release_notes.md

@@ -5,6 +5,36 @@ the different versions of LMGC90.
 This is not release notes 'stricto sensu'.  
 
 * [2015->2016](#2016)
+* [2016->2017](#2017)
+
+## <a name=2017> version 2017 ##
+
+* Better handling of Python 3 on MacOs
+* Datafields `Reac_` and `Raux_`, used in accessors, are now forces. New fields `Ireac` and `Iaux_` have been added to access impulsions
+* Access to parameters value through variable in `chipy` module
+* Use of an `inter_handler_2/3D` inteface module instead of accessing each interaction module separately
+* Add a `RecupRlocByPosition` for `CLALp` and `CSASp` contacts
+* A partial restart of the post-processing files
+* Any GMV related features has been deleted
+* Possibility to write **HDF5** files for *DOF*, *GPV* and *Interactions*
+* Add bindings to *clipper* library to help with the contact detection between polyhedra
+* Use of integer parameters instead of string for contact status in solver
+* Several fixes on the timers (especially when involving multi-threading)
+* Fix of minor bugs here and there
+
+## Impact on command scripts ##
+
+* `Reac_` and `Raux_` fields are not available through getPtrBodyVector (but `Ireac` and Iaux_` are)
+* Old interactions accessors (like `DKDKx_GetNbDKDKx`) disappeared
+* They are replaced by functions of the form `chipy.inter_handler_2D_getNb( inter_type_id )` where `inter_type_id` is an integer
+* The `inter_type_id` is accessible through variables of the `chipy` module (`chipy.DKDKx_ID`):
+ 
+## Impact for **Core** developpers ##
+
+* `Reac` and `Raux` becoms `Ireac` and `Iaux` in the body type definition
+* Many functions/accessor in detection modules disappeared. The main way to access to interaction is now through the **handlers**
+* Look into the `inter_handler_2/3D` module, the `public` sections list the available functions in each module. The first parameter is the type of interactions which is an integer from the `parameter` module.
+
 
 ## <a name=2016> version 2016 ##