news item and release-notes if relevant for 4.3.15

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

site/content/news/rdf4j-4315.md

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+---
+title: "RDF4J 4.3.15 released"
+date: 2024-11-07T15:39:52+0100
+layout: "single"
+categories: ["news"]
+---
+RDF4J 4.3.15 is now available. This is a patch release fixing 4 bugs.
+
+For more details, have a look at the [release notes](/release-notes/4.3.15).
+<!--more-->
+### Links
+
+- [Download RDF4J](/download/)
+- [release notes](/release-notes/4.3.15).

site/content/release-notes/4.3.15.md

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+---
+title: "4.3.15"
+toc: true
+---
+RDF4J 4.3.15 is a patch release that fixes 4 issues.
+
+For a complete overview, see [all issues fixed in 4.3.15](https://github.com/eclipse/rdf4j/milestone/112?closed=1).
+
+### Acknowledgements
+
+This release was made possible by contributions from ???