Schleuder 4.0.0 released

From: team at
Date: Thu Mar 4 14:58:42 CET 2021

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Schleuder 4.0.0 has been released.

This release brings one new feature, some bug fixes, and several
dependency changes.

Please note that this release does not contain the breaking changes to
the HTTP API which were planned for it originally.


* Mandatory blank line to separate keywords from email content.
  Arguments for keywords are now looked for in the following lines, too,
  until a blank line (or the next keyword) is found.
* Update ActiveRecord to version 6.1.
* Require Ruby version >= 2.5.
* Support Ruby 3.0.
* Require GnuPG version >= 2.2.
* Drop the deprecated `X-LISTNAME`. Please only use `X-LIST-NAME` from
  now on.
* Downcase all email addresses when subscribing.
* Require fingerprints as arguments to `X-DELETE-KEY`, no fuzzy matching
  of strings anymore.

For details please see the changelog:

Downloadable files are linked in the README:
Updated packages for CentOS and Debian will be provided soon.

In case of problems, questions or feedback, please use the issue-tracker
<> or send us an email to
<team at>.

Best wishes,
schleuder dev team
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