Which Happened First?

Release of OxygenOS

Release of OxygenOS
Image: OnePlus · Public domain · source

OxygenOS is an Android-based operating system (OS) developed by Chinese smartphone manufacturer OnePlus exclusively for their smartphones. OxygenOS was developed for their overseas market. There used to also be another version of the OS designed specifically for the Chinese market called HydrogenOS.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Timeline

  1. Release of Android AutoMarch 19, 2015
  2. Release of IOS 9September 16, 2015
  3. Release of OS X El CapitanSeptember 30, 2015
  4. Release of OxygenOS (this page)March 2015
  5. Release of Windows 10July 29, 2015
  6. Release of Windows 10 MobileNovember 20, 2015

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