CentOS 6.8 Release Notes

Last updated: July 28, 2016

1. Translations

Translations of these release notes are available for the following languages :

2. Introduction

Welcome to the CentOS 6.8 release. CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by Red Hat1.

CentOS conforms fully with Red Hat's redistribution policy and aims to be functionally compatible. CentOS mainly changes packages to remove upstream vendor branding and artwork.

Similar to the practice of the upstream vendor, there is no supported path to 'upgrade' an installation of a prior major CentOS release (CentOS 5) to a new major release. This is not a CentOS imposed limitation, but rather reflects the upstream's approach on this matter. People who feel adventuresome and want to experiment are reminded to take and test backups first. As a note to people who attempt the upgrade in spite of this warning, such as by the unsupported upgradeany option from the media install command line, please note that you will need to manually retrieve the current centos-release package, manually do a rpm -e --nodeps removal of the prior centos-release package, and then manually install the CentOS 6 centos-release package, before yum can have any chance of working properly.

The Continuous Release (CR) repository makes generally available packages that will appear in the next point release of CentOS, on a testing and hotfix basis until formally released.

Please read through the other sections before trying an install or reporting an issue.

NOTE: There is NO mechanism to pick only partial upgrades of packages to CentOS-6.8. All packages and updates to the 6.8 tree are built against the 6.8 tree and may not work correctly with older 6.x packages. If you want some packages in 6.8, please upgrade all packages. You will have issues if you perform only partial updates.

3. Install Media and sha256sum

sha256sum x86_64:
1dda55622614a8b43b448a72f87d6cb7f79de1eff49ee8c5881a7d9db28d4e35  CentOS-6.8-x86_64-bin-DVD1.iso
0aba869427b4ce04e100d72744daf7fea1f7be2e4be56b658095bd9e99e04e6d  CentOS-6.8-x86_64-bin-DVD2.iso
efa82d673206cb6af377b1f929a510cc2b1ce95cdb436210121ec271e056c920  CentOS-6.8-x86_64-LiveCD.iso
52a9c8c1d250de39976dda9412293473b8349efefb31b66fecdee0fdf93866d9  CentOS-6.8-x86_64-LiveDVD.iso
ec49c297d484b9da0787e5944edc38f7c70f21c0f6a60178d8e9a8926d1949f4  CentOS-6.8-x86_64-minimal.iso
56d9cc5757ed1443af7b321967622a108978328f72e58050d31bcf1998dfd162  CentOS-6.8-x86_64-netinstall.iso

sha256sum i386:
720d185fdf063383a4471657076b72fc162d3c3c3bca2e5e5ae13a25b3046519  CentOS-6.8-i386-bin-DVD1.iso
0c1a498a469214f276b4390a9ac2111fe8eb89084f7921d2eced659ada09e1a9  CentOS-6.8-i386-bin-DVD2.iso
7df6c27c0cd1186845bee4e786d43dbd3ae429258098283f9dbc2b2d20ed6a89  CentOS-6.8-i386-LiveCD.iso
7e2ace104901921ac919a390be827251727dfd04437fbd4e4d3024b6d70d8718  CentOS-6.8-i386-LiveDVD.iso
f4cf0614cc2ac451ffec5bd349ee74a1b31fd394e58561a07c38a21be5a4bdeb  CentOS-6.8-i386-minimal.iso
1668434d76e14a45a189b7810582e7e6ded686854f75b7f8ba053830a5706e57  CentOS-6.8-i386-netinstall.iso

4. Major changes

5. Deprecated Features

The following device drivers have been deprecated, they may be removed in future releases and will not receive updates:

The following controllers from the megaraid_sas driver have been deprecated:

The following controllers from the be2iscsi driver have been deprecated:

NOTE: Deprecated drivers SHOULD still function in CentOS 6 until EOL, they will likely not be supported in future versions of CentOS (ie, CentOS 7)

The following packages have been deprecated and may be removed in future releases of CentOS 6. They will no longer receive updates:

The following items have seen some or all items removed from the upstream source code:

Please see the Red Hat Technical Notes for more details concerning deprecated and removed functionality.

6. Known Issues

7. Packages and Applications

7.1. Packages modified by CentOS

7.2. Packages removed from CentOS that are included upstream

7.3. Packages added by CentOS that are not included upstream

8. Sources

All CentOS sources are now hosted at vault.centos.org:

9. How to help and get help

As a CentOS user there are various ways you can help out with the CentOS community. Take a look at our Contribute page for further information on how to get involved.

9.1. Special Interest Groups

CentOS consists of different Special Interest Groups (SIGs) that bring together people with similar interests. The following SIGs already exist:

And we encourage people to join any of these SIGs or start up a new SIG, e.g.

9.2. Mailinglists and Fora

Another way you can help others in the community is by actively helping and resolving problems that users come up against in the mailing lists and the fora.

9.3. Wiki and Website

Even as an inexperienced CentOS user we can use your help. Because we like to know what problems you encountered, if you had problems finding specific information, how you would improve documentation so it becomes more accessible. This kind of feedback is as valuable to others as it would have been to you so your involvement is required to make CentOS better.

So if you want to help out and improve our documentation and Wiki, register on the Wiki or subscribe to the centos-docs mailing list.

10. Further Reading

The following websites contain large amounts of information to help people with their CentOS systems :

11. Thanks

We thank everyone involved for helping us produce this product and would like to specifically acknowledge the extra effort made by the QA Team. Without them working almost 24/7 we couldn't have released this as fast as we did.

Copyright (C) 2016 The CentOS Project

Manuals/ReleaseNotes/CentOS6.8 (last edited 2016-07-28 15:09:10 by AlanBartlett)