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+28 entry validation
+#################
+
+API Breaks
+----------
+- N/A
+
+Features
+--------
+- Add validation methods to Entry and all subclasses
+
+Bugfixes
+--------
+- N/A
+
+Maintenance
+-----------
+- Add Snapshot test fixture mirroring the LINAC Collection
+- Introduce Nestable class interface
+
+Contributors
+------------
+- devagr