Add CHANGELOG-3.0.md for v3.0.0 release notes

tomkalon · tomkalon · commit 87329f5acace · 2025-10-22T13:46:44.000+02:00
diff --git a/CHANGELOG-3.0.md b/CHANGELOG-3.0.md
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+# CHANGELOG
+
+### v3.0.0 (2025-10-22)
+
+- [#397](https://github.com/Sylius/InvoicingPlugin/pull/397) Isolate plugin messaging: Introduce dedicated event & command buses for InvoicingPlugin ([@tomkalon](https://github.com/tomkalon))
