From 853cb6f09e6b313411ed4bf3ccd28138375bc238 Mon Sep 17 00:00:00 2001
From: "clemens.schmid@esrf.fr" <clemens.schmid@esrf.fr>
Date: Tue, 25 Aug 2026 10:54:45 +0200
Subject: [PATCH 1/3] Add method GetRwHistory to lsq

turns internal std::vector<REAL> into Python list
---
 src/extensions/lsq_ext.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/extensions/lsq_ext.cpp b/src/extensions/lsq_ext.cpp
index b28ba8d..f34420c 100644
--- a/src/extensions/lsq_ext.cpp
+++ b/src/extensions/lsq_ext.cpp
@@ -62,6 +62,15 @@ bp::dict _GetVarianceCovarianceMap(LSQNumObj & lsq)
     return d;
 }
 
+bp::list _GetRwHistory(const LSQNumObj & lsq)
+{
+    bp::list out;
+    const std::vector<REAL> & h = lsq.GetRwHistory();
+    for (std::vector<REAL>::const_iterator it = h.begin(); it != h.end(); ++it)
+        out.append(*it);
+    return out;
+}
+
 }   // namespace
 
 void wrap_lsq()
@@ -98,6 +107,7 @@ void wrap_lsq()
                  bp::arg("minChi2var")=0.01))
         .def("Rfactor", &LSQNumObj::Rfactor)
         .def("RwFactor", &LSQNumObj::RwFactor)
+        .def("GetRwHistory", &_GetRwHistory)
         .def("ChiSquare", &LSQNumObj::ChiSquare)
         .def("SetRefinedObj", &LSQNumObj::SetRefinedObj,
                 (bp::arg("obj"), bp::arg("LSQFuncIndex")=0,

From 385287ca22f0052a172b461211defd9169087335 Mon Sep 17 00:00:00 2001
From: Clemens Schmid <clem.schmid@gmail.com>
Date: Tue, 25 Aug 2026 13:48:02 +0200
Subject: [PATCH 2/3] add news file

---
 news/rw_history.rst | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 news/rw_history.rst

diff --git a/news/rw_history.rst b/news/rw_history.rst
new file mode 100644
index 0000000..a348487
--- /dev/null
+++ b/news/rw_history.rst
@@ -0,0 +1,23 @@
+**Added:**
+
+* Add method ``GetRwHistory`` on LSQ object to get history of Rw values through one run of ``lsq.Refine()``.
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

From 6b15a8f779302f158593e64748192048f121915e Mon Sep 17 00:00:00 2001
From: Clemens Schmid <clem.schmid@gmail.com>
Date: Wed, 23 Sep 2026 12:48:37 +0200
Subject: [PATCH 3/3] bump libobjcryst version to 2026.3.0

---
 requirements/conda.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements/conda.txt b/requirements/conda.txt
index 476a320..e48448d 100644
--- a/requirements/conda.txt
+++ b/requirements/conda.txt
@@ -1,5 +1,5 @@
 numpy
-libobjcryst>=2026.2.0
+libobjcryst>=2026.3.0
 libboost-devel
 libboost-python
 packaging # for matplotlib version parsing in powderpattern.py