O'Reilly Open Source Convention


The O'Reilly Open Source Convention (OSCON) was an American annual convention for the discussion of free and open-source software. It was organized by publisher O'Reilly Media and was held each summer, mostly in Portland, Oregon, from 1999 to 2019.

O'Reilly Open Source Convention
OSCON flag
OSCON flag
GenreOpen Source (mainly software)
Location(s)Portland, Oregon (exceptions)
CountryUnited States
Inaugurated1999; 25 years ago (1999)
Most recent2019; 5 years ago (2019)
Organized byO'Reilly Media
Robin Hanson at OSCON 2007
Overview of OSCON 2009
Michal Migurski, Tim O'Reilly, and Jared Smith at OSCON 2013



OSCON grew out of The Perl Conference, but the amount of Perl content continued to decline each year. The first Perl Conference took place in 1997. The first OSCON was held in 1999.[1] [2]

Notable events
  • The OpenOffice.org open source project was announced at the 2000 conference in Monterey.[3]
  • The OpenStack open source project was launched at the 2010 conference.[4]
  • OSCON has been the host to Larry Wall's State of the Onion keynotes.
  • All O'Reilly events were cancelled in response to the COVID-19 pandemic, and the company closed the in-person conference portion of their business.[5]

See also



  1. ^ "OSCON Celebrates 10th Year: Annual O'Reilly Open Source Convention Opens Registration and Announces Program". 2008-04-15. Retrieved 2013-03-04.
  2. ^ "Perl Foundation Conferences". YAPC.
  3. ^ Phipps, Simon (18 October 2006). "Birthday Presents". Blogs.Sun.Com. Sun Microsystems. Archived from the original on 17 April 2014. Retrieved 16 April 2014.
  4. ^ "OpenStack Launch Bash". O'Reilly Media. 20 July 2010. Retrieved 16 April 2014.
  5. ^ "From O'Reilly President, Laura Baldwin: O'Reilly's events business". 2020-03-24. Retrieved 2020-03-24.
  • Official website, oscon.com