Are you looking for information on the process for adopting an abandoned extension? See this [GitLab wiki page](https://lab.civicrm.org/extensions/extensions-directory/wikis/extension-maintainer-transfer-process).
Are you looking for information on the process handling abandoned extensions for CiviCRM?
The current process that the CiviCRM community use for handling abandoned or unmaintained extensions is [documented on GitLab](https://lab.civicrm.org/extensions/extensions-directory/wikis/extension-maintainer-transfer-process).
This document describes the process of publishing extensions within the CiviCRM ecosystem.