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Upgrades in cPanel & WHM Version 11.40 and Beyond

Discussion in 'cPanel Announcements' started by Infopro, Oct 10, 2013.

  1. Infopro

    Infopro cPanel Sr. Product Evangelist Staff Member

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    From over on the cPanel Blog:

    Upgrades in cPanel & WHM Version 11.40 and Beyond

    Understanding our upgrade process will help you keep your servers up-to-date with the level of stability that you need. In cPanel & WHM version 11.40, we have added a few new changes to how upgrades work, to help make the transition between major versions better for everyone.

    How do upgrades work?
    Before an upgrade takes place, compatibility checks are performed for the target version. If any blockers are found, the upgrade exits and leaves the system at the current version. If no blockers are found, the upgrade takes place. This process of checks followed by an upgrade happens once if you upgrade to the next major version immediately after your current version.

    When you upgrade across nonconsecutive major versions, the system must perform compatibility checks for, and upgrade to, each intermediate version. The process repeats until you reach the target version.

    What is a blocker?
    Before you begin a new installation or upgrade, each release performs version-specific compatibility checks, and there are also standard checks that apply to all versions. These compatibility checks are referred to as “blockers” because, when they identify an incompatibility, the system is “blocked” and cannot continue. Our Upgrade/Downgrade Blockers documentation contains an up-to-date list of each version’s blockers.

    How can I upgrade my server?
    To perform an upgrade manually, go to the Upgrade to Latest Version interface in WHM. This will update your system to the latest version on your chosen Release Tier.

    To configure automatic upgrades, go to the Update Preferences interface in WHM. You will be prompted to select a Release Tier, which will determine when your server upgrades to new major versions. You can also select Daily, Operating System Package, and SpamAssassin Rules Updates settings, which keep your server up-to-date within your current version of cPanel & WHM.

    Always make sure you are ready to upgrade beforehand, since downgrades are not supported in cPanel & WHM versions 11.34 and later.


    Read more: Upgrades in cPanel & WHM Version 11.40 and Beyond
     
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    #1 Infopro, Oct 10, 2013
  2. ThinIce

    ThinIce Well-Known Member

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    A query on this please, could you discuss the reasoning behind this randomised delay? Is it to reduce load on update servers or to give a staggared rollout in case of problems that didn't appear during test / in other tiers or for another reason?

    Are point upgrades i.e. 11.38.2.7 (which contained a roundcube security fix) still applied immediately?
     
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    #2 ThinIce, Oct 13, 2013
  3. cPanelKenneth

    cPanelKenneth cPanel Development Staff Member

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    Staggered roll out accomplishes the following:

    1. It reduces load on the update servers
    2. It reduces load on customer and technical support systems

    The staggered roll out is only used when a major version initially appears in a tier. For example right now 11.38 is available to the RELEASE and STABLE tiers. When 11.40 is initially pushed to the RELEASE tier, that event would be handled as a staggered roll out. Subsequent updates to 11.40 would not be performed as staggered roll outs for servers configured for the RELEASE tier.

    To state it another way, point upgrades are applied immediately.
     
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    #3 cPanelKenneth, Oct 15, 2013
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