diff --git a/bin/README.md b/bin/README.md
index 0989448a7..fce8e6f00 100644
--- a/bin/README.md
+++ b/bin/README.md
@@ -75,6 +75,23 @@ invoked as well, should you wish to see their output or if you have some odd
 need to do so.
 
 
+<div id="add-dir">
+### [add-dir.sh](%%REPO_URL%%/bin/add-dir.sh)
+</div>
+
+This tool is used my the [Judges](../judges.html) as part of the final
+steps to announce a new winning IOCCC entry.
+
+For example:
+
+``` <!---sh-->
+    mkdir -p YYYY/dir
+    bin/add-dir.sh YYYY/dir
+```
+
+Here, `YYYY/dir` must the path to the winning IOCCC entry.
+
+
 <div id="all-run">
 ### [all-run.sh](%%REPO_URL%%/bin/all-run.sh)
 </div>
diff --git a/bin/add-dir.sh b/bin/add-dir.sh
new file mode 100755
index 000000000..39ac34f51
--- /dev/null
+++ b/bin/add-dir.sh
@@ -0,0 +1,400 @@
+#!/usr/bin/env bash
+#
+# add-dir.sh - add a new entry directory under an IOCCC year
+#
+# We update YYYY/.year to reference a new entry directory under
+# a given IOCCC year.
+#
+# Copyright (c) 2024 by Landon Curt Noll.  All Rights Reserved.
+#
+# Permission to use, copy, modify, and distribute this software and
+# its documentation for any purpose and without fee is hereby granted,
+# provided that the above copyright, this permission notice and text
+# this comment, and the disclaimer below appear in all of the following:
+#
+#       supporting documentation
+#       source copies
+#       source works derived from this source
+#       binaries derived from this source or from derived source
+#
+# LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+# EVENT SHALL LANDON CURT NOLL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+# USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+#
+# chongo (Landon Curt Noll, http://www.isthe.com/chongo/index.html) /\oo/\
+#
+# Share and enjoy! :-)
+
+# firewall - run only with a bash that is version 5.1.8 or later
+#
+# The "/usr/bin/env bash" command must result in using a bash that
+# is version 5.1.8 or later.
+#
+# We could relax this version and insist on version 4.2 or later.  Versions
+# of bash between 4.2 and 5.1.7 might work.  However, to be safe, we will require
+# bash version 5.1.8 or later.
+#
+# WHY 5.1.8 and not 4.2?  This safely is done because macOS Homebrew bash we
+# often use is "version 5.2.26(1)-release" or later, and the RHEL Linux bash we
+# use often use is "version 5.1.8(1)-release" or later.  These versions are what
+# we initially tested.  We recommend you either upgrade bash or install a newer
+# version of bash and adjust your $PATH so that "/usr/bin/env bash" finds a bash
+# that is version 5.1.8 or later.
+#
+# NOTE: The macOS shipped, as of 2024 March 15, a version of bash is something like
+#	bash "version 3.2.57(1)-release".  That macOS shipped version of bash
+#	will NOT work.  For users of macOS we recommend you install Homebrew,
+#	(see https://brew.sh), and then run "brew install bash" which will
+#	typically install it into /opt/homebrew/bin/bash, and then arrange your $PATH
+#	so that "/usr/bin/env bash" finds "/opt/homebrew/bin" (or whatever the
+#	Homebrew bash is).
+#
+# NOTE: And while MacPorts might work, we noticed a number of subtle differences
+#	with some of their ported tools to suggest you might be better off
+#	with installing Homebrew (see https://brew.sh).  No disrespect is intended
+#	to the MacPorts team as they do a commendable job.  Nevertheless we ran
+#	into enough differences with MacPorts environments to suggest you
+#	might find a better experience with this tool under Homebrew instead.
