updated CHANGES.md [ci skip]

CHANGES.md

@@ -5,7 +5,9 @@
 * PET:
   - added extra members to ScatterEstimation to set behaviour of OSEM used during scatter estimation
   - added test for scatter simulation and estimation
-  - added missing `set`/`get` methods for OSSPS `relaxation_parameter`, `relaxation_gamma` and `upper_bound`.
+  - added missing `set`/`get` methods for OSSPS `relaxation_parameter`, `relaxation_gamma` and `upper_bound`
+  - fixed estimate_randoms
+  - ensured compatibility with STIR 6.0
 
 * CMake/building:
   - default `DISABLE_MATLAB` to `ON` as our Matlab support is out-of-date and could
@@ -23,7 +25,10 @@
   - `return None` in the method `Datacontainer.shape()` replaced with more Pythonesque `return (0,)`.
 
 * MR
-  - Handling of "irregular" ISMRMRD acquisitions hit what appears to be a bug in recent Gadgetron (HEAD detached at 0670db84). A quick fix applied, Gadgetron issue to be raised.
+  - Improved handling of "irregular" ISMRMRD acquisitions by providing IgnoreMask object that allows the user to specify which kind of acquisitions is to be ignored. By default, no acquisition is ignored when reading from file.
+
+* Registration
+  - fixed handling of complex images in NiftiImageData.cpp.
 
 ## v3.5.0