diff --git a/next/rules.html b/next/rules.html
index 0736ca767..80e31a077 100644
--- a/next/rules.html
+++ b/next/rules.html
@@ -480,7 +480,7 @@ granted provided this this copyright and notice are included in its entirety
 and remains unaltered. All other uses <strong>MUST</strong> receive prior permission in
 writing by <a href="../contact.html">contacting the judges</a>.</p>
 <h2 id="rules-version">Rules version</h2>
-<p>These IOCCC Rules are version <strong>29.04 2025-11-20</strong>.</p>
+<p>These IOCCC Rules are version <strong>29.05 2025-11-21</strong>.</p>
 <p>Be sure to read the <a href="guidelines.html">IOCCC guidelines</a>.</p>
 <div id="rule0">
 <h2 id="rule-0---dates">Rule 0 - Dates</h2>
@@ -535,37 +535,42 @@ email or for those who wait until the last minute to try to register!</p>
 <h2 id="rule-4---files">Rule 4 - Files</h2>
 </div>
 <p>The submission <strong>MUST</strong> include at least these files: <code>Makefile</code>, <code>prog.c</code>,
-<code>remarks.md</code>,<code>.info.json</code>, and <code>.auth.json</code>. The last two <strong>MUST</strong> be
-generated by <code>mkiocccenty(1)</code> when packing a submission, and <strong>MUST</strong>
-pass the <code>chksubmit(1)</code> tests.</p>
-<p>The <code>Makefile</code>, <code>remarks.md</code>,<code>.info.json</code>, and <code>.auth.json</code> <strong>MUST</strong>
-have a file size <strong>greater than 0</strong>.</p>
-<p>Your submitted source code <strong>MUST</strong> be called <code>prog.c</code>. When the <code>Makefile</code>
+<code>remarks.md</code>,<code>.info.json</code>, and <code>.auth.json</code>.</p>
+<p>At a minimum the following requirements apply. Additional requirements
+may be imposed by <code>mkiocccentry(1)</code> updates that have yet to be listed
+here:</p>
+<ul>
+<li><p><code>.info.json</code>, and <code>.auth.json</code> <strong>MUST</strong> be generated by <code>mkiocccenty(1)</code>
+when packing a submission, and <strong>MUST</strong> pass the <code>chksubmit(1)</code> tests.</p></li>
+<li><p>The <code>Makefile</code>, <code>remarks.md</code>,<code>.info.json</code>, and <code>.auth.json</code> <strong>MUST</strong>
+have a file size <strong>greater than 0</strong>.</p></li>
+<li><p>Your submitted source code <strong>MUST</strong> be called <code>prog.c</code>. When the <code>Makefile</code>
 compiles your code, the executable (if applicable) <strong>MUST</strong> be called <code>prog</code>.
-The <code>Makefile</code> may compile your source code into other filenames as well.</p>
-<p>As <code>prog</code>, <code>prog.alt</code>, <code>prog.alt.o</code>, <code>prog.o</code> may be created by your
+The <code>Makefile</code> may compile your source code into other filenames as well.</p></li>
+<li><p>As <code>prog</code>, <code>prog.alt</code>, <code>prog.alt.o</code>, <code>prog.o</code> may be created by your
 <code>Makefile</code>, your submission <strong>MUST NOT</strong> include those files in
-your top directory, as original content.</p>
-<p>Your submission may <strong>NOT</strong> have any file that starts with <code>COPYING</code>,
-<code>COPYRIGHT</code>, or <code>LICENSE</code> as those files are reserved by IOCCC.</p>
-<p>Your submission may <strong>NOT</strong> have in the top directory, <code>prog.orig.c</code>,
-<code>README.md</code>, nor <code>index.html</code> as those files reserved by IOCCC.</p>
-<p>Your submission may <strong>NOT</strong> have in the top directory, any file
+your top directory, as original content.</p></li>
+<li><p>Your submission may <strong>NOT</strong> have any file that starts with <code>COPYING</code>,
