+TRACE
+ - Change --cfg=tracing/msg/vm to --cfg=tracing/vm as virtual machine
+ behavior tracing is no longer limited to MSG
+
+ S4U:
+ - Introduced new function simgrid::s4u::Host::get_actor_count. This function
+ returns the number of actors running on a specific host.
+
+ Simix:
+ - Add parameter --cfg=simix/breakpoint to raise a SIGTRAP at given time.
+
+ SMPI:
+ - Replay: The replay file has been re-written in C++.
+ - Replay: Tags used for messages sent via MPI_Send / MPI_Recv are now
+ supported. They are stored in the trace and used when replayed.
+
+ XBT:
+ - Config: the C API is now deprecated (will be removed in 3.23), and
+ the C++ API has been slightly improved.
+
+ Fixed bugs:
+ - #143: Setting a breakpoint at a given time
+ - #258: daemonized actors hang after all non-daemonized actors have completed
+