1) The document discusses how Nielsen moved from using Kafka's offset manager to store offsets to using an RDS database for offset storage. This provided more consistent committing of offsets and allowed subscribing to topics with different offset strategies. 2) Key aspects of the new approach included building an offsets map with topic and partition information, getting current offsets from the database, and implementing a "two phase commit" to the database and Kafka in a consistent way. 3) Benefits of the new offset storage approach included faster restart times, improved monitoring, better disaster recovery, and unified configurations.