According to https://civicrm.org/blog/dev-team/civicrm-5650-5644-5634-esr-security-release, a security release was published on 6 Sep 2023 including v5.63.4 but v5.63.4 is not listed at https://download.civicrm.org/release or https://github.com/civicrm/civicrm-wordpress/tags

1 Answer 1


5.63 is the Extended-Security-Release version, which is a subscription service. You can sign up for the ESR service & download that version for a small fee. Read more about it here: https://civicrm.org/blog/kbeireis/esr-long-term-solution

If you do not wish to sign up for extended security releases, you can download the latest version of CiviCRM for free, which contains all security updates.

  • Thanks @Coleman Got it. Took me a while to get my head around the deeply unconventional CiviCRM release cycle, version numbers and support duration being accustomed to the likes of Ubuntu's LTS and Firefox's ESR. No complaint. It is as it is. Just excusing my lack of understanding.
    – catkin
    Oct 25, 2023 at 10:34
  • You're welcome.
    – Coleman
    Oct 25, 2023 at 14:04

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