Red Hat Enterprise Linux 7
| Release/Update | General Availability Date | redhat-release Errata Date* | Kernel Version |
| RHEL 7 Update 2 | TBA | TBA | TBA |
| RHEL 7 Update 1 | 2015-03-05 | 2015-03-05 RHEA-2015:0524 | 3.10.0-229 |
| RHEL 7 GA | 2014-06-09 | - | 3.10.0-123 |
| RHEL 7 RC | 2014-04-23 | - | 3.10.0-121 |
| RHEL 7 Beta | 2013-12-11 | - | 3.10.0-54.0.1 |
Codename: Maipo (based on a mix of Fedora 19, Fedora 20, and several modifications)
Red Hat Enterprise Linux 6
| Release/Update | General Availability Date | redhat-release Errata Date* | Kernel Version |
| RHEL 6 Update 7 | TBA | TBA | TBA |
| RHEL 6 Update 6 | 2014-10-14 | 2014-10-13 RHEA-2014:1608 | 2.6.32-504 |
| RHEL 6 Update 5 | 2013-11-21 | 2013-11-20 RHSA-2013:1645-2 | 2.6.32-431 |
| RHEL 6 Update 4 | 2013-02-21 | 2013-02-21 RHSA-2013-0496 | 2.6.32-358 |
| RHEL 6 Update 3 | 2012-06-20 | 2012-06-19 RHSA-2012-0862 | 2.6.32-279 |
| RHEL 6 Update 2 | 2011-12-06 | 2011-12-06 RHEA-2011:1743 | 2.6.32-220 |
| RHEL 6 Update 1 | 2011-05-19 | 2011-05-19 RHEA-2011:0540 | 2.6.32-131.0.15 |
| RHEL 6 GA | 2010-11-09 | - | 2.6.32-71 |
Codename: Santiago (based on a mix of Fedora 12, Fedora 13, and several modifications)
Red Hat Enterprise Linux 5
| Release/Update | General Availability Date | redhat-release Errata Date* | Kernel Version |
| RHEL 5 Update 11 | 2014-09-16 | 2014-09-16 RHEA-2014-1238 | 2.6.18-398 |
| RHEL 5 Update 10 | 2013-10-01 | 2013-09-30 RHEA-2013-1311 | 2.6.18-371 |
| RHEL 5 Update 9 | 2013-01-07 | 2013-01-07 RHEA-2013-0021 | 2.6.18-348 |
| RHEL 5 Update 8 | 2012-02-20 | 2012-02-20 RHEA-2012:0315 | 2.6.18-308 |
| RHEL 5 Update 7 | 2011-07-21 | 2011-07-20 RHEA-2011:0977 | 2.6.18-274 |
| RHEL 5 Update 6 | 2011-01-13 | 2011-01-12 RHEA-2011:0020 | 2.6.18-238 |
| RHEL 5 Update 5 | 2010-03-30 | 2010-03-30 RHEA-2010:0207 | 2.6.18-194 |
| RHEL 5 Update 4 | 2009-09-02 | 2009-09-02 RHEA-2009:1400 | 2.6.18-164 |
| RHEL 5 Update 3 | 2009-01-20 | 2009-01-20 RHEA-2009:0133 | 2.6.18-128 |
| RHEL 5 Update 2 | 2008-05-21 | 2008-05-20 RHEA-2008:0436 | 2.6.18-92 |
| RHEL 5 Update 1 | 2007-11-07 | 2007-11-07 RHEA-2007:0854 | 2.6.18-53 |
| RHEL 5 GA | 2007-03-15 | - | 2.6.18-8 |
Codename: Tikanga (based on Fedora Core 6)
Red Hat Enterprise Linux 4
| Release/Update | General Availability Date | redhat-release Errata Date* | Kernel Version |
| RHEL 4 Update 9 | 2011-02-16 | 2011-02-16 RHEA-2011:0251 | 2.6.9-100 |
| RHEL 4 Update 8 | 2009-05-19 | 2009-05-18 RHEA-2009:1002 | 2.6.9-89 |
| RHEL 4 Update 7 | 2008-07-29 | 2008-07-24 RHEA-2008:0769 | 2.6.9-78 |
| RHEL 4 Update 6 | 2007-11-15 | 2007-11-15 RHBA-2007:0897 | 2.6.9-67 |
| RHEL 4 Update 5 | 2007-05-01 | 2007-04-27 RHBA-2007:0196 | 2.6.9-55 |
| RHEL 4 Update 4 | 2006-08-10 | 2006-08-10 RHBA-2006:0601 | 2.6.9-42 |
| RHEL 4 Update 3 | 2006-03-12 | 2006-03-07 RHBA-2006:0149 | 2.6.9-34 |
| RHEL 4 Update 2 | 2005-10-05 | 2005-10-05 RHEA-2005:786 | 2.6.9-22 |
| RHEL 4 Update 1 | 2005-06-08 | 2005-06-08 RHEA-2005:318 | 2.6.9-11 |
| RHEL 4 GA | 2005-02-15 | - | 2.6.9-5 |
Codename: Nahant (based on Fedora Core 3)
Red Hat Enterprise Linux 3
| Release/Update | General Availability Date | Kernel Version |
| RHEL 3 Update 9 | 2007-06-20 | 2.4.21-50 |
| RHEL 3 Update 8 | 2006-07-20 | 2.4.21-47 |
| RHEL 3 Update 7 | 2006-03-17 | 2.4.21-40 |
| RHEL 3 Update 6 | 2005-09-28 | 2.4.21-37 |
| RHEL 3 Update 5 | 2005-05-18 | 2.4.21-32 |
| RHEL 3 Update 4 | 2004-12-12 | 2.4.21-27 |
| RHEL 3 Update 3 | 2004-09-03 | 2.4.21-20 |
| RHEL 3 Update 2 | 2004-05-12 | 2.4.21-15 |
| RHEL 3 Update 1 | 2004-01-16 | 2.4.21-9 |
| RHEL 3 GA | 2003-10-22 | 2.4.21-4 |
Codename: Taroon (based on Red Hat Linux 9)
Red Hat Enterprise Linux 2.1
| Release/Update | General Availability Date | Kernel Version |
| RHEL 2.1 Update 7 | 2005-04-28 | - |
| RHEL 2.1 Update 6 | 2004-12-13 | 2.4.9-e.57 |
| RHEL 2.1 Update 5 | 2004-08-18 | 2.4.9-e.49 |
| RHEL 2.1 Update 4 | 2004-04-21 | 2.4.9-e.40 |
| RHEL 2.1 Update 3 | 2004-12-19 | 2.4.9-e.34 |
| RHEL 2.1 Update 2 | 2003-03-29 | 2.4.9-e.24 |
| RHEL 2.1 Update 1 | 2003-02-14 | 2.4.9-e.12 |
| RHEL 2.1 GA | 2002-03-23 | 2.4.9-e.3 |
Codename: Pensacola (AS) / Panama (ES) (based on Red Hat Linux 7.2)
* Helpful when cloning channels in Satellite for a minor version plus all errata prior to the next minor release using spacewalk-clone-by-date or the webUI.
具体详细信息可以参考官方网址https://access.redhat.com/articles/3078
Red Hat Enterprise Linux 各个版本以及发布日期
原文：http://www.cnblogs.com/kerrycode/p/4338523.html