diff --git a/runtime/doc/filetype.txt b/runtime/doc/filetype.txt
index a7ed928..0dfdff8 100644
--- a/runtime/doc/filetype.txt
+++ b/runtime/doc/filetype.txt
@@ -1,4 +1,4 @@
-*filetype.txt*	For Vim version 9.1.  Last change: 2024 Aug 21
+*filetype.txt*	For Vim version 9.1.  Last change: 2024 Sep 29
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -698,6 +698,28 @@
 file loaded in it each time after assigning a new value to the variable: >
 	doautocmd FileType
 <
+Markdown documentation comments may contain common runs of vertical leading
+whitespace following the comment marks (`///`) for aesthetic reasons; however,
+some horizontal runs of leading whitespace are significant in Markdown because
+they denote code blocks etc.  For convenience, a 'formatexpr' function is
+provided for the |gq| operator.  As long as neither "g:java_ignore_javadoc"
+nor "g:java_ignore_markdown" is defined, the reformatting of Markdown comments
+can be enabled on demand with: >
+	setlocal formatexpr=g:javaformat#RemoveCommonMarkdownWhitespace()
+<
+Or for Vim versions less than `7.4.265`, with: >
+	setlocal formatexpr=javaformat#RemoveCommonMarkdownWhitespace()
+<
+This function accepts a range of lines, removes a common run of vertical
+leading whitespace, and rewrites the lines of the range.  Depending on the
+author's layout style and the comment contents, which lines to select for
+reformatting can vary from the whole comment to only some portion of it.
+
+To enable the recognition of Markdown comments each time after removing
+"g:java_ignore_markdown" or "g:java_ignore_javadoc", remember to manually
+re-source "javaformat.vim" for Vim versions greater than `8.2.1397`: >
+	runtime autoload/javaformat.vim
+<
 
 JSON-FORMAT						*ft-json-plugin*
 
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 4a5b07c..ff80936 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt*	For Vim version 9.1.  Last change: 2024 Sep 19
+*syntax.txt*	For Vim version 9.1.  Last change: 2024 Sep 28
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2106,7 +2106,8 @@
 Javadoc is a program that takes special comments out of Java program files and
 creates HTML pages.  The standard configuration will highlight this HTML code
 similarly to HTML files (see |html.vim|).  You can even add JavaScript and CSS
-inside this code (see below).  The HTML rendering diverges as follows:
+inside this code (see below).  The HTML rendering and the Markdown rendering
+diverge as follows:
   1. The first sentence (all characters up to the first period `.`, which is
      followed by a whitespace character or a line terminator, or up to the
      first block tag, e.g. `@param`, `@return`) is colored as
@@ -2119,8 +2120,14 @@
 	*Special	special symbols
      and some of their arguments are colored as
 	*Function	function names.
-To turn this feature off, add the following line to your startup file: >
+To turn this feature off for both HTML and Markdown, add the following line to
+your startup file: >
 	:let g:java_ignore_javadoc = 1
+Alternatively, only suppress HTML comments or Markdown comments: >
+	:let g:java_ignore_html = 1
+	:let g:java_ignore_markdown = 1
+
+See |ft-java-plugin| for additional support available for Markdown comments.
 
 If you use the special Javadoc comment highlighting described above, you can
 also turn on special highlighting for JavaScript, Visual Basic scripts, and