news item and release-notes if relevant for 5.1.0-M1

Signed-off-by: Håvard Ottestad <[email protected]>

site/content/news/rdf4j-510-M1.md

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+---
+title: "RDF4J 5.1.0 Milestone 1"
+date: 2024-11-10T14:05:43+0100
+layout: "single"
+categories: ["news"]
+---
+Milestone number 1 of the upcoming 5.1.0 release of RDF4J is now available for download.
+
+RDF4J 5.1.0 is a minor release focusing on ... .
+
+This milestone build is not yet feature-complete, but we are putting it out to receive early feedback on all the improvements we have put in.
+
+<!--more-->
+
+ - [issues fixed in 5.1.0 Milestone 1](https://github.com/eclipse/rdf4j/issues?q=is%3Aissue+label%3AM1+is%3Aclosed+milestone%3A5.1.0)
+ - [issues planned for 5.1.0](https://github.com/eclipse/rdf4j/milestone/107)
+
+### Links
+
+- [Download RDF4J](/download/)