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New in Veins 4.3

• The simple obstacle model now reads a full type-value mapping of attenuation values from an XML document (see the sample simulation for how to make efficient use of this option)
• Veins can now be configured to use different module types/names/displaystrings for different vehicle classes (for example, "a=X b=Y *=" means to use value "X" for vehicle class "a", value "Y" for vehicle class "b", and not to instantiate any other class)
• Veins now includes a very simple Nakagami-m fading model
• can now simulate cars without network cards
• requires SUMO 0.25.0 (which now ships with netedit, the graphical road network editor)

New in Veins 4 alpha 2

• fix compilation on Windows
• add option for custom WLAN-based MAC layers to force physical layer to transmit even on busy medium
• bugfix CCA threshold changing
• requires SUMO 0.22.0

New in Veins 4 alpha 1

• the annotations feature of Veins has been included into OMNeT++ 4.5; Veins now uses this feature if a suitable version of OMNeT++ is detected, speeding up simulations containing annotations by an order of magnitude
• allow changing the CCA threshold during simulations
• include Nist frame error rate model to allow arbitrary PHY configurations
• change TraCI API to follow a hierarchical structure (global commands, commands wrt. a single vehicle, commands wrt. a single lane, ...
• move all source files from, e.g., src/modules to src/veins/modules; use only a single include search path (the root of the project) instead of adding every single directory to include paths. Together, this should make Veins much easier to link with other module frameworks. Similar efforts have been started for the INET Framework.
• add TraCI commands to ease recording of screenshots and screencasts (from a series of screenshots, all taken at equal intervals wrt. simulation time).
• requires SUMO 0.22.0

More information is available at the Veins website at http://veins.car2x.org/