Version 1.5.1 is out. On this release:

• PI and log files now lay on user's home directory for GUI version

Version 1.5.0 is out. On this release:

• New splash screen with about and license windows
• License button removed
• Flattr button added
• Minor bugs fixed
• Aesthetic changes
• Terminal autoscroll

Version 1.4.2 is out. On this release:

• Systester now depends on QT >= 4.5.3
• Display available memory in Darwin
• Checksum validation re-implemented in order to bypass gcc bug

Version 1.4.0 is out. On this release:

• Update button introduced for latest version check.
• Updated systester.pro
• KDE and Gnome menu icon introduced (through install-desktop.sh script)
• FAQ.txt added in the source tree.

Version 1.3.0 is out. On this release:

• Bugfix in configure script. --prefix and "make install" now work properly.
• Bugfix: wrong checksum detection when gcc used in 32 bit platforms.
• Support for GNU PTH.
• Updated systester.pro
• qconf directory added in the source tree.
• Systester now reports the compiler and the flags used for GMP compilation.

System Stability Tester has a new and redesigned website.

Panagiotis Anastasiadis is now the new project administrator

Version 1.2.0 is out. On this release:

• Splash screen does not stall under unix ports anymore.
• Systester now remembers the font selected.
• Mingw32 port revived.
• Mingw64 port introduced.
• About screen now catches mouse clicks.
• Source code cleanup.

Version 1.1.2 is out. On this release:

• Systester now depends on GMP >= 4.2.1.
• Lite CLI introduced.
• Minor bugfix over the HPUX port.
• Dynamic report of GMP version.
• New configure script.

Version 1.1.1 is out. On this release:

• Systester now can link against MPIR.
• Source code clean up.
• Minor bug fixes.

Since its last release, 15 months ago, Systester found significant acceptance. Now it's part of Phoronix Test Suite, SystemRescueCD and Parted Magic.

Version 1.1.0 is out. On this release:

• Command line interface revived.
• Mode button introduced.
• Two minor memory leaks fixed.
• Extended source code clean up and changes.
• Display the total installed physical memory, visible by the OS.
• Support for Solaris 10/Sparc.
• Support for AIX 5.3/Power.

Version 1.0.3 is out. On this release:

• Configure script minor changes.

Version 1.0.2 is out. On this release:

• Just a bugfix over the recent Mac OS X port.

Version 1.0.1 is out. On this release:

• Support for Mac OS X (Darwin i386).
• Minor bug fixing.

Version 1.0.0. System Stability Tester reached its milestone. On this release:

• Support for win64 platform.
• Support for x86 and x64 Microsoft Visual C++.
• Gauss-Legendre algorithm implemented.
• ILP width report dropped.
• Display the mode the program runs (32 or 64 bit).
• Minor changes to the GUI.

Version 0.9.2 is out. On this release:

• Checksum validation added for both little and big endian machines.
• Logfile now reports the checksum validation results for every turn.
• Bugfix: CPUPI.DAT now contains the all the computed digits of pi.
• Elapsed time with millisecond accuracy.
• More accurate CPU frequency detection.
• Bugfix: The elapsed time of the last loop is now correct.
• Source code clean-up.

Version 0.9.1 is out. On this release:

• No new features added or bugs fixed. Dependency on pthreads-win32 removed. Using native Windows threads instead.

Version 0.9.0 is out. On this release:

• Transition from Qt3 to Qt4.
• Stop button added.
• Configure script now checks for Qt 4 build environment.
• Minor bugs fixed.
• Minor cosmetic changes.

Version 0.8.1 is out. On this release:

• No new features added or bugs fixed.
• Preparation for multi algorithm support.
• Source code clean-up.

Version 0.8.0 is out. On this release:

• Minor bugs fixed.
• Minor cosmetic changes.
• Icon changed.
• A splash screen introduced.
• Support for HPUX 11.x pa32.
• Display the GMP version.
• Display the ILP width.

Version 0.7.3 is out. On this release:

• A serious memory leak fixed.
• Configure script now checks for GMP>=3.1 and QT>=3.3.
• Makefile now can use the PREFIX environment variable to install the binary.
• The number of active cpus/cores is reported.
• Support for x86 Solaris 10.

System Stability Tester has now this web page hosted by sourceforge.net.

Version 0.7.2 is out. On this release:

• Pi calculation itself became multi threaded.
• Single thread Pi calculation added. Usefull for benchmarking purposes only.
• Configure script for Unix systems.

Version 0.7.1 is out. On this release:

• New icon.
• New more accurate and faster CPU frequency detection function under unix platforms.
• Support for Linux/Alpha and Tru64 unix.
• Updated about information.
• Buttons disabled during Pi calculations.