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.
Vish presented first on OpenStack’s Compute history, talked about how devs could get their feet wet via 


































