+ _ _____ _ ___
+__ _____ _ __ ___(_) ___ _ __ |___ / / |/ _ \
+\ \ / / _ \ '__/ __| |/ _ \| '_ \ |_ \ | | (_) |
+ \ V / __/ | \__ \ | (_) | | | | ___) || |\__, |
+ \_/ \___|_| |___/_|\___/|_| |_| |____(_)_| /_/
+ (not released yet)
+
+ _ _____ _ ___
+__ _____ _ __ ___(_) ___ _ __ |___ / / |( _ )
+\ \ / / _ \ '__/ __| |/ _ \| '_ \ |_ \ | |/ _ \
+ \ V / __/ | \__ \ | (_) | | | | ___) || | (_) |
+ \_/ \___|_| |___/_|\___/|_| |_| |____(_)_|\___/
+ December 24 2017
+
+The "Ho Ho Ho! SimGrid 4 beta is coming to town" release.
+ SimGrid 4 *may* be there by the next solstice.
+
+ * Convert almost all interesting MSG examples to S4U.
+ * New model: energy consumption due to the network.
+ * Major cleanups in the disk and storage subsystems.
+ * (+ further deprecate XBT, bug fixes and doc improvement)