+As usual on that front, some functions were deprecated and will be removed in 4 versions, while some old deprecated functions
+were removed in this version.
+
+**On the model checking front**, we are almost done with the ongoing refactoring to ensure that the model-checker don't read
+directly the memory of the application beside checkpoint/restore and state equality. Instead, the network protocol is used to
+retrieve the information, which makes the code much easier to read and understand. We fixed a bug in the DPOR reduction which
+resulted in some failures to be missed by the exploration. We started implementing the UDPOR (Unfoldings DPOR) reduction
+algorithm, and it will certainly be part of the next release.
+
+We also extended the sthread module, which allows to intercept simple code that use pthread mutex and semaphores to simulate and
+verify it. You do not even need to recompile your code, as it uses LD_PRELOAD to intercept on the target functions. This module
+is still rather young, but it could already reveal useful to verify the code written by students in a class on UNIX IPC and
+synchronization. Check `the examples <https://framagit.org/simgrid/simgrid/tree/master/examples/sthread>`_.
+