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Archived News

  • 29.05.2015 Version 2015.2 released (major code simplification (removed element groups), time stepping solvers updated for interactive use, improved finding of reference element coordinates of physical points, reorganized examples, reorganized installation on POSIX systems (sfepy-run script), etc.), see :ref:`release notes <2015.1-2015.2>`.
  • 26.02.2015 Version 2015.1 released (support for multiple fields in isogeometric analysis, redesigned handling of solver parameters, new modal analysis example, etc.), see :ref:`release notes <2014.4-2015.1>`.
  • 28.11.2014 Version 2014.4 released (preliminary support for 1D problems, data probes using pyVTK library, etc.), see :ref:`release notes <2014.3-2014.4>`.
  • 25.09.2014 Version 2014.3 released (isogeometric analysis (IGA) speed-up by C implementation of NURBS basis evaluation, generalized linear combination boundary conditions that work between different fields/variables and support non-homogeneous periodic conditions, non-constant essential boundary conditions given by a function in IGA, reorganized and improved documentation, etc.), see :ref:`release notes <2014.2-2014.3>`.
  • 23.05.2014 Version 2014.2 released (preliminary support for isogeometric analysis, improved postprocessing and visualization script for time-dependent problems with adaptive time steps, three new terms, etc.), see :ref:`release notes <2014.1-2014.2>`.
  • 25.02.2014 Version 2014.1 released (sfepy.fem was split to separate FEM-specific and general modules, lower memory usage by creating active DOF connectivities directly from field connectivities, new handling of field and variable shapes, clean up: many obsolete modules were removed, all module names follow naming conventions, etc.), see :ref:`release notes <2013.4-2014.1>`.
  • 22.11.2013 Version 2013.4 released (simplified quadrature definition, equation sequence solver, initial support for 'plate' integration/connectivity type, script for visualization of quadrature points and weights, etc.), see :ref:`release notes <2013.3-2013.4>`.
  • 18.09.2013 Version 2013.3 released (implementation of Mesh topology data structures in C, implementation of regions based on C Mesh, MultiProblem solver for conjugate solution of subproblems, new advanced examples (vibro-acoustics, Stokes flow with slip conditions), etc.), see :ref:`release notes <2013.2-2013.3>`.
  • 22.05.2013 Version 2013.2 released (automatic testing of term calls (many terms fixed w.r.t. corner cases), new elastic contact plane term + example, translated low level base functions from Cython to C for reusability, improved gallery http://docs.sfepy.org/gallery/gallery, etc.), see :ref:`release notes <2013.1-2013.2>`.
  • 27.02.2013 Version 2013.1 released (unified use of stationary and evolutionary solvers, new implicit adaptive time stepping solver, elements of set and nodes of set region selectors, simplified setting of variables data, etc.), see :ref:`release notes <2012.4-2013.1>`.
  • 21.11.2012 Version 2012.4 released (initial support for hierarchical basis on quadrilateral and brick elements, unified C/Cython structures for reference mappings, new linear combination boundary condition: edge direction, new examples showing some advanced features, etc.), see :ref:`release notes <2012.3-2012.4>`.
  • 12.09.2012 Version 2012.3 released (several new terms, material parameters can be defined per region using region names, base function values can be defined per element, support for global options, etc.), see :ref:`release notes <2012.2-2012.3>`.
  • 29.05.2012 Version 2012.2 released (reimplement acoustic band gaps code using the homogenization engine, high order quadrature rules, unify dot product and mass terms, lots of other term updates/fixes, update the PDE solver application, etc.), see :ref:`release notes <2012.1-2012.2>`.
  • 27.02.2012 Version 2012.1 released (initial version of linearizer of higher order solutions, rewrite variable and evaluate cache history handling, lots of term updates/fixes/simplifications, move web front page to sphinx docs, etc.), see :ref:`release notes <2011.4-2012.1>`.
  • 05.12.2011 Version 2011.4 released (cython used instead of swig to interface C code, many terms unified thanks to new optional material term argument type, updated Lagrangian formulation for large deformations, automatic generation of gallery of examples, etc.), see :ref:`release notes <2011.3-2011.4>`.
