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A newer version of this software is available, which includes functional and security updates. Customers should click here to update to the latest version.

Users should upgrade to the latest version of the Quartus Prime Design Software. The selected version does not include the latest functional and security updates. If you must use this version of software, follow the technical recommendations to help improve security. For critical support requests, please contact our support team.

The Quartus Prime Standard Edition Design Software, Version 18.1 is subject to removal from the web when support for all devices in this release are available in a newer version, or all devices supported by this version are obsolete. If you would like to receive customer notifications by e-mail, please subscribe to our subscribe to our customer notification mailing list.

Critical Issues and Patches for the Quartus Prime Standard Edition Software, Version 18.1.
Knowledge Base: Search for Errata. Also see Critical Issues and Patches.
Problems and Answers on specific IP or Products.
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