Today we can celebrate a new release of OpenStack: version 2012.1 codenamed Essex is the fifth since its first announcement in July 2010. Join me to thank the over 200 people from over 50 companies that gave us a new version of OpenStack. These numbers are amazing. Just as a comparison, Linux kernel version 2.6.11 had 398 developers from 68 companies when it was released in 2005 (about 14 years since its first release)!
Thank you (in no particular order):
| Termie/Andy Smith | Andy Chong | Pádraig Brady | Chuck Short |
| Gabriel Hurley | Anthony Young | Thierry Carrez | Justin Santa Barbara |
| Brian Waldon | Chris Behrens | razique | Tihomir Trifonov |
| Dolph Mathews | Mark Washenberger | Armando Migliaccio | Andrew Bogott |
| Johannes Erdfelt | Monty Taylor | Michael Still | Dan Wendlandt |
| Vishvananda Ishaya | Chmouel Boudjnah | ZhongYue Luo | James E. Blair |
| Ziad Sawalha | Kevin L. Mitchell | Paul McMillan | jeffjapan |
| Dan Prince | Lorin Hochstein | Hengqing Hu | Emma Steimann |
| Mark McLoughlin | Brian Lamar | Daniel P. Berrange | Devin Carlen |
| Joe Heck | Julien Danjou | Josh Kearney | Stuart McLaren |
| Rick Harris | Ewan Mellor | Jason Kölker | Soren Hansen |
| Russell Bryant | gholt | Brad Hall | John Postlethwait |
| Alex Meade | Yogeshwar Srikrishnan | Dean Troyer | Trey Morris |
| Jesse Andrews | Tres Henry | Aaron Lee | lzyeval |
| Eoghan Glynn | Naveed Massjouni | John Dickinson | Florian Hines |
| jakedahn | Jay Pipes | Adam Gandelman | annegentle |
| Joe Gordon | Jake Dahn | Pete Zaitcev | Philip Knouff |
| John Garbutt | Mandell Degerness | Yaguang Tang | Alvaro Lopez Garcia |
| Alan Pevec | Justin Shepherd | MotoKen | Maru Newby |
| Jake Zukowski | David Subiros | Todd Willey | Derek Higgins |
| Jim Yeh | Andrews Medina | François Charlier | David Goetz |
| Mike Pittaro | masumotok | Neil Johnston | Monsyne Dragon |
| Peng Yong | Renuka Apte | Duncan McGreggor | Sandy Walsh |
| Ionuț Arțăriși | Michael Basnight | Liem Nguyen | Ed Leafe |
| Carlos Marin | Mike Perez | Mike Lundy | Yuriy Taraday |
| Doug Weimer | john-griffith | Ghe Rivero | Jonathan Gonzalez V |
| Cole Robinson | Tomoe Sugihara | Édouard Thuleau | monsterxx03 |
| Unmesh Gurjar | Scott Simpson | Joseph W. Breu | Tomas Hancock |
| Isaku Yamahata | Christopher MacGown | Matt Dietz | Juan J. Martinez |
| Samuel Merritt | Joe Savak | Adam Young | Felipe Reyes |
| Adrian Smith | Daniele Valeriani | Alvaro Lopez | Donagh McCabe |
| Dragos Manolescu | JC Martin | Eamonn O’Toole | aababilov |
| Doug Hellmann | Wayne A. Walls | Ben McGraw | Xiaohua Guan |
| Paul Bourke | yuanke wei | Dave Lapsley | Guang Yee |
| Yun Mao | David Mortman | Kiall Mac Innes | Bhuvan Arumugam |
| Nikhil Komawar | Pavan Kumar Sunkara | Ralf Haferkamp | garyk |
| Andrew Clay Shafer | MORITA Kazutaka | Salvatore Orlando | Ollie Leahy |
| Tyler North | Brent Roskos | Thorsten Tarrach | Likitha Shetty |
| Deepak Garg | Arvind Somya | Shevek | Jimmy Bergman |
| Jason Cannavale | Michael Barton | Darren Birkett | Ken Thomas |
| Major Hayden | Rainer Toebbicke | Yong Sheng Gong | Cor Cornelisse |
| Nachi Ueno | Darrell Bishop | Christian Berendt | Gabe Westmaas |
| Asbjørn Sannes | Stephane Angot | Nirmal Ranganathan | Jorge L. Williams |
| Sumit Naiksatam | Sean Dague | Tim Simpson | renukaapte |
| Scott Moser | Andrew Hutchings | Ken Pepple | Will Kelly |
| Greg Althaus | Dave Walker (Daviey) | Reynolds Chin | ziadsawalha |
| Ahmad Hassan | Rob Esker | Matt Stephenson | Akira YOSHIYAMA |
| Ivan Kolodyazhny | Mikyung Kang | Ante Karamatić | Mike Milner |
| Paul Voccio | Devdeep Singh | John Griffith | dcramer |
| Marcelo Martins | Evan Callicoat | Mark McClain | Liam Kelleher |
| Joshua McKenty | chris fattarsi | Nick Bartos | sateesh |
And thank you to Bitergia, the spin-off of LibreSoft research group that provides us tools and expertise to mine community data and Mark Collier and Jonathan Bryce for filling in the gap left by the semi-automatic association between people and companies.
Note: the data above was extracted from git logs of the repositories of projects officially included in Essex release. A lot more people contributed code in incubated projects and other projects related to OpenStack.
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