CHANGES.md in berkeley_library-alma-0.0.3 vs CHANGES.md in berkeley_library-alma-0.0.4

@@ -1,4 +1,11 @@
+# 0.0.4 (15 February 2022)
+
+- adds `BarCode` subclass of `RecordId`, to look up bibliographic records by
+  item barcode. Note that since barcodes have no consistent format, `BarCode`
+  objects need to be constructed deliberately with `BarCode#new`, not with
+  `RecordId#parse`.
+
 # 0.0.3 (3 February 2022)
 
 - use `local_field_996` instead of `other_system_number` when making SRU queries
   for Millennium records
 - accept leading upper-case B in bib numbers