## [Mermaid 12 in Confluence & Jira: UML Use Case Diagrams and a New Look](/blog/mermaid-12-confluence-jira.md)

September 19, 2026 ·

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5 min read

[NGPilot](https://ngpilot.com)

Mermaid 12 is the biggest release the diagram language has had in years — and as of today it is live in all three NGPILOT diagram apps: **Enhanced Markdown for Confluence**, **Mermaid Plus for Confluence**, and **Mermaid Plus Diagrams for Jira**. You get the headline feature immediately: **UML use case diagrams**, the diagram type Confluence and Jira teams have been asking for since requirements documents moved out of dedicated UML tools.

**Tags:**

* [confluence](/blog/tags/confluence.md)
* [jira](/blog/tags/jira.md)
* [mermaid](/blog/tags/mermaid.md)
* [diagrams](/blog/tags/diagrams.md)
* [release-notes](/blog/tags/release-notes.md)
* [use-case-diagram](/blog/tags/use-case-diagram.md)

[**Read more**](/blog/mermaid-12-confluence-jira.md)