[clamav-users] ClamAV 0.103 past end of life for signature updates

[Val Snyder (micasnyd)]

All,

Yesterday, Sep-30 2025, CDN rules were updated to enforce the end of life rules and block ClamAV 0.103 from signature updates.

As you may be aware from previous announcements, ClamAV 0.103 is now past end of life for signature database updates. Specifically:

  *
ClamAV 0.103 exceeded end of life for security patch support on Sep-14 2024.
  *
ClamAV 0.103 exceeded end of life for signature database updates as of Sep-14 2025.

May 2023: 0.103 EOL 1-year extension: https://blog.clamav.net/2023/05/end-of-life-eol-policy-change-0103-one.html
Aug 2024: 0.103 Security Fix EOL reminder: https://blog.clamav.net/2024/08/clamav-0103-lts-end-of-life-announcement.html
Mar 2025: 0.103 Database Update EOL reminder: https://blog.clamav.net/2025/03/advance-notice-end-of-life-for-clamav.html

If you are affected, you will have to upgrade to ClamAV 1.0 LTS or newer to continue to download signatures from database.clamav.net.
If your operating system does not support a newer version of ClamAV, you may need to upgrade your operating system version, use the ClamAV team install packages, or else build and install ClamAV from source.

ClamAV EOL Policy / Supported Versions matrix, for reference: https://docs.clamav.net/faq/faq-eol.html#version-support-matrix).

Respectfully,
Val

Valerie Snyder (she/they)
ClamAV Development
Talos
Cisco Systems, Inc.
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