"The latest developments" means thing that have just recently changed.

We talk about "the latest developments" in ongoing news stories:

Have you heard the latest developments in the bank scandals?

There can also be "developments" in gossip:

So what are the latest developments with Jim and Lisa?

And industries and professions have "developments" in technology, the competitive landscape, and so on:

Always try to keep up with the latest developments in your field.