diff --git a/asdf.asd b/asdf.asd
index 1f30bd9a7d0534859f95ac8192b29644ec1ed543..682496d7598e43b98e337127e9d13187c392b090 100644
--- a/asdf.asd
+++ b/asdf.asd
@@ -74,7 +74,7 @@
   :licence "MIT"
   :description "Another System Definition Facility"
   :long-description "ASDF builds Common Lisp software organized into defined systems."
-  :version "2.32.26" ;; to be automatically updated by make bump-version
+  :version "2.32.27" ;; to be automatically updated by make bump-version
   :depends-on ()
   #+asdf3 :encoding #+asdf3 :utf-8
   ;; For most purposes, asdf itself specially counts as a builtin system.
diff --git a/bundle.lisp b/bundle.lisp
index 38bda01515034e377afadc9bb3a6d483371b2b11..32392c118c55f99516c7c4eb57938a7024e6ca60 100644
--- a/bundle.lisp
+++ b/bundle.lisp
@@ -394,9 +394,8 @@
            (non-fasl-files (remove (compile-file-type) input-files :key #'pathname-type :test #'equalp))
            (output-files (output-files o c))
            (output-file (first output-files)))
-      ;;(unless input-files (format t "WTF no input-files for ~S on ~S !???" o c))
+      (assert (eq (not input-files) (not output-files)))
       (when input-files
-        (assert output-files)
         (when non-fasl-files
           (error "On ~A, asdf-bundle can only bundle FASL files, but these were also produced: ~S"
                  (implementation-type) non-fasl-files))
diff --git a/header.lisp b/header.lisp
index ca60428f2948f2904c92718b02a3b34d04804ff6..d674a6d8161e7a46ef7073fd27d51f05a29206ac 100644
--- a/header.lisp
+++ b/header.lisp
@@ -1,5 +1,5 @@
 ;;; -*- mode: Common-Lisp; Base: 10 ; Syntax: ANSI-Common-Lisp -*-
-;;; This is ASDF 2.32.26: Another System Definition Facility.
+;;; This is ASDF 2.32.27: Another System Definition Facility.
 ;;;
 ;;; Feedback, bug reports, and patches are all welcome:
 ;;; please mail to <asdf-devel@common-lisp.net>.
diff --git a/test/run-tests.sh b/test/run-tests.sh
index 06381fa6b881781a8a9620e49c9051442629e0b7..aa0536c5fc1488f9f4416e061ed0853bfe5b0a17 100755
--- a/test/run-tests.sh
+++ b/test/run-tests.sh
@@ -302,6 +302,8 @@ valid_upgrade_test_p () {
         # It's damn slow. Also, for some reason, we punt on anything earlier than 2.25,
         # and only need to test it once, below for 2.24.
         abcl:1.*|abcl:2.00[0-9]:*|abcl:201[0-9]:*|abcl:2.2[0-3]:*) : ;;
+        # Skip allegro modern on 1.x -- fails for rpgoldman on his mac (!)
+        allegromodern:1.*) : ;;
         # ccl fasl numbering broke loading of old asdf 2.0
         ccl:2.0[01]*) : ;;
         # my old ubuntu clisp 2.44.1 is wired in
diff --git a/upgrade.lisp b/upgrade.lisp
index 6e03b159cbe1a5dc0799bd5a8f195425197955fa..91c47094f8ac582a435e3bcd496c3b950f402ce0 100644
--- a/upgrade.lisp
+++ b/upgrade.lisp
@@ -52,7 +52,7 @@ You can compare this string with e.g.: (ASDF:VERSION-SATISFIES (ASDF:ASDF-VERSIO
          ;; "3.4.5.67" would be a development version in the official upstream of 3.4.5.
          ;; "3.4.5.0.8" would be your eighth local modification of official release 3.4.5
          ;; "3.4.5.67.8" would be your eighth local modification of development version 3.4.5.67
-         (asdf-version "2.32.26")
+         (asdf-version "2.32.27")
          (existing-version (asdf-version)))
     (setf *asdf-version* asdf-version)
     (when (and existing-version (not (equal asdf-version existing-version)))
diff --git a/version.lisp-expr b/version.lisp-expr
index 6975e7d904acd09a4e4c1b5268c09dbf55ea9443..fb6d28606a574580e2f80229ae4a2b8f412dfa74 100644
--- a/version.lisp-expr
+++ b/version.lisp-expr
@@ -1 +1 @@
-"2.32.26"
+"2.32.27"