Upcoming change in Glossary v2: Library of Congress Subject Headings

[Robb]

Coming soon is a useful enhancement to the data model and the API.
New subject attributes are being added to everything in the database.
For example, whether a glossary entry is specially relevant to
insurance law, property law, etc.

I'm really looking forward to this: It will help provide context for
the definitions (which are sometimes odd if you don't know what they
apply to), and also allow searches to be filtered.

I'm also adding more sources to the database; I'll post another
announcement when this is done.