Index: trunk/ppStack/src/ppStack.c
===================================================================
--- trunk/ppStack/src/ppStack.c	(revision 23192)
+++ trunk/ppStack/src/ppStack.c	(revision 23195)
@@ -33,4 +33,6 @@
         goto die;
     }
+
+    ppStackVersionPrint();
 
     if (!pmModelClassInit()) {
Index: trunk/ppStack/src/ppStack.h
===================================================================
--- trunk/ppStack/src/ppStack.h	(revision 23192)
+++ trunk/ppStack/src/ppStack.h	(revision 23195)
@@ -146,4 +146,7 @@
     );
 
+/// Print version information
+void ppStackVersionPrint(void);
+
 /// Convolve image to match specified seeing
 bool ppStackMatch(pmReadout *readout,   // Readout to be convolved; replaced with output
Index: trunk/ppStack/src/ppStackVersion.c
===================================================================
--- trunk/ppStack/src/ppStackVersion.c	(revision 23192)
+++ trunk/ppStack/src/ppStackVersion.c	(revision 23195)
@@ -80,2 +80,31 @@
     return true;
 }
+
+void ppStackVersionPrint(void)
+{
+    psTime *time = psTimeGetNow(PS_TIME_TAI); // The time now
+    psString timeString = psTimeToISO(time); // The time in an ISO string
+    psFree(time);
+    psLogMsg("ppStack", PS_LOG_INFO, "ppStack at %s", timeString);
+    psFree(timeString);
+
+    psString pslib = psLibVersionLong();// psLib version
+    psString psmodules = psModulesVersionLong(); // psModules version
+    psString psphot = psphotVersionLong(); // psphot version
+    psString ppStats = ppStatsVersionLong(); // psastro version
+    psString ppStack = ppStackVersionLong(); // ppStack version
+
+    psLogMsg("ppStack", PS_LOG_INFO, "%s", pslib);
+    psLogMsg("ppStack", PS_LOG_INFO, "%s", psmodules);
+    psLogMsg("ppStack", PS_LOG_INFO, "%s", psphot);
+    psLogMsg("ppStack", PS_LOG_INFO, "%s", ppStats);
+    psLogMsg("ppStack", PS_LOG_INFO, "%s", ppStack);
+
+    psFree(pslib);
+    psFree(psmodules);
+    psFree(psphot);
+    psFree(ppStats);
+    psFree(ppStack);
+
+    return;
+}