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+**June 2026:** Major releases `Particle` and `DecayLanguage` 1.0.0.
+
 **May 2026:** [Scientific Python][] blog post ["mplhep: matplotlib for particle physics"](https://blog.scientific-python.org/introducing-mplhep/).
 
 **March 2026:** Package `hypothesis-awkward` joined Scikit-HEP.