diff --git a/packages/seacas/libraries/aprepro_lib/CMakeLists.txt b/packages/seacas/libraries/aprepro_lib/CMakeLists.txt
index c9a52f2cad..5d7a208104 100644
--- a/packages/seacas/libraries/aprepro_lib/CMakeLists.txt
+++ b/packages/seacas/libraries/aprepro_lib/CMakeLists.txt
@@ -172,7 +172,7 @@ TRIBITS_ADD_ADVANCED_TEST(
  OUTPUT_FILE test-strings.output
   NOEXEPREFIX NOEXESUFFIX
   PASS_ANY
- TEST_1 CMND grep ARGS -v Aprepro: test-strings.output OUTPUT_FILE grepped-strings.out
+ TEST_1 CMND grep ARGS -v ^Aprepro test-strings.output OUTPUT_FILE grepped-strings.out
  TEST_2 CMND diff ARGS -w
 		       ${CMAKE_CURRENT_SOURCE_DIR}/test_standard.out
 		       ${CMAKE_CURRENT_BINARY_DIR}/grepped-strings.out
diff --git a/packages/seacas/libraries/aprepro_lib/apr_aprepro.cc b/packages/seacas/libraries/aprepro_lib/apr_aprepro.cc
index 98fa1293dd..255159ff80 100644
--- a/packages/seacas/libraries/aprepro_lib/apr_aprepro.cc
+++ b/packages/seacas/libraries/aprepro_lib/apr_aprepro.cc
@@ -34,7 +34,9 @@
 #endif
 
 namespace {
-  const std::string version_string{"6.21 (2023/09/25)"};
+  const std::string version_short{"6.22"};
+  const std::string version_date{"(2023/09/28)"};
+  const std::string version_string = version_short + " " + version_date;
 
   void output_copyright();
 
@@ -131,7 +133,8 @@ namespace SEAMS {
     cleanup_memory();
   }
 
-  std::string Aprepro::version() { return version_string; }
+  const std::string &Aprepro::version() { return version_string; }
+  const std::string &Aprepro::short_version() { return version_short; }
 
   std::string Aprepro::long_version() const
   {
@@ -226,7 +229,7 @@ namespace SEAMS {
       if (colorize) {
         (*errorStream) << trmclr::red;
       }
-      (*errorStream) << "Aprepro: ERROR: ";
+      (*errorStream) << "Aprepro-" << short_version() << ": ERROR: ";
     }
 
     ss << msg;
diff --git a/packages/seacas/libraries/aprepro_lib/aprepro.h b/packages/seacas/libraries/aprepro_lib/aprepro.h
index d04db91126..feea00f7ae 100644
--- a/packages/seacas/libraries/aprepro_lib/aprepro.h
+++ b/packages/seacas/libraries/aprepro_lib/aprepro.h
@@ -115,10 +115,13 @@ namespace SEAMS {
     const std::ostringstream &parsing_results() const { return parsingResults; }
     void                      clear_results();
 
+    /** Return string representation of current version of aprepro + commit date.  */
+    static const std::string &version();
+
     /** Return string representation of current version of aprepro.  */
-    static std::string version();
+    static const std::string &short_version();
 
-    /** Return long version: `# Algebraic Preprocessor (Aprepro) version X.X.X` */
+    /** Return long version: `# Algebraic Preprocessor (Aprepro) version X.X (date)` */
     std::string long_version() const;
 
     /** Invoke the scanner and parser for a stream.