tldr; There was a State of the Map event July 28-30 in Milan, Italy.

There was a lot of discussion of vector tiles and that eventually the homepage of OpenStreetMap.org would use vector tiles.

There are a few tools for fighting vandalism, but they aren't at the level of replacing a human editor.

A new data model for OpenStreetMap was discussed and there is discussion to whether they should improve the current one or replace it entirely.

There is a proposal for a new public transport schema to help make routing problems easier while also making it simpler for mappers to use.

Grants to the OpenStreetMap Foundations helped bring reps from underrepresented communities to the conference. Also, gender diversification was discussed.