iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
iPhone OS 3.0 Beta 4 and iTunes 8.2 Pre-Release to Developers [Blu-Ray Evidence?]
Continuing a pattern of biweekly releases, Apple tonight seeded the fourth beta version of iPhone OS 3.0 to developers. Apple also issued a developer pre-release version of iTunes 8.2, which is required to activate the new beta. No new features in the fourth beta version have been revealed as of yet.
The iPhone OS 3.0 was first demonstrated at a media event in mid-March and will bring over 100 new features to users. The iPhone OS 3.0 is expected to be a major focus of Apple's sold out Worldwide Developers Conference to be held in San Francisco in June.
Update: One forum poster points out that the latest iTunes 8.2 beta carries references to Blu-Ray data from Gracenote, suggesting that iTunes could support the reading/recognizing of Blu-Ray discs. This note is not present in the current version of iTunes:
From iTunes 8.2 Beta