approach. For details, see Co-management for Windows 10 devices.

Restart computers from the Configuration Manager console

Beginning with this release, you can use the Configuration Manager console to identify client devices that require a restart, and then use a client notification action to restart them.

See How to manage clients in System Center Configuration Manager

Application Management

Improvements for Run Scripts

This release brings several improvements to the Run Scripts feature, which lets you deploy PowerShell scripts to run on managed devices. This feature was first introduced in version 1706.

Improvements include:

  • Use Security Scopes to help control who can use Run Scripts
  • Real-time monitoring of the scripts you run
  • Parameters for the script display in Create Script Wizard, support validation, and are identified as mandatory or optional.

For more on using Run Scripts, see Create and run scripts.

New mobile application management policy settings

The following settings have been added to the mobile application management policy settings:

  • Disable contact sync: Prevents the app from saving data to the native Contacts app on the device.
  • Disable printing: Prevents the app from printing work or school data.

Software Center no longer distorts icons larger than 250×250

With this release, Software Center will no longer distort icons that are larger than 250×250. Software Center made such icons look blurry. You can now set an icon with a pixel dimensions of up to 512×512, and it displays without distortion.

To add an icon for your app in Software Center, see Create applications.

Operating system deployment

Tip

Beginning with the Windows 10, version 1709 (also known as the Fall Creators Update) release, Windows media includes multiple editions. When configuring a task sequence to use an operating system upgrade package or operating system image, be sure to select an edition that is supported for use by Configuration Manager.

Add child task sequences to a task sequence

You can add a new task sequence step that runs another task sequence, which creates a parent/child relationship between the task sequences. This allows you to create more modular task sequences that you can re-use.

To learn more about the child task sequence, see Child task sequence.

Software Center customization

You can add enterprise branding elements and specify the visibility of tabs on Software Center. You can add your Software Center specific company name, set a Software Center configuration color theme, set a company logo, and set the visible tabs for client devices.

For more information, see Plan for and configure application management in System Center Configuration Manager.

Software updates

Surface driver updates

Beginning with this release, managing Surface driver updates is no longer a pre-release feature.

Reporting

Limit Windows 10 Enhanced telemetry to only send data relevant to Windows Analytics Device Health

You can now set the Windows 10 telemetry data collection level to Enhanced (Limited). This setting enables you to gain actionable insight about devices in your environment without devices reporting all of the data in the Enhanced telemetry level with Windows 10 version 1709 or later.

For more information, see How to configure client settings in System Center Configuration Manager.

Mobile device management

Actions for non-compliance

You can now configure a time-ordered sequence of actions that are applied to devices that fall out of compliance. For example, you can notify users of non-compliant devices via e-mail or mark those devices non-compliant. For details, see Set up actions for non-compliance.

Windows 10 ARM64 device support

Hybrid mobile device management (MDM) scenarios will be supported on ARM64 devices running Windows 10 when these devices are available.

These scenarios include:

Note

Deploying .appxbundle applications built for multiple architectures may not work on these devices, and this scenario is not supported at this time.

Improved VPN Profile Experience in Configuration Manager Console

With this release, we’ve updated the VPN profile wizard and properties pages to display settings appropriate for the selected platform:

  • Each platform has its own workflow, meaning that new VPN profiles contain only the setting supported by the platform.
  • The Supported Platforms page now appears after the General page. You now choose the platform before setting property values.
  • When the platform is set to AndroidAndroid for Work, or Windows Phone 8.1, the Supported platforms page is not needed and is not displayed.
  • The Configuration Manager client-based workflow has been combined with the hybrid mobile device (MDM) client-based Windows 10 workflows; they support the same settings.
  • Each platform workflow includes just the settings appropriate for that workflow. For example, the Android workflow contains settings appropriate for Android; settings appropriate for iOS or Windows 10 Mobile no longer appear in the Android workflow.
  • The Automatic VPN page is obsolete and has been removed.

These changes apply to new VPN profiles.

To minimize compatibility risk, existing VPN profiles are unchanged. When you edit an existing profile, the settings appear as they did when the profile was created.

For more information, see VPN Profiles on mobile devices in System Center Configuration Manager.

Limited support for Cryptography: Next Generation (CNG) certificates

Configuration Manager has limited support for Cryptography: Next Generation (CNG) certificates. Configuration Manager clients can use PKI client authentication certificate with private key in CNG Key Storage Provider (KSP). With KSP support, Configuration Manager clients support hardware-based private key, such as TPM KSP for PKI client authentication certificates.

For more information, see CNG certificates overview.

Protect devices

Create and deploy Exploit Guard policies

You can create and deploy policies that manage all four components of Windows Defender Exploit Guard, including attack surface reduction, controlled folder access, exploit protection, and network protection.

Create and deploy Windows Defender Application Guard policy

You can create and deploy Windows Defender Application Guard policies by using the Configuration Manager endpoint protection.

Device Guard policy changes

The following three changes have been made in relation to Device Guard policies:

  • Device Guard policies have been renamed to Windows Defender Application Control policies. So, for example, the Create Device Guard policy wizard is now named Create Windows Defender Application Control policy wizard.
  • Devices using the Fall Creators Update for Windows version 1709 don’t require a restart to apply the Windows Defender Application Control policies. Restarting is still the default, but you can turn off restarts.
  • You can set devices to automatically run software trusted by the Intelligent Security Graph.