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new 737192b07 blog for release 21 (#352)
737192b07 is described below
commit 737192b07a9391ed1f1f31c50e9f029027cd807a
Author: dahn <[email protected]>
AuthorDate: Thu Aug 28 10:18:26 2025 +0200
blog for release 21 (#352)
Co-authored-by: Daan Hoogland <[email protected]>
---
blog/2025-08-28-cloudstack-4.21-release/4.21.png | Bin 0 -> 139743 bytes
blog/2025-08-28-cloudstack-4.21-release/index.md | 108 +++++++++++++++++++++++
blog/authors.yml | 6 ++
static/img/Suresh.jpg | Bin 0 -> 591841 bytes
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diff --git a/blog/2025-08-28-cloudstack-4.21-release/index.md
b/blog/2025-08-28-cloudstack-4.21-release/index.md
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@@ -0,0 +1,108 @@
+---
+layout: post
+title: Apache CloudStack 4.21.0.0 Release
+tags: [announcement]
+authors: [suresh]
+slug: cloudstack-4.21.0.0-release
+---
+
+[](/blog/cloudstack-4.21.0.0-release)
+
+The Apache CloudStack project is pleased to announce the release of CloudStack
4.21.0.0, which is a Regular release.
+
+The CloudStack 4.21 release is the most recent release of the cloud management
platform. It comes as a product of extensive contributions from the project
development community.
+
+The 4.21 release contains 15 new features, around 40 improvements and more
than 150 bug fixes since 4.20. Some of the highlights include:
+
+<!-- truncate -->
+
+· CloudStack Extensions Framework and Orchestrate Anything extension, with
built-in extensions for Proxmox and Hyper-V
+
+· GPU Integration with KVM in CloudStack (Technical Preview)
+
+· Netris Network Plugin Integration
+
+· Cloudian HyperStore Object Store Plugin Integration
+
+· CloudStack Kubernetes Service (CKS) Enhancements
+
+· Create Instance from Backup
+
+· Instance Lease (Automatic Stop/Deletion)
+
+· Backup and Object Storage Limits
+
+· Virtual Trusted Platform Module (vTPM) Support
+
+· Support for KVM on s390x (IBM Z and LinuxONE) architecture
+
+· Management Server Maintenance Mode
+
+· Incremental Volume Snapshots for KVM
+
+· File-Based Disk-Only Instance Snapshots with KVM
+
+· Reconciliation of VM and Volume Copy/Migrate operations for KVM agent
+
+· Storage Access Groups
+
+· Volume Allocation Algorithm Support
+
+· VMware to KVM migration improvements
+
+· Storage plugins - Ceph, PowerFlex, StorPool, Linstor related fixes and
improvements
+
+· Several UI fixes and improvements, including Deploy Instance Form,
Announcement Banner, etc
+
+CloudStack Regular releases are supported only up to the next regular or LTS
release and can upgrade to the next releases when they are available.
+
+Apache CloudStack is an open-source software system designed to deploy and
manage large networks of virtual machines, as a highly available, highly
scalable Infrastructure as a Service (IaaS) cloud computing platform.
CloudStack includes an intuitive user interface and rich API for managing the
compute, networking software, and storage resources, that allows users to build
feature-rich public and private cloud environments. The project became an
Apache top-level project in March 2013 and [...]
+
+More information about Apache CloudStack can be found at:
https://cloudstack.apache.org/
+
+##### Documentation
+
+What's new in CloudStack 4.21.0.0:
https://docs.cloudstack.apache.org/en/4.21.0.0/releasenotes/about.html
+
+The 4.21.0.0 release notes include a full list of issues fixed, as well as
upgrade instructions from previous versions of Apache CloudStack, and can be
found at: https://docs.cloudstack.apache.org/en/4.21.0.0/releasenotes/
+
+The official installation, administration, and API documentation for each of
the releases are available on our documentation page:
https://docs.cloudstack.apache.org/
+
+##### Downloads
+
+The official source code for the 4.21.0.0 release can be downloaded from our
downloads page:
+
+https://cloudstack.apache.org/downloads.html
+
+In addition to the official source code release, individual contributors have
also made convenience binaries available on the Apache CloudStack download
page, and can be found at:
+
+https://download.cloudstack.org/el/8/
+
+https://download.cloudstack.org/el/9/
+
+https://download.cloudstack.org/suse/15
+
+https://download.cloudstack.org/ubuntu/dists/
+
+https://www.shapeblue.com/packages/
+
+##### A Word from the Community
+
+<div className="row">
+<div className="col col--3">
+
+![](/img/Suresh.jpg "Suresh Anaparti" class="blog-image")
+
+</div>
+<div className="col col--9">
+<em>
+“Apache CloudStack 4.21.0 is a Regular (non-LTS) release after long time, with
the last one being 4.12.0 in April 2019. This release introduces exciting new
features designed to help organizations build faster, more efficient clouds
while simplifying their management. The 4.21.0 release is a joint effort of the
whole community for the last six months and more – with contributors and
committers from around the world collaborating on feature
+
+development and code quality. Operators and users can now explore GPU
workloads, integrate external systems through the new extensibility framework,
and benefit from many other enhancements.
+
+The Apache CloudStack community is observing an accelerated shift of Cloud
Service Providers and Private Cloud builders towards open, transparent, and
community-led cloud computing platforms. Our collective focus remains on
ensuring the long-term sustainability and growth of the project.”
+</em>
+
+\- Suresh Kumar Anaparti, CloudStack Committer & PMC, 4.21 Release Manager
+</div>
+</div>
diff --git a/blog/authors.yml b/blog/authors.yml
index d69f03dd1..0632331e9 100644
--- a/blog/authors.yml
+++ b/blog/authors.yml
@@ -64,6 +64,12 @@ shwstppr:
url: https://github.com/shwstppr
image_url: https://github.com/shwstppr.png
+suresh:
+ name: Suresh Anaparti
+ title: PMC Member
+ url: https://github.com/sureshanaparti
+ image_url: https://github.com/sureshanaparti.png
+
pearl:
name: Pearl Dsilva
title: PMC Member
diff --git a/static/img/Suresh.jpg b/static/img/Suresh.jpg
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