1.3.6rc3 and later

<p>
The <code>SQLPasswordCost</code> directive configures the high-level
<em>cost</em> settings to use for memory-hard algorithms like
<code>scrypt</code> and <code>argon2</code>.  The supported <em>cost</em>
cost values are:
<ul>
  <li>interactive
    <p>
    This <em>cost</em> uses parameters where generating the value is part of
    an "interactive" session.

    <p>
    For <code>scrypt</code>, depending on the version of <code>libsodium</code>
    used, this <em>cost</em> uses:
<pre