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 ### Enhancements
 - Added support to append to a dataset of references for HDMF-Zarr. @mavaylon1 [#1157](https://github.com/hdmf-dev/hdmf/pull/1157)
+- Added support for datasets to be expandable by default for the HDF5 backend. @mavaylon1 [#1158](https://github.com/hdmf-dev/hdmf/pull/1158)
+
 
 ## HDMF 3.14.3 (July 29, 2024)