GXSM which is a powerful interface for various kinds of scanning probe microscopy and a multi-channel image and vector-probe data acquisition and visualisation system designed for SPM techniques (STM,AFM..), but also SPA-LEED. The plug-in interface allows easy customization for extra math and specific hardware and instrument support. A monthly cvs-snapshot January 2010 (.deb package format and CVS source) of GXSM has been released. In this release;

Sage is an open source mathematics computing environment (MCE) which covers many aspects of mathematics, e.g. algebra, calculus, elementary to very advanced number theory, cryptography, numerical computation, group theory and so on. Sage 4.3.1 has been released. In this version a total of 634 functions were added since version 4.3 increaseing doctest coverage by 0.5%, then the total number of functions is now at 23763 (overall weighted coverage score: 80.8%). Some changes in this release are:

• Upgrade ratpoints to 2.1.3;
• Fixed a memory leak when performing the calculation CDF(I)^2;
• Update jsMath-image-fonts install path detection;
• Increase default ecl memory limits for maxima+ecl in sage.

Sage 4.3.1 closed 193 tickets, all of which are available here for your reading pleasure.

SPICE OPUS is a circuit simulator with optimisation utilities. It is a recompilation of the original Berkeley's SPICE for GNU/Linux operating system too. Georgia Tech Research Institute's XSPICE mixed-mode simulator was added to the Berkeley code. The simulator includes an interactive interpreted programming language called Nutmeg, which allows interactive SPICE sessions (in a similar way to ngnutmeg for NGSpice). In this new version of SPICE OPUS;

• Bug fixed in BSIM3SOI version 1.3 (level = 55) MOSFET model.

AVR32 is a fairly new 32bit microcontroller core developed by Atmel. Design goals were high integration, low power consumption and a modern 32bit instruction set. Fortunately, Atmel decided to implement an AVR32 backend for the GCC compiler collection and to base the AVR32Studio IDE on Eclipse. AVR32 Studio is a free Integrated Development Environment (IDE) for AVR32 that enables you to write, build, deploy and debug your C/C++ and assembler code so that high-quality development software is for free for Linux. A new version of AVR32 Studio has been released. This version includes a large number of bug fixes, enhancements and other improvements has been made available, e.g.:

The EAGLE Layout Editor is an easy to use, yet powerful tool for designing printed circuit boards (PCBs). The name EAGLE is an acronym, which stands for Easily Applicable Graphical Layout Editor. The program consists of three main modules; Layout Editor, Schematic Editor and Autorouter which are embedded in a single user interface, therefore there is no need for converting netlists between schematics and layouts. In this new version of EAGLE;

• The View/Refresh option in the Control Panel's pulldown menu now has the platform specific hotkey and the default action when double clicking, pressing Space or Enter on a project directory in the Control Panel's tree view is now to open/close the project;
• Various changes/improvements on the commands Add, Auto, Board, Cut, Display, Delete, Group, Label, Mark, Name, Optimize, Pad, Pin, Print, Ratsnest, Route, Set, Show, Smd, Update, Use, Value and Via;
• Added CAM Processor driver GERBER_RS274X_25 with 2.5 inch coordinate format;
• Fixed handling empty keys;
• ...and many many others!

Here a complete list of changes.

Qfsm is a graphical tool for designing finite state machine; it is written in C++ using the Qt library. Finite state machines are models to describe complex objects or systems in terms of the states they may be in. This release of Qfsm includes some new features, bug fixes and improvements:

• Implemented initial version of SCXML export (for 'free text' machines);
• Implemented export of vvvv Automata code (for 'free text' machines);
• Implemented VHDL test bench export;
• Overhauled documentation;
• Russian translation;
• Improvments in VHDL export;
• Bug fixes.