* aGrUM
* (internals) Updating `act --stats`.
* (internals) Reorganizing build folder : `build/{aGrUM|pyAgrum}/{debug|release}`.
* (internals) Improving cmake & CIs.
* Threadsafe graphs and Graphical Models.
* Adding new graph `gum::PDAG` (Partially Directed Acyclic Graph).
* Renaming `gum::MixedGraph::adjacents` with correct graph notion : `gum::MixedGraph::boundary`.
* Initializing the majority of the end/rend iterators at compile time.
* Adding AVL binary search trees: `gum::AVLTree`.
* Adding priority queues that can be iterated in order: `gum::SortedPriorityQueue`.
* Better messages for `gum::BayesNet::check()`.
* pyAgrum
* (internals) New docker images with linux gcc 11 for wheels.
* (internals) CMake: Use FindPython module.
* (internals) Removing some (false positive) warning notifications from swig.
* Fixing NaN bugs for new versions of Graphviz.
* Improving gum.lib.notebooks.flow and light/dark theme compatibility.
* Renaming `pyAgrum.MixedGraph.adjacents` with correct graph notion : `pyAgrum.MixedGraph.boundary`.
* New graph class `gum.PDAG` (Partially Directed Acyclic Graph).
* Fixing a small typo when displaying function as Potential.
* better messages for `pyAgrum.BayesNet.check()`.
* More robust `gum.explain.showInformation()` w.r.t. NaN.
* Fixing typos in documentation.
* Improving the organization of ReadTheDoc documentation.