release_notes.md

@@ -4,11 +4,81 @@ This page aims at keeping major information regarding the changes of function na
 the different versions of LMGC90.   
 This is not release notes 'stricto sensu'.  
 
+* [2019->2020](#2020)
 * [2018->2019](#2019)
 * [2017->2018](#2018)
 * [2016->2017](#2017)
 * [2015->2016](#2016)
 
+## <a name=2020> version 2020 ##
+
+* General fixes in Core, API and documentation
+* Minimum required version of CMake is now 3.0
+* Minimum required version of gcc suite is now 4.5
+* Support of ubuntu 20 for building
+* Better handling of link with Siconos library
+* HDF5:
+  * better detection
+  * add script to build and use for Anaconda on Windows
+  * add parameters association to `Help` group
+  * add some tentative example of postprocessing the files in `examples/Tutorial/post`
+* Interaction API: partial disambiguation of interaction accessors in inter_handler wrap modules using `t` to name `this` interaction:
+    * `getNb` -> `tgetNb`
+    * `getTactLawNb` -> `tgetTactLawNb`
+    * `getIdBodies`-> `tgetIdBodies`
+    * `getInternals` -> `tgetInternals`
+    * `setInternals` -> `tsetInternals`
+* Huge changes in the management of cohesive laws:
+  * concerning the type of law:
+    * removed `TRI_CZM` law
+    * added `EXPO_CZM`, `IQS_EXPO_CZM`, `EXPO_CZM_SPRING` and `ISQ_EXPO_CZN_SPRING`
+    * added `GTN_CZM` and `GTN2_CZM`, but not usable in the solver yet
+  * management of mixity normal/tangent for these laws changed:
+    * removed functions of `tact_behav` modules: `SetG1overG2`, `SetS1overS2` and `SetD1overD2`
+    * instead all tact laws managing mixity must replace parameters `w` and `smax` with `s1`, `s2`, `G1`, `G2` (and maybe `dp1`, `dp2`)
+  * pressure in crack is no longer set using contact law parameters thus:
+    * `p` and `p0` are no longer parameters used to define contact laws
+    * instead the `tact_behav_SetPressureParameters` function must be used
+    * needed to add `get_external_pressure` function in `CLALp` and `CSASp` functions 
+  * implementation in kernel interactions of TAZ (Temporary Array Zone) accessible with `nlgs_SetTemporaryVariable` and `nlgs_GetTemporaryVariable`
+  * new examples added :
+    * `RIGID_2D/4POLYG_SHEAR_CYCLE_CZM`
+    * `mecaMAILx_2D/2Q4_PressurePostCracking`
+    * `mecaMAILx_2D/InclusionPreDamage`
+* Standardize dilatation of `DISKx`, `xKSID` and `POLYG` contactors:
+  * Deletion of `DISPx` and `xPSID` now useless modules and all detection module associated
+  * all three contactors `DISKx`, `xKSID` and `POLYG` now have `SetXdilation`, `SetVdilatation`
+  * function `SetVther` and `SetXther` of `DISKx` and `POLYG` module deleted instead
+  * use of `get_Vd_xxxxx`, `set_Vd_xxxxx` and `set_Xd_xxxxx` function in contactor modules instead of `get_vth_xxxxx` and similar
+  * added example `examples/RIGID_2D/Couette`
+* Lot of correction in postprocessing modules
+  * `DOUBLET TORQUE EVOLUTION` -> `DOUBLETS TORQUE EVOLUTION` (in pre, file names and parameters)
+  * `DOUBLET INTERACTION` -> `DOUBLET INTERACTIONS` (in pre, file names and parameters)
+  * removed `QUASI SLIDING CONTACT`
+  * added the following commands to pre:
+    * `DENSE SAMPLE COMPACITY`
+    * `DISPLAY TENSORS`
+    * `AVERAGE VELOCITY EVOLUTION`
+    * `DRY CONTACT NATURE`
+    * `WET CONTACT NATURE`
+    * `PLPLx_ANALYSIS`
+    * `COMPACITY EVOLUTION`
+    * `TRIAXIAL COMPACITY`
+    * `PRxxx DETECTION`
+    * `INTER ANALYSIS`
+    * `VISIBILITY STATE`
+
+Other changes in API:
+* Changed `PT3Dx_SetReferenceRadius` to `PT3Dx_SetDisplayRadius`
+* Added `CSASp_Trim` function
+* Added `CSASp_SetNonSymmetricDetection`
+* Added `mecaMAILx_AddBodyForceToFext` function which allow to add a nodal acceleration on a meshed body
+* Added contact  law `xQS_WET`
+* Changed `CLALp_SetNonSymetricDetection` to `CLALp_SetNonSymmetricDetection`
+* Fix bug when reading CSASp and CSPRx ascii files
+* `DISKx_GetRadius` now correctly use a contactor number in input
+
+
 ## <a name=2019> version 2019 ##
 
 * General fixes in Core, API and documentation