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The recent CloudStack European User Group in London gathered cloud builders, researchers, and technology enthusiasts to explore the latest developments in Apache CloudStack and share practical experiences from the field. With a full agenda of technical talks and community discussions, the event once again highlighted the strength of collaboration in the CloudStack ecosystem.

Suresh Anaparti

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:

We're revealing the full agenda for the upcoming CloudStack European User Group in London, a must-attend event for anyone working with or interested in open-source cloud infrastructure. This year's agenda brings together leading experts from across the CloudStack ecosystem to share real-world use cases, technical deep dives, and community discussions.

From building Tier 1 infrastructure and exploring the future of orchestration, to enabling scientific research and rethinking performance metrics—there’s something for everyone. Whether you're a developer, architect, or decision-maker, this event is your opportunity to connect, learn, and shape the future of Apache CloudStack.

The 2025 edition of the CloudStack India User Group (CSIUG) brought together passionate users, contributors, and innovators from across the region to explore the evolving landscape of Apache CloudStack. Hosted in person at the D1 Yotta Data Center in Greater Noida and supported by ShapeBlue, Yotta and LINBIT, the event was packed with technical talks, deployment insights, and collaborative energy.

Jamie Pell

We’re pleased to announce the Autumn 2025 edition of the CloudStack European User Group (CSEUG), taking place on September 18th at Events @ No.6 in the City of London.

This event will bring together members of the European CloudStack community for a full day of technical discussions, knowledge exchange, and networking. Attendees can expect insights into real-world CloudStack use cases, community developments, and best practices in open-source cloud infrastructure.

This edition of CSEUG is supported by ShapeBlue and StorPool Storage.

Pearl Dsilva

The Apache CloudStack project is pleased to announce the release of CloudStack 4.19.3.0 and 4.20.1.0.

The CloudStack releases 4.19.3.0 and 4.20.1.0 are maintenance releases as part of their 4.19.x and 4.20.x LTS branches respectively. CloudStack release 4.19.3.0 contains more than 120 fixes and improvements since CloudStack 4.19.2.0 and CloudStack 4.20.1.0 contains more than 150 fixes and improvements since CloudStack 4.20.0.0 release.