diff --git a/CHANGELOG.md b/CHANGELOG.md
index b08c656..3a32e13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Release notes
 
+## Version 2024.2.1
+
+### Changes
+
+- PowderPattern:
+  - fix re-using a matplotlib figure when plotting
+  - add 'figure' property
+
 ## Version 2024.2
 
 ### Changes
diff --git a/setup.py b/setup.py
index 422aa88..f5fd19e 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
 
 # Use this version when git data are not available as in a git zip archive.
 # Update when tagging a new release.
-FALLBACK_VERSION = '2024.2'
+FALLBACK_VERSION = '2024.2.1'
 
 # define extension arguments here
 ext_kws = {
diff --git a/src/pyobjcryst/__init__.py b/src/pyobjcryst/__init__.py
index ac63a72..3065744 100644
--- a/src/pyobjcryst/__init__.py
+++ b/src/pyobjcryst/__init__.py
@@ -17,7 +17,7 @@
 
 Objects are wrapped according to their header file in the ObjCryst source.
 
-See the online ObjCryst++ documentation (https://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Modules
 
diff --git a/src/pyobjcryst/atom.py b/src/pyobjcryst/atom.py
index 31458f9..7d480a1 100644
--- a/src/pyobjcryst/atom.py
+++ b/src/pyobjcryst/atom.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of Atom.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::Atom
 
diff --git a/src/pyobjcryst/crystal.py b/src/pyobjcryst/crystal.py
index 9f87948..a2864d6 100644
--- a/src/pyobjcryst/crystal.py
+++ b/src/pyobjcryst/crystal.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of Crystal.h.
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::Crystal
 
diff --git a/src/pyobjcryst/diffractiondatasinglecrystal.py b/src/pyobjcryst/diffractiondatasinglecrystal.py
index c1bb72d..011302c 100644
--- a/src/pyobjcryst/diffractiondatasinglecrystal.py
+++ b/src/pyobjcryst/diffractiondatasinglecrystal.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of DiffractionDataSingleCrystal.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::DiffractionDataSingleCrystal::
         In development !
diff --git a/src/pyobjcryst/general.py b/src/pyobjcryst/general.py
index aad9d7a..d5d50b6 100644
--- a/src/pyobjcryst/general.py
+++ b/src/pyobjcryst/general.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of things from General.h.
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["RadiationType", "ObjCrystException", "WavelengthType"]
diff --git a/src/pyobjcryst/globaloptim.py b/src/pyobjcryst/globaloptim.py
index 2b641f5..a37894a 100644
--- a/src/pyobjcryst/globaloptim.py
+++ b/src/pyobjcryst/globaloptim.py
@@ -12,7 +12,7 @@
 
 """Python wrapping of GlobalOptimObj.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::MonteCarloObj::
         In development !
diff --git a/src/pyobjcryst/indexing.py b/src/pyobjcryst/indexing.py
index 1e171a9..47138e7 100644
--- a/src/pyobjcryst/indexing.py
+++ b/src/pyobjcryst/indexing.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of UnitCell.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["CrystalSystem", "CrystalCentering", "EstimateCellVolume",
diff --git a/src/pyobjcryst/io.py b/src/pyobjcryst/io.py
index ff5a963..2b34b62 100644
--- a/src/pyobjcryst/io.py
+++ b/src/pyobjcryst/io.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of IO.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::XMLCrystTag
 - The istream constructor of XMLCrystTag is not wrapped.
diff --git a/src/pyobjcryst/lsq.py b/src/pyobjcryst/lsq.py
index e2fa656..c95b882 100644
--- a/src/pyobjcryst/lsq.py
+++ b/src/pyobjcryst/lsq.py
@@ -12,7 +12,7 @@
 
 """Python wrapping of LSQNumObj.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::LSQNumObj::
         In development !
diff --git a/src/pyobjcryst/molecule.py b/src/pyobjcryst/molecule.py
index a57e012..5151c86 100644
--- a/src/pyobjcryst/molecule.py
+++ b/src/pyobjcryst/molecule.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of Molecule.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::Molecule
 
diff --git a/src/pyobjcryst/polyhedron.py b/src/pyobjcryst/polyhedron.py
index 5a363ec..9a703b0 100644
--- a/src/pyobjcryst/polyhedron.py
+++ b/src/pyobjcryst/polyhedron.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of Polyhedron.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["MakeTetrahedron", "MakeOctahedron", "MakeSquarePlane",
diff --git a/src/pyobjcryst/powderpattern.py b/src/pyobjcryst/powderpattern.py
index f4a5883..517c277 100644
--- a/src/pyobjcryst/powderpattern.py
+++ b/src/pyobjcryst/powderpattern.py
@@ -12,7 +12,7 @@
 
 """Python wrapping of PowderPattern.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io/en/latest/).
 
