We are pleased to announce the release of Apache CloudStack CloudMonkey v6.5.0, the latest version of the popular command-line interface tool for managing Apache CloudStack environments.

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.

Swen Brüseke has recently been appointed as a Committer to the Apache CloudStack project. In this interview, Swen shares insights into his professional journey, his views on open-source development, recent projects he’s contributed to, and his perspective on the future of the CloudStack community.

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.

The Apache CloudStack project announces the LTS release of 4.19.3.0 and 4.20.1.0 that address the following security issues:

• CVE-2025-26521 (severity 'Critical')
• CVE-2025-30675 (severity 'Low')
• CVE-2025-47713 (severity 'Critical')
• CVE-2025-47849 (severity 'Moderate')
• CVE-2025-22829 (severity 'Low')

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.

The Apache CloudStack European User Group (CSEUG) convened on May 8th in Vienna, Austria, marking its return with a technically focused event that brought together a dynamic cross-section of users, contributors, developers, and operators from across Europe. Hosted at Quartier Belvedere Central, the event delivered a full day of in-depth technical sessions, collaborative community interactions, and practical insights into real-world deployments and advancements within the Apache CloudStack ecosystem.

We’re excited to share that the CloudStack India User Group (CSIUG) will be held on 11th July 2025 at the D1 Yotta Data Center in Greater Noida.

This event will bring together CloudStack users, developers, and operators from across India for a day of technical sessions, community collaboration, and in-depth discussions on building and running open-source cloud infrastructure. Expect real-world case studies, project updates, and valuable insights from across the CloudStack ecosystem.

The 2025 CSIUG is supported by ShapeBlue, Yotta and LINBIT.