Pan And Zoom of Charts (Data by Cycle, Data by Lane, QScore)
Ability to "Fix Scale" of graphs to allow for apples-to-apples comparison for cycles and allow for trend-spotting.
Enhancements to "Run Summary" stats tables
Improved reporting of Demultiplex results
Overall speed improvements
As always, most of this data is available via our API, for example the "NextSeq-500-V2-Nextera-XT-384-plex-E-Coli" public dataset, you can see stats with these API calls:
Blog Post: http://blog.basespace.illumina.com/2015/06/04/overhaul-of-sav-charts/