For Handysize, the source explained (citation):

Following the Baltic Circular 39/19, from 1 January 2020 the benchmark Handysize vessel will be the 38,000 dwt and 7 T/C routes.

And for Panamax (citation):

Following the Baltic Circulars 28/19 & 38/19, from 1 January 2020 the benchmark Panamax vessel will be the 82,500 dwt and 5 T/C routes.

In response, we have:

1. Archived the series by renaming with an "_19" specifier, marking as "discontinued"in their metadata, and segregating in the catalog.
2. Created one-for-one replacements for the weekly series, which start at 3 January
3. The monthly and quarterly replacements are pending sufficient data.

The series reside in the historical catalog:

• Cross-country datasets » Baltic Exchange » Baltic Dry Index