Virtualization Blog

Discussions and observations on virtualization.

XenServer 7.4 Available for Download!

Hello XenServer community,

It is our pleasure to announce the release of 7.4, the latest update in the CR release track.

XenServer 7.4 offers customers following the CR release track access to the latest product features designed to enhance application, desktop and server virtualization deployments. For customers running XenServer 7.3 (up until now the most recent CR), Citrix recommends upgrading to 7.4 at the earliest convenience to maintain support.

For customers following the LTSR release track (starting with XenServer 7.1 LTSR), Citrix recommends reviewing the XenServer 7.4 release notes to determine if 7.4 would deliver additional benefits to their virtual environments.

Note: The decision to embark on the CR release track entails the adoption of new CRs as they are made available in order to maintain support, as hotfixes for each CR are only made available for up to 4 months after the next CR is released. Please see the XenServer Product Lifecycle page for details.

XenServer 7.4 is available in the following editions:

  • Free Edition
  • Standard Edition
  • Enterprise Edition

IMPORTANT NOTICE FOR XENSERVER FREE EDITION USERS

The release of 7.3 introduced several changes to feature availability in the Free Edition of XenServer. For details regarding these changes, please see XenServer 7.3: Changes to the Free Edition.

NEW FEATURES IN XENSERVER 7.4

The following features and functionality are new in XenServer 7.4:

  • vGPU-enabled VM live-migration (XenMotion)
  • AMD MxGPU support
  • Citrix Cloud XenApp/XenDesktop subscriptions to XenServer (licensing)

For more information, including the edition(s) in which each feature can be found, refer to the XenServer 7.4 release notes.

To download XenServer 7.4, please visit the XenServer Product Download page.

Cheers!

Andy

 

Recent Comments
Ilsa Loving
Why is 7.1 no longer available? I thought it was supposed to be an LTSR version. While the removal of features was dissappointin... Read More
Wednesday, 07 March 2018 01:03
David Cottingham
Hi Ilsa, Back in August last year Citrix announced that hotfixes on each release would be available to Free Edition customers unt... Read More
Thursday, 08 March 2018 01:26
Andreas Becker
Where are the nVidia Grid drivers for XenServer 7.4 ??? Can´t find them at nVidia Enterprise Licensing Portal ...
Thursday, 15 March 2018 17:35
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Announcing the Availability of XenServer 7.3

We're pleased to announce the availability of XenServer 7.3, the latest Current Release (CR)!

CRs Versus LTSRs

XenServer 7.3 offers customers following the CR release track access to the latest product features designed to enhance application, desktop and server virtualization deployments. For customers running XenServer 7.2 (up until now the most recent CR), Citrix recommends upgrading to 7.3 at the earliest convenience to maintain support.

For customers following the LTSR release track (starting with XenServer 7.1 LTSR), Citrix recommends reviewing the XenServer 7.3 release notes to determine if 7.3 would deliver additional benefits to their virtual environments.

Note: The decision to embark on the CR release track entails the adoption of new CRs as they are made available in order to maintain support, as hotfixes for each CR are only made available for up to 4 months after the next CR is released. See the XenServer Product Lifecycle page for details.

XenServer 7.3 is available in the usual three editions:

  • Free Edition
  • Standard Edition
  • Enterprise Edition

Important Notice for XenServer Free Edition Users

With the release of 7.3 comes several changes to feature availability in the Free Edition of XenServer. For details regarding these changes, please see XenServer 7.3: Changes to the Free Edition.

New Features in XenServer 7.3

The following is a list of the features and functionality introduced in XenServer 7.3:

  • Enhanced security for Windows virtual machines by support for Bromium Secure Platform
  • Changed Block Tracking API (for enhanced backups)
  • New and expanded guest OS support
  • Support for VLAN tagging on management and storage network interfaces
  • IGMP snooping for IPv4 multicast support
  • SMB v3.0 for ISO storage repositories (SRs)
  • Improvements to XenServer Conversion Manager
  • Localization for Email Performance Alerts
  • Support for BIOS Asset Tags
  • Citrix Director integration
  • Enablement for XenDesktop Tablet Mode (enables Windows 10 Continuum experience in virtualized desktop environments)

For more information, including the edition(s) in which each feature can be found, please refer to the XenServer 7.3 release notes.

To download XenServer 7.3, please visit the XenServer Product Download page.

Cheers!

Andy

 

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XenServer 7.3: Changes to the Free Edition

Today we're pleased to announce the release of XenServer 7.3, which includes a raft of new features and improvements. Whilst you can read all about exactly what's in that release over on the release announcement blog, I wanted to provide clarity on the changes we're making to the Free Edition of XenServer as part of the release.

As many of you will be aware, XenServer is available in three editions: Free, Standard, and Enterprise. All of them are installed from the same ISO, and all are equally open source. The Standard edition is almost identical to the Free edition in terms of feature set, but includes commercial support and an extended period of hotfix availability from Citrix, whilst the Enterprise edition enables a variety of additional features.

Having carefully considered what features are in each edition, we've taken the decision to move some features out of the Free edition, and into Standard.