+#
+if [[ -z ${BASH_VERSINFO[0]} ||
+	 ${BASH_VERSINFO[0]} -lt 5 ||
+	 ${BASH_VERSINFO[0]} -eq 5 && ${BASH_VERSINFO[1]} -lt 1 ||
+	 ${BASH_VERSINFO[0]} -eq 5 && ${BASH_VERSINFO[1]} -eq 1 && ${BASH_VERSINFO[2]} -lt 8 ]]; then
+    echo "$0: ERROR: bash version needs to be >= 5.1.8: $BASH_VERSION" 1>&2
+    echo "$0: Warning: bash version >= 4.2 might work but 5.1.8 was the minimum we tested" 1>&2
+    echo "$0: Notice: For macOS users: install Homebrew (see https://brew.sh), then run" \
+	 ""brew install bash" and then modify your \$PATH so that \"#!/usr/bin/env bash\"" \
+	 "finds the Homebrew installed (usually /opt/homebrew/bin/bash) version of bash" 1>&2
+    exit 4
+fi
+
+
+# setup bash file matching
+#
+# We must declare arrays with -ag or -Ag, and we need loops to "export" modified variables.
+# This requires a bash with a version 4.2 or later.  See the larger comment above about bash versions.
+#
+shopt -s nullglob	# enable expanded to nothing rather than remaining unexpanded
+shopt -u failglob	# disable error message if no matches are found
+shopt -u dotglob	# disable matching files starting with .
+shopt -u nocaseglob	# disable strict case matching
+shopt -u extglob	# enable extended globbing patterns
+shopt -s globstar	# enable ** to match all files and zero or more directories and subdirectories
+
+
+# set variables referenced in the usage message
+#
+export VERSION="1.0 2024-07-21"
+NAME=$(basename "$0")
+export NAME
+export V_FLAG=0
+GIT_TOOL=$(type -P git)
+export GIT_TOOL
+if [[ -z "$GIT_TOOL" ]]; then
+    echo "$0: FATAL: git tool is not installed or not in \$PATH" 1>&2
+    exit 5
+fi
+"$GIT_TOOL" rev-parse --is-inside-work-tree >/dev/null 2>&1
+status="$?"
+if [[ $status -eq 0 ]]; then
+    TOPDIR=$("$GIT_TOOL" rev-parse --show-toplevel)
+fi
+export TOPDIR
+export REPO_URL="https://github.com/ioccc-src/temp-test-ioccc/blob/master"
+#
+export NOOP=
+export DO_NOT_PROCESS=
+
+
+# usage
+#
+export USAGE="usage: $0 [-h] [-v level] [-V] [-d topdir] [-n] [-N] YYYY/dir
+
+	-h		print help message and exit
+	-v level	set verbosity level (def level: 0)
+	-V		print version string and exit
+
+	-d topdir	set topdir (def: $TOPDIR)
+
+	-n		go thru the actions, but do not update any files (def: do the action)
+	-N		do not process anything, just parse arguments (def: process something)
+
+	YYYY/dir	path from topdir to entry directory
+
+Exit codes:
+     0         all OK
+     1	       invalid year
+     2         -h and help string printed or -V and version string printed
+     3         command line error
+     4         bash version is too old
+     5	       some internal tool is not found or not an executable file
+     6	       problems found with or in the topdir or topdir/YYYY directory
