Hi @DeanR_etg,
Welcome to the Google Cloud Community!
Correct! If the most recent data has not yet been added to the Google Earth Engine (GEE) Data Catalog, it is unfortunately not possible to access it through GEE until Google updates the catalog with this new data.
However, since you have access to the original source, you could opt to manually download the data files, though this process requires more effort in your part.
Additionally, you have the option to submit a feature request for the current dataset at the following location - Dataset requests.
I hope this answers your question. Thank you.