------------------ Released version 2.3.1 ----------------------------

 * Build system improvements:
    - Fixed build issue with GCC 6.1.
    - Fixed build issue on the Intel Xeon Phi platform.


------------------- Released version 2.3 -----------------------------

 * Support for
    - Score-P v2.0
    - OTF2 v2.0

 * Automatic trace analyzer changes & improvements:
    - Experimental support for Score-P traces collected using
      sampling (see OPEN_ISSUES for limitations).

 * Improved analysis report postprocessing:
    - Revised metric hierarchies (organization, metric naming, etc).
    - Suppress calculation of performance properties that are
      only relevant for unused parallel programming models.

 * Performance property documentation fixes & improvements.

 * Build system improvements.

 * Code refactoring and various bug fixes.


------------------- Released version 2.2.2 ---------------------------

 * Platform support:
    - Fixed a build issue on the Intel Xeon Phi platform.
    - Improved support for the 'ibrun' launcher.

 * Automatic trace analyzer changes & improvements:
    - Worked around rare run-time issue with MVAPICH2.


------------------- Released version 2.2.1 ---------------------------

 * Platform support:
    - Added build system support for Power8/Linux.
    - Added build system support for 64-bit ARM/Linux (AArch64).
    - Prefer linking static over dynamic Cube/OTF2 libraries on
      Fujitsu K/FX10/FX100.

 * Automatic trace analyzer changes & improvements:
    - Fixed delay-cost propagation through OpenMP barrier wait states.
    - Various algorithmic optimizations reducing overall analysis
      time for traces of multi-threaded applications:
       ~ Improved memory management.
       ~ Improved trace preprocessing.
       ~ Improved timestamp correction.

 * Code refactoring and various bug fixes.


------------------- Released version 2.2 -----------------------------

 * Support for
    - Score-P v1.4
    - OTF2 v1.5, incl. full SIONlib support (if configured)
    - Cube v4.3

 * Platform support:
    - Added support for Intel Xeon Phi, native mode only.
    - Added support for Fujitsu FX100 (thanks to T. Nakamura,
      Fujitsu Ltd).

 * Automatic trace analyzer changes & improvements:
    - Added basic support for POSIX threads.
    - Added basic support for OpenMP tasking.
    - Added lock contention analysis (OpenMP & POSIX threads).
    - Added root-cause/delay analysis (MPI & OpenMP).
    - New command-line options '--[no-]rootcause'.

 * Code refactoring and various bug fixes.


------------------- Released version 2.1 -----------------------------

 * Support for
    - Score-P v1.3
    - OTF2 v1.4

 * Platform support:
    - Added support for Fujitsu FX10 & K computer.
    - Improved support for Cray systems.

 * Automatic trace analyzer changes & improvements:
    - Added Critical-path analysis.
    - Improved Late Receiver detection.
    - New command-line options '--[no-]critical-path' and '--single-pass'.
    - Fixed crash in data collation when number of OpenMP threads varied
      among MPI processes.

 * Code refactoring and various small bug fixes.

 * Initial version of updated User Guide (still work in progress).


------------------- Released version 2.0 -----------------------------

 * Support for
    - Score-P v1.2
    - OTF2 v1.2
    - Cube v4.2

 * New build system based on GNU autotools.

 * Significant amount of code refactoring.

 * Automatic trace analyzer changes & improvements:
    - Support for arbitrary deep system trees.
    - Improved performance of timestamp correction.
    - Pattern instance tracking and statistics are now enabled by
      default.
    - New command-line options '--verbose', '--[no-]time-correct',
      and '--[no-]statistics'.
    - Limited backward-compatibility support for handling existing
      traces in EPILOG format generated by Scalasca v1.