+ >= 10         internal error
+
+$NAME version: $VERSION"
+
+# parse command line
+#
+while getopts :hv:Vd:nN flag; do
+  case "$flag" in
+    h) echo "$USAGE" 1>&2
+	exit 2
+	;;
+    v) V_FLAG="$OPTARG"
+	;;
+    V) echo "$VERSION"
+	exit 2
+	;;
+    d) TOPDIR="$OPTARG"
+	;;
+    n) NOOP="-n"
+	;;
+    N) DO_NOT_PROCESS="-N"
+	;;
+    \?) echo "$0: ERROR: invalid option: -$OPTARG" 1>&2
+	echo 1>&2
+	print_usage 1>&2
+	exit 3
+	;;
+    :) echo "$0: ERROR: option -$OPTARG requires an argument" 1>&2
+	echo 1>&2
+	echo "$USAGE" 1>&2
+	exit 3
+	;;
+    *) echo "$0: ERROR: unexpected value from getopts: $flag" 1>&2
+	echo 1>&2
+	echo "$USAGE" 1>&2
+	exit 3
+	;;
+  esac
+done
+
+# remove the options
+#
+shift $(( OPTIND - 1 ));
+#
+if [[ $V_FLAG -ge 5 ]]; then
+    echo "$0: debug[5]: file argument count: $#" 1>&2
+fi
+#
+# verify arg count and parse args
+#
+if [[ $# -ne 1 ]]; then
+    echo "$0: ERROR: expected 1 arg, found: $#" 1>&2
+    echo 1>&2
+    echo "$USAGE" 1>&2
+    exit 3
+fi
+export ENTRY_PATH="$1"
+
+# verify that we have a topdir directory
+#
+REPO_NAME=$(basename "$REPO_URL")
+export REPO_NAME
+if [[ -z $TOPDIR ]]; then
+    echo "$0: ERROR: cannot find top of git repo directory" 1>&2
+    echo "$0: Notice: if needed: $GIT_TOOL clone $REPO_URL; cd $REPO_NAME" 1>&2
+    exit 6
+fi
+if [[ ! -e $TOPDIR ]]; then
+    echo "$0: ERROR: TOPDIR does not exist: $TOPDIR" 1>&2
+    echo "$0: Notice: if needed: $GIT_TOOL clone $REPO_URL; cd $REPO_NAME" 1>&2
+    exit 6
+fi
+if [[ ! -d $TOPDIR ]]; then
+    echo "$0: ERROR: TOPDIR is not a directory: $TOPDIR" 1>&2
+    echo "$0: Notice: if needed: $GIT_TOOL clone $REPO_URL; cd $REPO_NAME" 1>&2
+    exit 6
+fi
+
+# cd to topdir
+#
+if [[ ! -e $TOPDIR ]]; then
+    echo "$0: ERROR: cannot cd to non-existent path: $TOPDIR" 1>&2
+    exit 6
+fi
+if [[ ! -d $TOPDIR ]]; then
+    echo "$0: ERROR: cannot cd to a non-directory: $TOPDIR" 1>&2
+    exit 6
+fi
+export CD_FAILED
+if [[ $V_FLAG -ge 5 ]]; then
+    echo "$0: debug[5]: about to: cd $TOPDIR" 1>&2
+fi
+cd "$TOPDIR" || CD_FAILED="true"
+if [[ -n $CD_FAILED ]]; then
+    echo "$0: ERROR: cd $TOPDIR failed" 1>&2
+    exit 6
+fi
+if [[ $V_FLAG -ge 3 ]]; then
+    echo "$0: debug[3]: now in directory: $(/bin/pwd)" 1>&2
+fi
+
+# verify we have a non-empty readable .top file
+#
+export TOP_FILE=".top"
+if [[ ! -e $TOP_FILE ]]; then
+    echo  "$0: ERROR: .top does not exist: $TOP_FILE" 1>&2
+    exit 6
+fi
+if [[ ! -f $TOP_FILE ]]; then
+    echo  "$0: ERROR: .top is not a regular file: $TOP_FILE" 1>&2
+    exit 6
+fi
+if [[ ! -r $TOP_FILE ]]; then
+    echo  "$0: ERROR: .top is not an readable file: $TOP_FILE" 1>&2
+    exit 6
+fi
+if [[ ! -s $TOP_FILE ]]; then
