APBS 1.5 CHANGELOG These are notes for APBS version 1.5 Binary releases may be found on GitHub and on SourceForge. New Features Poisson-Boltzmann Analytical Method (PBAM, see Lotan & Head-Gordon) and Semi-Analytical Method (PBSAM, see Yap & Head-Gordon) integrated with APBS. PBSAM is currently only available in the Linux and OS X distributions. Examples are located with the APBS examples in the pbam/ and pbsam/ directories. More information and documentation may be found in the PBAM and PBSAM sections of the APBS-PDB2PQR website. Tree-Code Accelerated Boundary Integral Poisson-Boltzmann Method (TABI-PB) integrated with APBS.(See Geng & Krasny) Examples are located with the APBS examples in the bem/, bem-pKa/, and bem-binding-energies/ folders Included NanoShaper alternative to MSMS. More information and documentation may be found in the Contributions section of the APBS-PDB2PQR website Added binary DX format support to the appropriate APBS tools. Test suite amended and expanded. Removed hard-coded limitation to number of grid points used to determine surface accessibility. Known Bugs / Limitations PBSAM not building in windows due to C standard restrictions in the Microsoft compiler implementation. Bug Fixes Build an iAPBS build bug. Fixed miscellaneous Windows build issues. OS X bundle problem on El Capitan. Notes The following are included in APBS as Git submodules: Geometric Flow (link) FETk (link) PBAM/PBSAM (link) TABI-PB (link) To build on Windows from source, the root CMakeLists.txt file needs to be modified by un-commenting out the lines after "#if building on Windows" and commenting out the corresponding lines above.