diff --git a/.version b/.version
index 454db0eedc..0f4254e536 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-18.26.3
+18.26.4
diff --git a/CHANGES.html b/CHANGES.html
index 1496c8c925..44f22b3bad 120000
--- a/CHANGES.html
+++ b/CHANGES.html
@@ -1 +1 @@
-ChangeLogs/ChangeLog-18.26.3.html
\ No newline at end of file
+ChangeLogs/ChangeLog-18.26.4.html
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diff --git a/CHANGES.md b/CHANGES.md
index 98ffdaea4d..4faba49224 120000
--- a/CHANGES.md
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@@ -1 +1 @@
-ChangeLogs/ChangeLog-18.26.3.md
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+ChangeLogs/ChangeLog-18.26.4.md
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diff --git a/ChangeLogs/ChangeLog-18.26.4.html b/ChangeLogs/ChangeLog-18.26.4.html
new file mode 100644
index 0000000000..4d2e012a43
--- /dev/null
+++ b/ChangeLogs/ChangeLog-18.26.4.html
@@ -0,0 +1,48 @@
+<html><head><title>ChangeLog for asterisk-18.26.4</title></head><body>
+<h2>Change Log for Release asterisk-18.26.4</h2>
+<h3>Links:</h3>
+<ul>
+<li><a href="https://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-18.26.4.html">Full ChangeLog</a>  </li>
+<li><a href="https://github.com/asterisk/asterisk/compare/18.26.3...18.26.4">GitHub Diff</a>  </li>
+<li><a href="https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-18.26.4.tar.gz">Tarball</a>  </li>
+<li><a href="https://downloads.asterisk.org/pub/telephony/asterisk">Downloads</a>  </li>
+</ul>
+<h3>Summary:</h3>
+<ul>
+<li>Commits: 1</li>
+<li>Commit Authors: 1</li>
+<li>Issues Resolved: 0</li>
+<li>Security Advisories Resolved: 1</li>
+<li><a href="https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2">GHSA-557q-795j-wfx2</a>: Resource exhaustion (DoS) vulnerability: remotely exploitable leak of RTP UDP ports and internal resources</li>
+</ul>
+<h3>User Notes:</h3>
+<h3>Upgrade Notes:</h3>
+<h3>Developer Notes:</h3>
+<h3>Commit Authors:</h3>
+<ul>
+<li>George Joseph: (1)</li>
+</ul>
+<h2>Issue and Commit Detail:</h2>
+<h3>Closed Issues:</h3>
+<ul>
+<li>!GHSA-557q-795j-wfx2: Resource exhaustion (DoS) vulnerability: remotely exploitable leak of RTP UDP ports and internal resources</li>
+</ul>
+<h3>Commits By Author:</h3>
+<ul>
+<li>
+<h4>George Joseph (1):</h4>
+</li>
+<li>pjproject: Update bundled to 2.15.1.</li>
+</ul>
+<h3>Commit List:</h3>
+<ul>
+<li>pjproject: Update bundled to 2.15.1.</li>
+</ul>
+<h3>Commit Details:</h3>
+<h4>pjproject: Update bundled to 2.15.1.</h4>
+<p>Author: George Joseph
+  Date:   2025-08-25</p>
+<p>This resolves a security issue where RTP ports weren't being released
+  causing possible resource exhaustion issues.</p>
+<p>Resolves: #GHSA-557q-795j-wfx2</p>
+</body></html>
diff --git a/ChangeLogs/ChangeLog-18.26.4.md b/ChangeLogs/ChangeLog-18.26.4.md
new file mode 100644
index 0000000000..9f6327091e
--- /dev/null
+++ b/ChangeLogs/ChangeLog-18.26.4.md
@@ -0,0 +1,58 @@
+
+## Change Log for Release asterisk-18.26.4
+
+### Links:
+
+ - [Full ChangeLog](https://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-18.26.4.html)  
+ - [GitHub Diff](https://github.com/asterisk/asterisk/compare/18.26.3...18.26.4)  
+ - [Tarball](https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-18.26.4.tar.gz)  
+ - [Downloads](https://downloads.asterisk.org/pub/telephony/asterisk)  
+
+### Summary:
+
+- Commits: 1
+- Commit Authors: 1
+- Issues Resolved: 0
+- Security Advisories Resolved: 1
+  - [GHSA-557q-795j-wfx2](https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2): Resource exhaustion (DoS) vulnerability: remotely exploitable leak of RTP UDP ports and internal resources
+
+### User Notes:
+
+
+### Upgrade Notes:
+
+
+### Developer Notes:
+
+
+### Commit Authors:
+
+- George Joseph: (1)
+
+## Issue and Commit Detail:
+
+### Closed Issues:
+
+  - !GHSA-557q-795j-wfx2: Resource exhaustion (DoS) vulnerability: remotely exploitable leak of RTP UDP ports and internal resources
+
+### Commits By Author:
+
+- #### George Joseph (1):
+  - pjproject: Update bundled to 2.15.1.
+
+
+### Commit List:
+
+-  pjproject: Update bundled to 2.15.1.
+
+### Commit Details:
+
+#### pjproject: Update bundled to 2.15.1.
+  Author: George Joseph
+  Date:   2025-08-25
+
+  This resolves a security issue where RTP ports weren't being released
+  causing possible resource exhaustion issues.
+
+  Resolves: #GHSA-557q-795j-wfx2
+
diff --git a/README.html b/README.html
index 6cbfeec8ea..be5b8e628e 100644
--- a/README.html
+++ b/README.html
@@ -1,4 +1,4 @@
-<html><head><title>Readme for asterisk-18.26.3</title></head><body>
+<html><head><title>Readme for asterisk-18.26.4</title></head><body>
 <h1>The Asterisk(R) Open Source PBX</h1>
 <pre><code class="language-text">        By Mark Spencer &lt;markster@digium.com&gt; and the Asterisk.org developer community.
         Copyright (C) 2001-2021 Sangoma Technologies Corporation and other copyright holders.
