Update (2017-10-30): the official announcement is here.
This is the first major update after @dan moved on from the BitShares (BTS) project.
The most significant feature in this release is the ability to revive smart-coins aka bit-Assets after black swan events, and the ability to update price feeds, so traders will no longer need to worry about the markets be frozen or unable to settle. There are also some other bug fixes and improvements.
A protocol upgrade (hard fork) is scheduled at 2017-11-27 14:40:00 UTC.
Release notes and downloads: https://github.com/bitshares/bitshares-core/releases/tag/2.0.171025