 Changes from ObjCryst::PowderPattern::
         Additional functions for plotting, basic QPA and profile fitting.
diff --git a/src/pyobjcryst/radiation.py b/src/pyobjcryst/radiation.py
index f030af8..bcf6d7b 100644
--- a/src/pyobjcryst/radiation.py
+++ b/src/pyobjcryst/radiation.py
@@ -12,7 +12,7 @@
 
 """Python wrapping of Radiation from ScatteringData.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::Radiation::
         In development !
diff --git a/src/pyobjcryst/refinableobj.py b/src/pyobjcryst/refinableobj.py
index f4eb77f..41fdbe5 100644
--- a/src/pyobjcryst/refinableobj.py
+++ b/src/pyobjcryst/refinableobj.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of RefinableObj.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::RefinableObj
 
diff --git a/src/pyobjcryst/reflectionprofile.py b/src/pyobjcryst/reflectionprofile.py
index 27dafb1..76e1f65 100644
--- a/src/pyobjcryst/reflectionprofile.py
+++ b/src/pyobjcryst/reflectionprofile.py
@@ -12,7 +12,7 @@
 
 """Python wrapping of PowderPattern.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::ReflectionProfile::
         In development !
diff --git a/src/pyobjcryst/scatterer.py b/src/pyobjcryst/scatterer.py
index 8e9499c..4de18e4 100644
--- a/src/pyobjcryst/scatterer.py
+++ b/src/pyobjcryst/scatterer.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of Scatterer.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::Scatterer
 
diff --git a/src/pyobjcryst/scatteringdata.py b/src/pyobjcryst/scatteringdata.py
index 2d770d8..5714b62 100644
--- a/src/pyobjcryst/scatteringdata.py
+++ b/src/pyobjcryst/scatteringdata.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of ScatteringData class.
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["ScatteringData"]
diff --git a/src/pyobjcryst/scatteringpower.py b/src/pyobjcryst/scatteringpower.py
index 811ecaf..fddb1d0 100644
--- a/src/pyobjcryst/scatteringpower.py
+++ b/src/pyobjcryst/scatteringpower.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of ScatteringPower.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::ScatteringComponent
 - Added attributes X, Y, Z, Occupancy to conform to MolAtom.
diff --git a/src/pyobjcryst/scatteringpowersphere.py b/src/pyobjcryst/scatteringpowersphere.py
index c58fc63..ef81449 100644
--- a/src/pyobjcryst/scatteringpowersphere.py
+++ b/src/pyobjcryst/scatteringpowersphere.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of ScatteringPowerSphere.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["ScatteringPowerSphere"]
diff --git a/src/pyobjcryst/spacegroup.py b/src/pyobjcryst/spacegroup.py
index 95b59bc..72063dc 100644
--- a/src/pyobjcryst/spacegroup.py
+++ b/src/pyobjcryst/spacegroup.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of SpaceGroup.h.
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["SpaceGroup", "AsymmetricUnit"]
diff --git a/src/pyobjcryst/unitcell.py b/src/pyobjcryst/unitcell.py
index 4a76d9e..416d4fa 100644
--- a/src/pyobjcryst/unitcell.py
+++ b/src/pyobjcryst/unitcell.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of UnitCell.h
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 """
 
 __all__ = ["UnitCell"]
diff --git a/src/pyobjcryst/zscatterer.py b/src/pyobjcryst/zscatterer.py
index 38e7ab4..e8935ea 100644
--- a/src/pyobjcryst/zscatterer.py
+++ b/src/pyobjcryst/zscatterer.py
@@ -15,7 +15,7 @@
 
 """Python wrapping of Zscatterer.
 
-See the online ObjCryst++ documentation (http://vincefn.net/ObjCryst/).
+See the online ObjCryst++ documentation (https://objcryst.readthedocs.io).
 
 Changes from ObjCryst::ZAtom
 - XMLOutput and Input are not wrapped.