----- Forwarded message from Keir Fraser <keir....@gmail.com> -----

From: Keir Fraser <keir....@gmail.com>
To: "xen-de...@lists.xensource.com" <xen-de...@lists.xensource.com>,
        xen-us...@lists.xensource.com
Cc: 
Date: Fri, 25 Mar 2011 15:11:53 +0000
Subject: [Xen-devel] [ANNOUNCE] Xen 4.1 released!

The Xen team is pleased to announce the release of Xen 4.1.

The result of nearly 12 months of development, new features include:
 * A re-architected and improved XL toolstack replacing XM/XEND
 * Prototype credit2 scheduler designed for latency-sensitive workloads and
   very large systems.
 * CPU Pools for advanced partitioning.
 * Support for large systems (>255 processors)
 * Support for x86 Advanced Vector eXtension (AVX).
 * New Memory Access API enabling integration of 3rd party security
   solutions into Xen virtualized environments.
 * Many IOMMU fixes (both Intel VT-d IOMMU and AMD IOMMU).
 * Many toolstack and buildsystem fixes for Linux and NetBSD hosts.
 * Thirdparty libs: libvirt driver for libxl has been merged to upstream
   libvirt.
 * HVM guest PXE boot enhancements, replacing gPXE with iPXE.
 * Even better stability through our new automated regression tests.

Detailed release notes, including a more extensive feature list:
  http://wiki.xen.org/xenwiki/Xen4.1

To download tarballs:
  http://xen.org/products/xen_source.html
Or the Mercurial source repository (tag 'RELEASE-4.1.0'):
  http://xenbits.xen.org/xen-unstable.hg

And the announcement on the Xen blog:
  http://blog.xen.org/index.php/2011/03/25/xen-4-1-releases/

Thanks to the many people who have contributed to this release!

 Regards,
 The Xen Team



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