Firmware upgrade 4.0 for the OM-D E-M1 will update features such as focus bracketing and focus stacking, while upgrade 2.0 for the OM-D E-M5 Mark II will add 4K timelapse video, for example.
For full details see below, or visit
https://www.getolympus.com/upgrade
4.0 upcoming feature upgrade for OM-D E-M1 (available late November 2015)
• Focus bracketing
• Focus stacking
• Advanced focus peaking
• Silent mode
• Improved anti-shock mode
• Advanced Olympus capture
• S-OVF
• 4K timelapse video
• Live composite on OI.Share
• Manual focus clutch disable
• Menu cursor memory position
• Movie image stabilisation with 5-axis optical IS and digital IS
• 24p/25p frame rate
• Movie info display
• Movie rec start with RM-UC1 release cable
• Time code settings
• M-IS1 and M-IS2 image stabilisation options
• Slate tone
• Synchronised PCM audio recording in video
2.0 upcoming feature upgrade for OM-D E-M5 Mark II (available late November 2015)
• Focus bracketing
• Advanced Olympus capture
• S-OVF
• 4K timelapse video
• Live composite on OI.Share
• Manual focus clutch disable
• Slate tone
• Synchronised PCM audio recording in video
• Movie-exclusive picture mode flat; noise filter for video shooting
• Smooth aperture supported with the M.Zuiko premium lenses and M.Zuiko 14-42mm EZ lens