+    echo  "$0: ERROR: .top is not a non-empty readable file: $TOP_FILE" 1>&2
+    exit 6
+fi
+
+# verify that we have an bin subdirectory
+#
+export BIN_PATH="$TOPDIR/bin"
+if [[ ! -d $BIN_PATH ]]; then
+    echo "$0: ERROR: bin is not a directory under topdir: $BIN_PATH" 1>&2
+    exit 6
+fi
+export BIN_DIR="bin"
+
+# verify that ENTRY_PATH is a entry directory
+#
+if [[ ! -d $ENTRY_PATH ]]; then
+    echo "$0: ERROR: arg is not a directory: $ENTRY_PATH" 1>&2
+    exit 3
+fi
+if [[ ! -w $ENTRY_PATH ]]; then
+    echo "$0: ERROR: arg is not a writable directory: $ENTRY_PATH" 1>&2
+    exit 3
+fi
+export YEAR_DIR=${ENTRY_PATH%%/*}
+if [[ -z $YEAR_DIR ]]; then
+    echo "$0: ERROR: arg not in YYYY/dir form: $ENTRY_PATH" 1>&2
+    exit 3
+fi
+export ENTRY_DIR=${ENTRY_PATH#*/}
+if [[ -z $ENTRY_DIR ]]; then
+    echo "$0: ERROR: arg: $ENTRY_PATH not in $YEAR_DIR/dir form: $ENTRY_PATH" 1>&2
+    exit 3
+fi
+if [[ $ENTRY_DIR = */* ]]; then
+    echo "$0: ERROR: dir from arg: $ENTRY_PATH contains a /: $ENTRY_DIR" 1>&2
+    exit 3
+fi
+if [[ ! -d $YEAR_DIR ]]; then
+    echo "$0: ERROR: YYYY from arg: $ENTRY_PATH is not a directory: $YEAR_DIR" 1>&2
+    exit 3
+fi
+export ENTRY_ID="${YEAR_DIR}_${ENTRY_DIR}"
+export DOT_YEAR="$YEAR_DIR/.year"
+# Now that we have moved to topdir, form and verify YYYY_DIR is a writable directory
+export YYYY_DIR="$YEAR_DIR/$ENTRY_DIR"
+if [[ ! -e $YYYY_DIR ]]; then
+    echo "$0: ERROR: YYYY/dir from arg: $ENTRY_PATH does not exist: $YYYY_DIR" 1>&2
+    exit 7
+fi
+if [[ ! -d $YYYY_DIR ]]; then
+    echo "$0: ERROR: YYYY/dir from arg: $ENTRY_PATH is not a directory: $YYYY_DIR" 1>&2
+    exit 7
+fi
+if [[ ! -w $YYYY_DIR ]]; then
+    echo "$0: ERROR: YYYY/dir from arg: $ENTRY_PATH is not a writable directory: $YYYY_DIR" 1>&2
+    exit 7
+fi
+
+# print running info if verbose
+#
+# If -v 3 or higher, print exported variables in order that they were exported.
+#
+if [[ $V_FLAG -ge 3 ]]; then
+    echo "$0: debug[3]: VERSION=$VERSION" 1>&2
+    echo "$0: debug[3]: NAME=$NAME" 1>&2
+    echo "$0: debug[3]: V_FLAG=$V_FLAG" 1>&2
+    echo "$0: debug[3]: GIT_TOOL=$GIT_TOOL" 1>&2
+    echo "$0: debug[3]: TOPDIR=$TOPDIR" 1>&2
+    echo "$0: debug[3]: REPO_URL=$REPO_URL" 1>&2
+    echo "$0: debug[3]: NOOP=$NOOP" 1>&2
+    echo "$0: debug[3]: DO_NOT_PROCESS=$DO_NOT_PROCESS" 1>&2
+    echo "$0: debug[3]: ENTRY_PATH=$ENTRY_PATH" 1>&2
+    echo "$0: debug[3]: REPO_NAME=$REPO_NAME" 1>&2
+    echo "$0: debug[3]: CD_FAILED=$CD_FAILED" 1>&2
+    echo "$0: debug[3]: TOP_FILE=$TOP_FILE" 1>&2
+    echo "$0: debug[3]: BIN_PATH=$BIN_PATH" 1>&2
+    echo "$0: debug[3]: BIN_DIR=$BIN_DIR" 1>&2
+    echo "$0: debug[3]: YEAR_DIR=$YEAR_DIR" 1>&2
+    echo "$0: debug[3]: ENTRY_DIR=$ENTRY_DIR" 1>&2
