diff --git a/CHANGES b/CHANGES
index 7ea74d1..facf8e1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,7 +2,13 @@
  This file describes changes in the GAP package 'XGAP'.
 ===========================================================================
 
-4.30 (2016-04-16)
+4.31 (2022-02-17)
+  * Add missing escapes to buildman.pe
+  * Enlarge the 'c' array in StartGapProcess to prevent overruns
+  * Improve the build system
+  * Add some basic test files
+
+4.30 (2019-04-16)
   * Fix compatibility with GAP 4.11 by not writing to `last`
   * Fix a bug that prevented XGAP from working on macOS 10.14
   * Some janitorial changes
diff --git a/PackageInfo.g b/PackageInfo.g
index 98a8dbc..56d4030 100644
--- a/PackageInfo.g
+++ b/PackageInfo.g
@@ -7,8 +7,8 @@ SetPackageInfo( rec(
 
 PackageName := "XGAP",
 Subtitle := "a graphical user interface for GAP",
-Version := "4.30",
-Date := "16/04/2019", # dd/mm/yyyy format
+Version := "4.31",
+Date := "17/02/2022", # dd/mm/yyyy format
 License := "GPL-2.0-or-later",
 
 Persons := [
diff --git a/README b/README
index 90f1c0b..2b66fb5 100644
--- a/README
+++ b/README
@@ -48,14 +48,14 @@ version from
 
 https://gap-packages.github.io/xgap/
 
-You need only one file with the name `xgap-4.30.tar.gz`
+You need only one file with the name `xgap-4.31.tar.gz`
 which is in the subdirectory for the packages.
 You now change your current directory to the `pkg' subdirectory of the 
 location where you installed
 GAP
 Now you extract the sources for the XGAP package:
 
-# tar xzvf xgap-4.30.tar.gz
+# tar xzvf xgap-4.31.tar.gz
 ...
 
 The <tar> utility unpacks the files and stores them into the apropriate
@@ -70,7 +70,7 @@ Configuring and Compiling the C part
 You have to change your current working directory to the ``xgap''
 subdirectory. You do this by
 
-# cd xgap-4.30
+# cd xgap-4.31
 
 if your current working directory is the one, where you used
 <tar>. There you invoke the <configure> script by:
diff --git a/doc/install.tex b/doc/install.tex
index 616db87..a8a3b2f 100644
--- a/doc/install.tex
+++ b/doc/install.tex
@@ -48,7 +48,7 @@
 https://gap-packages.github.io/xgap/
 \endtt
 
-You need only one file with the name ``xgap-4.30.tar.gz''
+You need only one file with the name ``xgap-4.31.tar.gz''
 which is in the subdirectory for the packages.
 You now change your current directory to the `pkg' subdirectory of the 
 location where you installed
@@ -56,7 +56,7 @@
 Now you extract the sources for the {\XGAP} package:
 
 \begintt
-# tar xzvf xgap-4.30.tar.gz
+# tar xzvf xgap-4.31.tar.gz
 ...
 \endtt