diff --git a/releng/tag-changelogs b/releng/tag-changelogs
deleted file mode 100755
index 3db228c22e4..00000000000
--- a/releng/tag-changelogs
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/sh
-
-INET_ROOT=$(inet_root)
-
-# tag and release names...
-relname=inet-$(inet_version)
-escaped_relname=inet-$(inet_version | sed 's/\./\\\\./g')
-
-# check tag format
-echo "About to add --- $relname released --- line to ChangeLogs"
-echo "Enter to continue..."
-read tmp
-
-head="====== inet-4.x ======"
-
-# update ChangeLog files. (remove earlier marker line if exists, plus blank line below it)
-today=$(date '+20%y-%m-%d')
-line="$today  ------ $relname released ------"
-pattern="^[0-9-]\+  ------ $escaped_relname released ------"
-echo "Finding ChangeLogs..."
-changelogs=$(find . -name ChangeLog)
-echo "Updating ChangeLogs..."
-for i in $changelogs; do
-    echo "$head" > $i.b
-    echo "" >> $i.b
-    echo "$line" >> $i.b
-    echo "" >> $i.b
-    sed "/$head/{N;d;}" $i | sed "/$pattern/{N;d;}" >> $i.b || exit 1
-    mv $i.b $i || exit 1
-done
-echo "Done"
diff --git a/releng/update-changelogs b/releng/update-changelogs
deleted file mode 100755
index 24e0c81f39d..00000000000
--- a/releng/update-changelogs
+++ /dev/null
@@ -1,90 +0,0 @@
-#! /usr/bin/env python3
-#
-# This script automatically updates ChangeLog files from the git history.
-# The result may need some editing before committing back into the repo.
-#
-import re
-import os
-import string
-import subprocess
-
-# configuration
-since = '2023-03-14'  # empty means "since last entry in the ChangeLog file"
-fromtag = '' # alternative for 'since': from the given tag or branch
-
-entriesToIgnore = [
-"""2017-03-03  Rudolf Hornig
-
-        doc: changelogs updated and tagged
-
-""",
-]
-addMarker = True
-
-isWindows = ('OS' in os.environ) and os.environ['OS']=='Windows_NT'
-isMSYS = isWindows and ('OSTYPE' in os.environ) and os.environ['OSTYPE']=='msys'
-changedFiles = []
-
-def formatChangeLog(txt):
-    txt = re.sub('(?m)^    (    )?', "\t", txt) # spaces-to-tab
-    txt = re.sub('(?m)^\s+X-Committed-on-Branch:.*$', '', txt)  # remove X-Committed-on-Branch lines
-    txt = re.sub('(?m)^    (    )?', "\t", txt) # spaces-to-tab
-    txt = re.sub('(?m)[ \t]+$', '', txt)     # remove end-line spaces
-    txt = re.sub("(?s)\n\n+", "\n\n", txt)   # remove multiple blank lines
-    txt = txt.strip()+"\n"             # remove leading/trailing blank
-    return txt
-
-def updateChangeLogIn(dir):
-    global since, addMarker, isWindows, isMSYS, changedFiles
-
-    # read existing ChangeLog file
-    changelogFile = os.path.join(dir,'ChangeLog')
-    f = open(changelogFile, 'r')
-    oldLog = f.read()
-    f.close()
-
-    # if "since" is not set, find most recent entry in the log
-    if since=="" and fromtag=="":
-        since = '2000-01-01'
-        m = re.search('^\d\d\d\d-\d\d-\d\d', oldLog)
-        if m:
-            since = m.group(0)
-
-    # get appropriately formatted git log since that date
-    gitLogCommand = ['git', 'log', '--date=short', '--pretty=format:%ad  %an%n%n%w(81,8,8)%s%n%n%b']
-    if since!="": gitLogCommand +=  ['--since='+since]
-    if fromtag!="": gitLogCommand += [fromtag+"..HEAD"]
-    gitLogCommand += [dir]
-    newLog = subprocess.check_output(gitLogCommand, shell=(isWindows and not isMSYS)).decode("utf-8")
-    newLog = formatChangeLog(newLog)
-
-    newLog = re.sub('(?m)^    (    )?', "\t", newLog) # spaces-to-tab
-    for e in entriesToIgnore:
-        newLog = newLog.replace(formatChangeLog(e), "")     # remove ignorable entries
-
-    # if there's nothing new, skip the rest
-    if newLog.strip() == "":
-        print("    nothing new since", since)
-        return
-
-    print("   ", len(re.findall('(?m)^20', newLog)), "entrie(s) since", since)
-
-    # concatenate the two logs
-    marker = "----------- lines above this marker have been added from git log -----------\n\n" if addMarker else ""
-    updatedLog = newLog.strip() + "\n\n" + marker + oldLog.strip() + "\n"
-    updatedLog = formatChangeLog(updatedLog)
-
-    # write to disk
-    f = open(changelogFile, 'w')
-    f.write(updatedLog)
-    f.close()
-    changedFiles.append(changelogFile)
-
-# find those directories that contain ChangeLogs, and update them
-for root, dirs, files in os.walk('.'):
-    if 'ChangeLog' in files:
-        print(root, "contains ChangeLog, updating...")
-        updateChangeLogIn(root)
-print("\nUpdated ChangeLog files:\n", " ".join(changedFiles))
-
-