diff --git a/doc/misc/eww.texi b/doc/misc/eww.texi
index 6d1ba3962f3..f23180c1d4e 100644
--- a/doc/misc/eww.texi
+++ b/doc/misc/eww.texi
@@ -311,11 +311,9 @@ state the directionality.
 size or content.  By customizing @code{shr-max-image-proportion} you
 can set the maximal image proportion in relation to the window they
 are displayed in.  E.g., 0.7 means an image is allowed to take up 70%
-of the width and height.  If Emacs supports image scaling (ImageMagick
-support required) then larger images are scaled down.  You can block
-specific images completely by customizing @code{shr-blocked-images},
-or, if you want to only allow some specific images, customize
-@code{shr-allowed-images}.
+of the width and height.  If Emacs supports image scaling, then larger
+images are scaled down.  You can block specific images completely by
+customizing @code{shr-blocked-images}.
 
 @vindex shr-inhibit-images
   You can control image display by customizing
diff --git a/lisp/dired-aux.el b/lisp/dired-aux.el
index c49e4e91d83..7edfde08f80 100644
--- a/lisp/dired-aux.el
+++ b/lisp/dired-aux.el
@@ -1896,22 +1896,23 @@ rename them using `vc-rename-file'."
   "Rename FILE to NEWNAME.
 Signal a `file-already-exists' error if a file NEWNAME already exists
 unless OK-IF-ALREADY-EXISTS is non-nil."
-  (dired-handle-overwrite newname)
-  (dired-maybe-create-dirs (file-name-directory newname))
-  (if (and dired-vc-rename-file
-           (vc-backend file)
-           (ignore-errors (vc-responsible-backend newname)))
-      (vc-rename-file file newname)
-    ;; error is caught in -create-files
-    (rename-file file newname ok-if-already-exists))
-  ;; Silently rename the visited file of any buffer visiting this file.
-  (and (get-file-buffer file)
-       (with-current-buffer (get-file-buffer file)
-	 (set-visited-file-name newname nil t)))
-  (dired-remove-file file)
-  ;; See if it's an inserted subdir, and rename that, too.
-  (when (file-directory-p file)
-    (dired-rename-subdir file newname)))
+  (let ((file-is-dir-p (file-directory-p file)))
+    (dired-handle-overwrite newname)
+    (dired-maybe-create-dirs (file-name-directory newname))
+    (if (and dired-vc-rename-file
+             (vc-backend file)
+             (ignore-errors (vc-responsible-backend newname)))
+        (vc-rename-file file newname)
+      ;; error is caught in -create-files
+      (rename-file file newname ok-if-already-exists))
+    ;; Silently rename the visited file of any buffer visiting this file.
+    (and (get-file-buffer file)
+         (with-current-buffer (get-file-buffer file)
+	   (set-visited-file-name newname nil t)))
+    (dired-remove-file file)
+    ;; See if it's an inserted subdir, and rename that, too.
+    (when file-is-dir-p
+      (dired-rename-subdir file newname))))
 
 (defun dired-rename-subdir (from-dir to-dir)
   (setq from-dir (file-name-as-directory from-dir)
@@ -1924,7 +1925,7 @@ unless OK-IF-ALREADY-EXISTS is non-nil."
     (while blist
       (with-current-buffer (car blist)
 	(if (and buffer-file-name
-		 (file-in-directory-p buffer-file-name expanded-from-dir))
+                 (dired-in-this-tree-p buffer-file-name expanded-from-dir))
 	    (let ((modflag (buffer-modified-p))
 		  (to-file (replace-regexp-in-string
 			    (concat "^" (regexp-quote from-dir))
@@ -1943,7 +1944,7 @@ unless OK-IF-ALREADY-EXISTS is non-nil."
     (while alist
       (setq elt (car alist)
 	    alist (cdr alist))
-      (if (file-in-directory-p (car elt) expanded-dir)
+      (if (dired-in-this-tree-p (car elt) expanded-dir)
 	  ;; ELT's subdir is affected by the rename
 	  (dired-rename-subdir-2 elt dir to)))
     (if (equal dir default-directory)
diff --git a/lisp/gnus/mm-encode.el b/lisp/gnus/mm-encode.el
index ead3bae219d..39b1ad1f3b9 100644
--- a/lisp/gnus/mm-encode.el
+++ b/lisp/gnus/mm-encode.el
@@ -99,7 +99,7 @@ This variable should never be set directly, but bound before a call to
 
 ;;;###autoload
 (define-obsolete-function-alias 'mm-default-file-encoding
-  #'mm-default-file-type "future") ;Old bad name.
+  #'mm-default-file-type "28.1") ;Old bad name.
 ;;;###autoload
 (defun mm-default-file-type (file)
   "Return a default content type for FILE."
diff --git a/lisp/simple.el b/lisp/simple.el
index bbab57703de..7e964c9d1d5 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -222,7 +222,7 @@ rejected, and the function returns nil."
 
