deal.II version 8.3.0

The major changes of this release are:

• Improved handling of parallel distributed meshes, including a better
  numbering of cells on coarse meshes based on a hierarchical concept instead
  of Cuthill-McKee numbering.
• New abstract C++11 interface to linear operators.
• All examples have been changed to use the new DynamicSparsityPattern.
• Improved support for periodic boundary conditions with arbitrary
  orientations.
• New quadrature formulas.
• Full conversion to the new manifold mechanism (manifold_id) for boundary
  descriptions.
• Better support for complex-valued problems by doing internal arithmetic in
  the correct data types, rather than defaulting to double precision.
• An implementation of Bernstein polynomial-based finite elements.
• Interface to the new algebraic multilevel package MueLu of the Trilinos
  project.
• More descriptive exception messages in many places for improved user
  productivity in code development.
• More than 140 other features and bugfixes.

For more information see

• the preprint at https://www.dealii.org/deal83-preprint.pdf
• the list of changes at
  https://www.dealii.org/8.3.0/doxygen/deal.II/changes_between_8_2_1_and_8_3.html

deal.II version 8.2.1

This is a minor release that fixes an issue with CMake 3.1. Otherwise it is identical with version 8.2.0.

A full list of changes can be found at
http://www.dealii.org/developer/doxygen/deal.II/changes_between_8_2_0_and_8_2_1.html

deal.II version 8.2.0

This version has a significant number of noteworthy new features:

• Comprehensive support for geometries described by arbitrary manifolds
  and meshes that respect this description not only on the boundary but
  also internally
• Support for geometries imported from CAD using the OpenCASCADE library
• Three new tutorial programs on complex geometries, CAD geometries, and
  time stepping methods
• Support for users wanting to use C++11 features
• Improvements to multithreading support
• Vectorization of many vector operations using OpenMP SIMD directives
• At least 140 features and bugfixes

A full list of changes can be found at
http://www.dealii.org/developer/doxygen/deal.II/changes_between_8_1_and_8_2.html

deal.II version 8.1.0

A full list of changes can be found at
http://www.dealii.org/developer/doxygen/deal.II/changes_between_8_0_and_8_1.html

deal.II version 8.0.0

A full list of changes can be found at
http://www.dealii.org/developer/doxygen/deal.II/changes_between_7_3_and_8_0.html