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Dear Gromacs community,<br>
<br>
A new maintenance release of Gromacs is available for download at
<a class="moz-txt-link-freetext" href="ftp://ftp.gromacs.org/pub/gromacs/gromacs-4.5.5.tar.gz">ftp://ftp.gromacs.org/pub/gromacs/gromacs-4.5.5.tar.gz</a>.<br>
<br>
Some notable updates in this release:<br>
<ul>
<li>Improved pdb2gmx -chainsep option and reintroduced the -merge
option.</li>
<li>Fixed mdrun file appending truncating files to 0 bytes when
continuation runs stopped before writing new output.</li>
<li>Fixed COM pulling with multiple constraints checking the
convergence of one constraint instead of all.</li>
<li>Fixed some dihedrals in sugars in Gromos53a5/6 working on the
wrong atoms.</li>
<li>AmberGS force field is now based on Amber94 instead of
Amber96.</li>
<li>Moved hydrogens in Charmm27 protein termini to separate charge
groups and added ACE and CT3 residue types.</li>
<li>Many small fixes which avoid termination with fatal errors or
crashes in mdrun and tools.</li>
<li>Many small updates to the manual pages of programs.</li>
</ul>
<br>
Big thanks to all developers and users!<br>
<br>
Happy simulating!<br>
Rossen<br>
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