diff --git a/CHANGES.md b/CHANGES.md
index 164dbc7..d3bb4e6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,20 @@
-# CHANGES - Common Print Dialog Backends - File Backend - v2.0b3 - 2023-02-20
+# CHANGES - Common Print Dialog Backends - File Backend - v2.0b4 - 2023-03-20
+
+## CHANGES IN V2.0b4 (20th March 2022)
+
+- Added test script for `make test`/`make check`
+  The script `rc/run-tests.sh`starts this backend and the
+  `pdb-text-frontend`text mode example frontend of cpdb-libs in one
+  `dbus-run-session` environment. The frontend discovers the backend
+  and some test tasks are done with it, like listing options and
+  printing a job.
+
+- README.md: Updated for renaming of cpdb-libs tools.
+  The test/development frontend `print_frontend` is renamed to
+  `cpdb-text-frontend` now.
+
+- Fixed buffer overflow caused in log line in the backend
+
 
 ## CHANGES IN V2.0b3 (20th February 2022)
 
diff --git a/configure.ac b/configure.ac
index f23c031..abfe990 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
-AC_INIT([cpdb-backend-file], [2.0b3], [https://github.com/OpenPrinting/cpdb-backend-file/issues/], [cpdb-backend-file], [https://github.com/OpenPrinting/cpdb-backend-file])
+AC_INIT([cpdb-backend-file], [2.0b4], [https://github.com/OpenPrinting/cpdb-backend-file/issues/], [cpdb-backend-file], [https://github.com/OpenPrinting/cpdb-backend-file])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_SRCDIR([src/print_backend_file.c])
 AM_INIT_AUTOMAKE([-Wall dist-xz dist-bzip2 foreign])