The full list of features being moved is:

  • Dynamic Memory Control
  • Xen Storage Motion
  • Active Directory Integration
  • Role Based Access Control
  • High Availability
  • GPU Pass-Through
  • Site Recovery Manager (Disaster Recovery)
  • XenCenter Rolling Pool Upgrade Wizard
  • Maximum Pool Size Restricted To 3 Hosts (existing larger pools will continue to work, but no new host joins will be permitted)

This will therefore make the Standard edition substantially different to the Free edition. No features are moving from Free to Enterprise. You can find all of the details in the full XenServer 7.3 feature matrix.

I suspect many readers will be asking "why?". We have thousands of customers who trust XenServer to host their workloads, and we need to make sure we can invest in the product for them. Of the many thousands of customers using the Free edition, we hope that those using it for large deployments (and likely to be using the features above) will consider purchasing a subscription to enable access not just to the features above, but also the patch/hotfix stream for each release for an extended period (roughly 7 months from release versus 3 months for Free users), access to Long Term Service Releases (up to 10 years of maintenance) and support services from Citrix.

I realise that this news will be difficult for people who make use of the Free edition of XenServer in larger environments. We have looked carefully at how the revised Free edition compares to other free virtualisation platforms on the market, and concluded that even with this change, XenServer's free feature set is still great for small deployments or home labs. Evidently Citrix will continue to add functionality to all three editions in the future: as you can see from 7.3 release notes, there is plenty going on!

As usual, you can get in touch with me via the comments function below, or on Twitter. I'll endeavour to reply as soon as practical!

Recent Comments
Sam McLeod
David, you know I hold the upmost respect for you so please don't take this personally. This is a typical, big enterprise, Micros... Read More
Thursday, 14 December 2017 02:03
David Cottingham
Hi Sam, Firstly, I'll say that I can understand where you're coming from. I recognise that there will be some people affected by ... Read More
Thursday, 14 December 2017 03:32
Sam McLeod
What happens if a host dies in one of your existing pools and you need to replace it? Unless your pool is tiny (3 or less hosts) -... Read More
Thursday, 14 December 2017 05:05
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A Great Time to Take A Look at XenServer Enterprise!

Good afternoon everyone,

As we make our way through the last quarter of the year, I wanted to remind the community of the significant progress the XenServer team has achieved over the last 18 months to make XenServer the awesome hypervisor that it is today!

While many of you have been making the most of your free XenServer hypervisor, I would like to take this opportunity to review just a few of the new features introduced in the latest releases of the Enterprise edition - features that our customers have been using to optimize their application and desktop virtualization deployments.

For starters, we've instrumented automated updates and live patching, features that streamline the platform upgrade process by enabling multiple fixes to be installed and applied with a single reboot and in many cases, no reboot whatsoever, significantly reducing downtime for environments that require continuous uptime.

We've also worked with one of our partners to introduce a revolutionary approach to securing virtual workloads, one that is capable of scanning raw memory at the hypervisor layer to detect, protect and remediate against the most sophisticated attacks on an IT environment. This unique approach provides an effective line of defense against viruses, malware, ransomware and even root kit exploits. What's more, this advanced security technique complements security mechanisms already implemented to further strengthen protection of critical IT environments.

Providing a local caching mechanism within the XenServer hypervisor enables our virtual desktop customers to dramatically improve the performance of their virtual desktops, particularly during boot storms. By caching requests for OS image contents in local resources (i.e., memory and storage), XenServer is able to work with Provisioning Services to stream contents directly to virtual desktops, reducing resource utilization (network and CPU) while enhancing user productivity.

Expanded support for virtual graphics allows our customers to leverage their investments in hardware from the major graphics vendors and enable GPU-accelerated virtual desktops that effectively support graphics-intensive workloads.

Designing, developing and delivering features that bring out the best in virtualization technologies... that's our focus. And thanks to the invaluable insight and feedback provided by this community, will continue to be the driving force behind our innovation efforts.

Interested in evaluating the features described above, click here.

Until next time,

Andy

 

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Citrix Announces First Cumulative Update for XenServer 7.1

Citrix has posted a blog announcing the availability of XenServer 7.1 CU1, the first cumulative update for the XenServer 7.1 Long-Term Support Release (LTSR).

CU1 rolls-up all hotfixes released on XenServer 7.1 to date. While there are no new features introduced in this update, a number of additional fixes are included to further enhance and simplify XenApp and XenDesktop environments. Information pertaining to these fixes can be found in the release notes.

Of particular significance, this cumulative update provides customers on Long-Term Support Release (LTSR) 7.1 with the latest platform fixes applicable to v7.1. Unlike Current Releases (CR), which provide access to new features on an almost quarterly basis, Long-Term Support Releases are designed for customers who, possessing the features they need to optimize their XenApp and XenDesktop environments, intend to remain on the LTSR for the foreseeable future. For these customers, using a Long-Term Support Release offers stability - Citrix will support the LTSR for up to 10 years – as well as access to fixes as they become available. You can learn more about the differences between Long-Term Support and Current Releases here.

Wondering if XenServer 7.1 Enterprise edition is right for your organization? Click here to download a free trial version.

Cheers!

Andy

 

Recent comment in this post
Sam McLeod
Great to see a roll-up for all hotfixes for 7.1 to date, it was very painful figuring out what patches to apply and what not to in... Read More
Sunday, 17 September 2017 23:15
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About XenServer

XenServer is the leading open source virtualization platform, powered by the Xen Project hypervisor and the XAPI toolstack. It is used in the world's largest clouds and enterprises.
 
Technical support for XenServer is available from Citrix.