diff --git a/ulib/.ulib_version b/ulib/.ulib_version
index 87523dd..d81cc07 100644
--- a/ulib/.ulib_version
+++ b/ulib/.ulib_version
@@ -1 +1 @@
-41
+42
diff --git a/ulib/base b/ulib/base
index f876d3b..4a66105 100644
--- a/ulib/base
+++ b/ulib/base
@@ -1739,7 +1739,7 @@ function get_archive_appname() {
     print substr($0, 1, RSTART - 1)
   } else if (match($0, /([0-9]+([-_.][0-9]+)*([a-zA-Z][0-9]*|[-_.][0-9]+[a-zA-Z][0-9]*)?)$/)) {
     print substr($0, 1, RSTART - 1)
-  } else if (match($0, /([0-9]+[a-z][a-z][a-z]?)$/, vs)) {
+  } else if (match($0, /([0-9]+[a-z][a-z][a-z0-9]?)$/, vs)) {
     # version style AMUE, e.g. 430la
     print substr($0, 1, RSTART - 1)
   } else {
@@ -1758,7 +1758,7 @@ function get_archive_versionsuffix() {
     print vs["1"]
   } else if (match($0, /([0-9]+([-_.][0-9]+)*([a-zA-Z][0-9]*|[-_.][0-9]+[a-zA-Z][0-9]*)?)$/, vs)) {
     print vs["1"]
-  } else if (match($0, /([0-9]+[a-z][a-z][a-z]?)$/, vs)) {
+  } else if (match($0, /([0-9]+[a-z][a-z][a-z0-9]?)$/, vs)) {
     # version style AMUE, e.g. 430la
     print vs["1"]
   }
@@ -1775,7 +1775,7 @@ function get_archive_version() {
     print vs["1"]
   } else if (match($0, /([0-9]+([-_.][0-9]+)*([a-zA-Z][0-9]*|[-_.][0-9]+[a-zA-Z][0-9]*)?)$/, vs)) {
     print vs["1"]
-  } else if (match($0, /([0-9]+[a-z][a-z][a-z]?)$/, vs)) {
+  } else if (match($0, /([0-9]+[a-z][a-z][a-z0-9]?)$/, vs)) {
     # version style AMUE, e.g. 430la
     print vs["1"]
   }