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Ergo version 3.5 release notes, 2016-07-19
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The following changes were made compared to the previous version:

- New parameterless stopping criterion for purification
  (see http://arxiv.org/abs/1507.02087).

- Accelerated purification method implemented
  (see http://dx.doi.org/10.1021/ct2001705).

- New HOMO/LUMO eigenvalue estimates implemented
  (see http://dx.doi.org/10.1137/130911585).

- Improved method for computation of HOMO and LUMO orbitals.

- The test suite is now parallel-make safe, so e.g. "make check j4"
  now works.

- Bugfixes and code cleanup.