diff --git a/CHANGES.md b/CHANGES.md
index 749feea..07baec5 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # Version history of the RCWA package
 
+## Changes between RCWA 4.7.0 and RCWA 4.7.1 (December 6, 2022):
+
+  - Added a global switch `CTSparse` to choose sparse representation
+    for class transpositions of Z.
+  - Some janitorial changes
+
 ## Changes between RCWA 4.6.4 and RCWA 4.7.0 (July 29, 2022):
 
  - An operation `TryToComputeDegreeOfTransitivity` has been added,
diff --git a/PackageInfo.g b/PackageInfo.g
index ec4145f..d870fad 100644
--- a/PackageInfo.g
+++ b/PackageInfo.g
@@ -8,8 +8,8 @@ SetPackageInfo( rec(
 
 PackageName      := "RCWA",
 Subtitle         := "Residue-Class-Wise Affine Groups",
-Version          := "4.7.0",
-Date             := "29/07/2022", # dd/mm/yyyy format
+Version          := "4.7.1",
+Date             := "06/12/2022", # dd/mm/yyyy format
 License          := "GPL-2.0-or-later",
 Persons          := [
                       rec( LastName      := "Kohl",