  • 10.08.2011 Version 2011.3 released (major update of terms aiming at easier usage and definition while retaining original C functions, overriding problem description items on command line, improved developer guide, Primer tutorial - a step-by-step walk-through of the process to solve a simple mechanics problem, etc.), see :ref:`release notes <2011.2-2011.3>`.
  • 31.05.2011 Version 2011.2 released (experimental implementation of terms aiming at easier usage and definition of new terms, Mooney-Rivlin membrane term, update build system to use exclusively setup.py, allow switching boundary conditions on/off depending on time, support for variable time step solvers, etc.), see :ref:`release notes <2011.1-2011.2>`.
  • 24.03.2011 Version 2011.1 released (discontinuous approximations, user-defined material nonlinearities, improved surface approximations, speed-up mesh reading, extensive clean-up - less code, many bugfixes and many more updates), see :ref:`release notes <2010.4-2011.1>`.
  • 06.12.2010 Version 2010.4 released (higher order elements, refactoring of geometries (reference mappings), transparent DOF vector synchronization with variables, interface variables defined on a surface region, many bugfixes and many more updates), see :ref:`release notes <2010.3-2010.4>`.
  • 06.08.2010 Version 2010.3 released (significantly rewritten code for better interactive use, cleaner and simpler high level interface, new examples, tests, simplified but more powerful homogenization engine, many bugfixes), see :ref:`release notes <2010.2-2010.3>`.
  • 10.05.2010 Version 2010.2 released (significantly updated documentation, new mesh readers, conversion formulas for elastic constants, basic tensor transformations, stress tensor conversion, new examples, tests, many new terms and bugfixes), see :ref:`release notes <2010.1-2010.2>`.
  • 01.03.2010 Version 2010.1 released (new sphinx-based documentation, refactoring of base functions (polynomial spaces) and element geometry description, interpolation between different meshes, terms for describing perfusion and active fibres in the total Lagrangian formulation (applicable, for example, to active muscle tissue models) new tests, many new terms and bugfixes), see :ref:`release notes <2009.4-2010.1>`.
  • 24.11.2009 Version 2009.4 released (greatly improved postprocessing and visualization capabilities, unified handling of user-defined functions, new tests, terms, many bugfixes), see :ref:`release notes <2009.3-2009.4>`.
  • 21.07.2009 Version 2009.3 released (_Windows installation_, updated postproc.py - visualization, new tests, terms, solvers, bugfixes), see :ref:`release notes <2009.2-2009.3>`.
  • 12.05.2009 Version 2009.2 released (new top level scripts (_isfepy_ - customized IPython shell, _postproc.py_ - mayavi2 based result viewer, _probe.py_), automatic html documentation generation via doxygen, new solvers, new mesh readers, extended syntax of equations for boundary traces of variables, short syntax for almost all input elements and other improvements), see :ref:`release notes <2009.1-2009.2>`.
  • 02.03.2009 Version 2009.1 released (new solvers, new mesh readers, unified homogenization framework, dispersion analysis, phase velocity computation for phononic materials and other improvements), see :ref:`release notes <2008.4-2009.1>`.
  • 04.12.2008 Version 2008.4 released (framework for running parametric studies, greatly improved support for time-dependent problems, live plotting using multiprocessing module, type of term arguments determined fully at run-time, new terms and other improvements), see :ref:`release notes <00.50.00-2008.4>`.
  • 02.09.2008 Version 00.50.00 released (finite strain elasticity: total Lagrangian (TL) formulation, solving problems in complex numbers, generalized equations to allow linear combination of terms, run-time type of state term arguments, refactoring to follow Python coding style guidelines and other improvements), see :ref:`release notes <00.46.02-00.50.00>`.
  • 01.07.2008 Version 00.46.02 released (alternative short syntax for specifying essential boundary conditions, variables and regions, manufactured solutions tests using !SymPy and other improvements), see :ref:`release notes <00.41.03-00.46.02>`.
  • 26.03.2008 Version 00.41.03 released (works on 64 bits, support for various mesh formats, new solvers and other improvements), see :ref:`release notes <00.35.01-00.41.03>`.