 (defcustom next-error-find-buffer-function #'ignore
   "Function called to find a `next-error' capable buffer.
-This functions takes the same three arguments as the function
+This function takes the same three arguments as the function
 `next-error-find-buffer', and should return the buffer to be
 used by the subsequent invocation of the command `next-error'
 and `previous-error'.
@@ -5289,7 +5289,7 @@ If `kill-append-merge-undo' is non-nil, remove the last undo
 boundary in the current buffer."
   (let ((cur (car kill-ring)))
     (kill-new (if before-p (concat string cur) (concat cur string))
-              (or (string= cur "")
+              (or (= (length cur) 0)
                   (null (get-text-property 0 'yank-handler cur)))))
   (when (and kill-append-merge-undo (not buffer-read-only))
     (let ((prev buffer-undo-list)
diff --git a/msdos/sed1v2.inp b/msdos/sed1v2.inp
index 4cc733ee79e..b7818f8b21e 100644
--- a/msdos/sed1v2.inp
+++ b/msdos/sed1v2.inp
@@ -198,6 +198,8 @@ s/ *@WEBP_LIBS@//
 /^PAXCTL_dumped *=/s/=.*$/=/
 /^PAXCTL_notdumped *=/s/=.*$/=/
 /^DUMPING *=/s/@DUMPING@/unexec/
+/^[ \t]*MAKE_PDUMPER_FINGERPRINT = *$/c\
+MAKE_PDUMPER_FINGERPRINT =
 /^lisp\.mk:/,/^$/c\
 lisp.mk: $(lispsource)/loadup.el\
 	@rm -f $@\
@@ -209,6 +211,10 @@ lisp.mk: $(lispsource)/loadup.el\
 
 /^	[ 	]*\$(AM_V_at)\$(libsrc)\/make-docfile -d/s!make-docfile!make-docfile -o $(etc)/DOC!
 / > \$(etc)\/DOC *$/s/ >.*$//
+/^\$(etc)\/DOC/,/^$/{
+  /^$/i\
+	cd ../src
+}
 /^	[ 	]*\$(AM_V_GLOBALS)\$(libsrc)\/make-docfile.*>.*globals.tmp/s!make-docfile!make-docfile -o globals.tmp!
 /^	[ 	]*\$(AM_V_GLOBALS)\$(libsrc)\/make-doc/s!>.*$!!
 /^\$(libsrc)\/make-docfile\$(EXEEXT): /i\
diff --git a/msdos/sedlibmk.inp b/msdos/sedlibmk.inp
index 45e03621ce3..302fefe19f0 100644
--- a/msdos/sedlibmk.inp
+++ b/msdos/sedlibmk.inp
@@ -180,11 +180,14 @@ s/@PACKAGE@/emacs/
 /^GL_GNULIB_ENVIRON *=/s/@GL_GNULIB_ENVIRON@/1/
 /^GL_GNULIB_FDATASYNC *=/s/@GL_GNULIB_FDATASYNC@/1/
 /^GL_GNULIB_GETLOADAVG *=/s/@GL_GNULIB_GETLOADAVG@/1/
+/^GL_GNULIB_GETRANDOM *=/s/@GL_GNULIB_GETRANDOM@/1/
 /^GL_GNULIB_UNISTD_H_GETOPT *=/s/@GL_GNULIB_UNISTD_H_GETOPT@/1/
+/^GL_GNULIB_MEMMEM *=/s/@GL_GNULIB_MEMMEM@/1/
 /^GL_GNULIB_MEMRCHR *=/s/@GL_GNULIB_MEMRCHR@/1/
 /^GL_GNULIB_MEMPCPY *=/s/@GL_GNULIB_MEMPCPY@/1/
 /^GL_GNULIB_MKOSTEMP *=/s/@GL_GNULIB_MKOSTEMP@/1/
 /^GL_GNULIB_MKTIME *=/s/@GL_GNULIB_MKTIME@/1/
+/^GL_GNULIB_SIGDESCR_NP *=/s/@GL_GNULIB_SIGDESCR_NP@/1/
 /^GL_GNULIB_TIME_R *=/s/@GL_GNULIB_TIME_R@/1/
 /^GL_GNULIB_TIMEGM *=/s/@GL_GNULIB_TIMEGM@/1/
 /^GL_GNULIB_TIME_RZ *=/s/@GL_GNULIB_TIME_RZ@/1/
diff --git a/src/msdos.h b/src/msdos.h
index 7e57c7c1102..24697bcf24b 100644
--- a/src/msdos.h
+++ b/src/msdos.h
@@ -22,6 +22,10 @@ along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
 #include <dpmi.h>
 
 #include "termhooks.h"		/* struct terminal */
+struct terminal;
+
+extern unsigned int _dos_commit(int);
+#define tcdrain(f) _dos_commit(f)
 
 int dos_ttraw (struct tty_display_info *);
 int dos_ttcooked (void);
@@ -57,6 +61,11 @@ ssize_t readlinkat (int, const char *, char *, size_t);
 int fstatat (int, char const *, struct stat *, int);
 int unsetenv (const char *);
 int faccessat (int, const char *, int, int);
+int openat (int, const char *, int, int);
+int fchmodat (int, const char *, mode_t, int);
+int futimens (int, const struct timespec[2]);
+int utimensat (int, const char *, const struct timespec[2], int);
+
 void msdos_fatal_signal (int);
 void syms_of_msdos (void);
 int pthread_sigmask (int, const sigset_t *, sigset_t *);