The developer communities in Paris, London, and Seattle came together for International Redis Meetup Week, with meetups held at various locations. The events featured talks from experts on various topics related to Redis, including its use in production systems, scalability, performance, caching, background tasks, and geospatial indexing. Attendees had the opportunity to network and get involved in planning future events, with some communities also looking for interested individuals to host or speak at meetups.