+    echo "$0: debug[3]: ENTRY_ID=$ENTRY_ID" 1>&2
+    echo "$0: debug[3]: DOT_YEAR=$DOT_YEAR" 1>&2
+    echo "$0: debug[3]: YYYY_DIR=$YYYY_DIR" 1>&2
+fi
+
+# -N stops early before any processing is performed
+#
+if [[ -n $DO_NOT_PROCESS ]]; then
+    if [[ $V_FLAG -ge 3 ]]; then
+	echo "$0: debug[3]: arguments parsed, -N given, exiting 0" 1>&2
+    fi
+    exit 0
+fi
+
+
+# verify that YEAR is already in .top
+#
+if ! grep -E -q "^$YEAR_DIR$" "$TOP_FILE"; then
+    echo "$0: ERROR: YEAR_DIR: $YEAR_DIR not found in: $TOP_FILE" 1>&2
+    echo "$0: notice: consider running: bin/new-year.sh $YEAR_DIR -v 1" 1>&2
+    exit 10
+fi
+
+
+# case: without -n
+#
+if [[ -z $NOOP ]]; then
+
+    # append entry directory path to .top
+    #
+    if [[ $V_FLAG -ge 3 ]]; then
+	echo "$0: debug[3]: appending YYYY_DIR: $YYYY_DIR to: $DOT_YEAR" 1>&2
+    fi
+    echo "$YYYY_DIR" >> "$DOT_YEAR"
+
+    # sort .year
+    #
+    if [[ $V_FLAG -ge 3 ]]; then
+	echo "$0: debug[3]: about to: sort -u $DOT_YEAR -o $DOT_YEAR" 1>&2
+    fi
+    sort -u "$DOT_YEAR" -o "$DOT_YEAR"
+    status="$?"
+    if [[ $status -ne 0 ]]; then
+	echo "$0: ERROR: sort -u $DOT_YEAR -o $DOT_YEAR failed," \
+	     "error code: $status" 1>&2
+	exit 11
+    fi
+
+    # firewall
+    #
+    if grep -E -q "^$YYYY_DIR$" "$DOT_YEAR"; then
+	if [[ $V_FLAG -ge 1 ]]; then
+	    echo "$0: debug[1]: YYYY_DIR: $YYYY_DIR is in: $DOT_YEAR" 1>&2
+	fi
+    else
+	echo "$0: ERROR: failed to add YYYY_DIR: $YYYY_DIR to: $DOT_YEAR" 1>&2
+	exit 11
+    fi
+
+# case: with -n
+#
+elif [[ $V_FLAG -ge 3 ]]; then
+    echo "$0: debug[3]: -n disabled adding YYYY_DIR: $YYYY_DIR to $DOT_YEAR" 1>&2
+fi
+
+
+# All Done!!! All Done!!! -- Jessica Noll, Age 2
+#
+exit 0
diff --git a/bin/index.html b/bin/index.html
index 8ef2e5739..07f311c41 100644
--- a/bin/index.html
+++ b/bin/index.html
@@ -433,6 +433,15 @@ that you use the <code>-h</code> option on it first.</p>
 <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/bin/md2html.cfg">bin/md2html.cfg</a> file but some of these tools can be directly
 invoked as well, should you wish to see their output or if you have some odd
 need to do so.</p>
+<div id="add-dir">
+<h3 id="add-dir.sh"><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/bin/add-dir.sh">add-dir.sh</a></h3>
+</div>
+<p>This tool is used my the <a href="../judges.html">Judges</a> as part of the final
+steps to announce a new winning IOCCC entry.</p>
+<p>For example:</p>
+<pre><code>    mkdir -p YYYY/dir
+    bin/add-dir.sh YYYY/dir</code></pre>
+<p>Here, <code>YYYY/dir</code> must the path to the winning IOCCC entry.</p>
 <div id="all-run">
 <h3 id="all-run.sh"><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/bin/all-run.sh">all-run.sh</a></h3>
 </div>