istitem">
          <span class="bold"><strong>Breaking change</strong></span>: moved a number of non-core
          headers that are predominantly used for internal maintenance into <code class="computeroutput"><span class="identifier">libs</span><span class="special">/</span><span class="identifier">math</span><span class="special">/</span><span class="identifier">include_private</span></code>. The headers effected
          are <code class="computeroutput"><span class="identifier">boost</span><span class