+<code>COPYRIGHT</code>, or <code>LICENSE</code> as those files are reserved by IOCCC.</p></li>
+<li><p>Your submission may <strong>NOT</strong> have in the top directory, <code>prog.orig.c</code>,
+<code>README.md</code>, nor <code>index.html</code> as those files reserved by IOCCC.</p></li>
+<li><p>Your submission may <strong>NOT</strong> have in the top directory, any file
 that matches a file glob pattern form <code>[0-9][0-9][0-9][0-9]_*.tar.bz2</code>
-as those files are reserved by IOCCC.</p>
-<p>Your submission may <strong>ONLY</strong> contain files and directories. Other file
-types such as symlinks, sockets, etc are <strong>NOT</strong> allowed.</p>
-<p>All directories <strong>MUST</strong> have a file mode of <strong>0755</strong>. All files
+as those files are reserved by IOCCC.</p></li>
+<li><p>Your submission may <strong>ONLY</strong> contain files and directories. Other file
+types such as symlinks, sockets, etc are <strong>NOT</strong> allowed.</p></li>
+<li><p>All directories <strong>MUST</strong> have a file mode of <strong>0755</strong>. All files
 <strong>MUST</strong> have the file mode of <strong>0444</strong>, except for files that
-end in <code>.sh</code> which must have a mode of <strong>0555</strong>.</p>
-<p>All files that end in <code>.md</code> <strong>MUST</strong> be in markdown format.
+end in <code>.sh</code> which must have a mode of <strong>0555</strong>.</p></li>
+<li><p>All files that end in <code>.md</code> <strong>MUST</strong> be in markdown format.
 We recommend that markdown files observe our
-<a href="../markdown.html">IOCCC markdown guidelines</a>.</p>
-<p>All filenames are treated as case insensitive. For example, <code>REMARKS.MD</code>,
+<a href="../markdown.html">IOCCC markdown guidelines</a>.</p></li>
+<li><p>All filenames are treated as case insensitive. For example, <code>REMARKS.MD</code>,
 and <code>Remarks.md</code>, and <code>remarks.md</code> are considered by <code>mkiocccenty(1)</code>
-to be the <strong>SAME</strong> file. If you are preparing your submission on a case
-sensitive filesystem, ensure that your submission will work on
-a case insensitive filesystem.</p>
+to be the <strong>SAME</strong> file. When preparing a submission on a case
+sensitive filesystem, ensure that the submission will work on
+a case insensitive filesystem.</p></li>
+</ul>
 <p>The <code>remarks.md</code> and <code>Makefile</code> are explained in more detail in the Guidelines.</p>
 <p>See <a href="../markdown.html">IOCCC markdown guidelines</a>.</p>
 <p>See <a href="rules.html#rule-17---packaging">Rule 17 - Packaging</a>.</p>
diff --git a/next/rules.md b/next/rules.md
index 9444a1628..c927e4ee3 100644
--- a/next/rules.md
+++ b/next/rules.md
@@ -39,7 +39,7 @@ writing by [contacting the judges](../contact.html).
 
 ## Rules version
 
-These IOCCC Rules are version **29.04 2025-11-20**.
+These IOCCC Rules are version **29.05 2025-11-21**.
 
 Be sure to read the [IOCCC guidelines](guidelines.html).
 
diff --git a/sitemap.xml b/sitemap.xml
index ac174e0be..059ee5496 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -16870,11 +16870,11 @@
 </url>
 <url>
     <loc>https://www.ioccc.org/next/rules.html</loc>
-    <lastmod>2025-11-21T00:38:20+00:00</lastmod>
+    <lastmod>2025-11-21T12:43:18+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/next/rules.md</loc>
-    <lastmod>2025-11-21T00:38:17+00:00</lastmod>
+    <lastmod>2025-11-21T12:42:42+00:00</lastmod>
 </url>
 <url>
     <loc>https://www.ioccc.org/next/submit.html</loc>