• Fix the backup-dir configuration setting (#4510)
• Error message from requirements check on updatedb (#4513)
• Fix #4512. Drush::redispatchOptions() no longer includes shortcut options (-y) (#4515)
• Issue #4032 queue run lease time (#4322)
• Fix #4134,#4438. Use Guzzle to fetch json in security commands (#4522)
• Change how we NULL the cache dir during deploy command. (#4533)
• Lots of minor docs improvements. See our new site at www.drush.org, including a command list.