imestepping Solvers):</h4>
      <h4>SNES (Nonlinear Solvers):</h4>
      <h4>SLES (Linear Solvers):</h4>
      <h4>KSP (Krylov Subspace Methods):</h4>

      <ul>
        <li>
          Added support for &quot;diagonal scaling&quot; of preconditioned
          system as required by most ODE integrators via
          PCDiagonalScaleSet().
        </li>
      </ul>

      <h4>PC (Preconditioners):</h4>
      <h4>MAT (Matrices):</h4>

      <ul>
        <li>
          Added the Henry Tufo/Paul Fischer libtfs 