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CA Common Services for z/OS is packaged together with a CA solution. The CA solution that uses the various services includes requirements for specific versions and levels of CA Common Services for z/OS. In all cases, you should consult the CA solution documentation for specific component usage details and installation recommendations.
As new features are incorporated into CA solutions, CA Common Services for z/OS is reissued to include the new functionality. If you already have some CA Common Services for z/OS components installed, you only need to install any additional services or features required by the CA product. You may reinstall a new genlevel of CA Common Services for z/OS at any time to take advantage of new features or higher service levels.
CA Common Services for z/OS maintenance updates containing service upgrades, problem resolutions, or both will also be distributed to all users with current maintenance agreements. This maintenance update, typically shipped four times yearly, allows you to keep your components up to date and to avoid encountering known problems. Clients are encouraged to apply the preventive maintenance service in a timely fashion in order to help maintain a trouble free, stable environment. Documentation updates are also performed regularly and provided automatically to current users.
At times, a product may issue both a CA Common Services for z/OS genlevel upgrade and a CA Common Services for z/OS maintenance update, in which case you may need to install new features from the distribution update as well as apply maintenance from the maintenance update. Again, we urge you to consult the product specific documentation for product specific requirements.
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