Magnolia is an enterprise digital experience platform (DXP), which began as an open-source content management system (CMS) and is based on Content repository API for Java.
It is developed and maintained by Magnolia International Ltd., headquartered in Basel, Switzerland with other offices around the world. 
Magnolia is used by organisations to create, manage, and deliver digital content. It includes features such as content versioning, workflow management, personalisation, and multi-language support. It can be run as a self-hosted DXP or with Magnolia’s managed DX Cloud services with a Platform-as-a-Service (PaaS) implementation.
Major releases.
 ;templatestyles src="Legend/styles.css" / ;  Latest branch
 ;templatestyles src="Legend/styles.css" / ;  Older branch, still supported
 ;templatestyles src="Legend/styles.css" / ;  Older branch in extended end of life, partially supported
 ;templatestyles src="Legend/styles.css" / ;  End of Life
Architecture.
Magnolia CMS is a Java-based content management system that uses a JCR repository to store, retrieve and search data. In this respect Magnolia is similar to Adobe Experience Manager, Hippo CMS and Jahia which also use JCR. Magnolia uses Apache Jackrabbit, the JCR reference implementation by default. 
Modules.
Magnolia is built with a modular architecture. The system core and features such as the page editor, digital asset management and cache are packaged into separate modules. The module mechanism is also used to package and deploy websites built with Magnolia. The templates, themes and functionality used on a website are split into separate modules.
Magnolia International Ltd. provides commonly used feature modules such as Commenting and Personalisation. The user community has developed further modules for specific tasks such as for checking broken links.
Users.
Magnolia has clients around the world, in sectors including financial services, government, pharmaceuticals, manufacturing, and e-commerce.
References.
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