diff --git a/xorriso/changelog.txt b/xorriso/changelog.txt
index e505dc87..6f33744c 100644
--- a/xorriso/changelog.txt
+++ b/xorriso/changelog.txt
@@ -20517,13 +20517,28 @@ test/merge_debian_isos.1
 test/merge_debian_isos.info
 Version leap to libisoburn-1.5.7
 
-07 Jun 2023  []
+07 Jun 2023  [a22f6b8]
 ChangeLog
 xorriso/changelog.txt
 Updated change log and web page
 
 ------------------------------------ cycle  - xorriso-1.5.7 - 2023.06.07.200919
 
+------------------------------ release - xorriso-1.5.6.pl01 - 2023.06.12.080001
+* Bug fix: On non-GNU/Linux systems ssize_t was not defined in libisofs file
+           rockridge.h . Report and fix proposal by Rui Chen.
+
+------------------------------------ cycle  - xorriso-1.5.7 - 2023.06.12.125306
+* Bug fix: On non-GNU/Linux systems ssize_t was not defined in libisofs file
+           rockridge.h . Report and fix proposal by Rui Chen.
+
+  []
+ChangeLog
+xorriso/xorriso_eng.html
+xorriso/changelog.txt
+Updated change log and web page
+
+
   []
 ChangeLog
 xorriso/xorriso_eng.html
diff --git a/xorriso/xorriso_eng.html b/xorriso/xorriso_eng.html
index 3daa6f76..5bd3fb83 100644
--- a/xorriso/xorriso_eng.html
+++ b/xorriso/xorriso_eng.html
@@ -507,23 +507,23 @@ files or trees to disk:
 <P>
 <DL>
 <DT><H3>Download as source code (see README):</H3></DT>
-<DD><A HREF="xorriso-1.5.6.tar.gz">xorriso-1.5.6.tar.gz</A>
+<DD><A HREF="xorriso-1.5.6.pl01.tar.gz">xorriso-1.5.6.pl01.tar.gz</A>
 (2780 KiB).
 </DD>
-<DD>(Released 07 Jun 2023)</DD>
-<DD><A HREF="xorriso-1.5.6.tar.gz.sig">xorriso-1.5.6.tar.gz.sig</A></DD>
+<DD>(Released 12 Jun 2023)</DD>
+<DD><A HREF="xorriso-1.5.6.pl01.tar.gz.sig">xorriso-1.5.6.pl01.tar.gz.sig</A></DD>
 <DD>
 (detached GPG signature for verification by either
 <BR>
 <KBD>wget https://ftp.gnu.org/gnu/gnu-keyring.gpg</KBD>
 <BR>
-<KBD>gpg --with-fingerprint --keyring ./gnu-keyring.gpg --verify xorriso-1.5.6.tar.gz.sig</KBD>
+<KBD>gpg --with-fingerprint --keyring ./gnu-keyring.gpg --verify xorriso-1.5.6.pl01.tar.gz.sig</KBD>
 <BR>
 or
 <BR>
 <KBD>gpg --keyserver keyserver.ubuntu.com --recv-keys ABC0A854</KBD>
 <BR>
-<KBD>gpg --with-fingerprint --verify xorriso-1.5.6.tar.gz.sig</KBD>
+<KBD>gpg --with-fingerprint --verify xorriso-1.5.6.pl01.tar.gz.sig</KBD>
 <BR>
 Both should confirm
 <BR>
@@ -538,7 +538,7 @@ Primary key fingerprint: 44BC 9FD0 D688 EB00 7C4D  D029 E9CB DFC0 ABC0 A854
 <DD>
 Also on <A HREF="http://www.gnu.org/prep/ftp.html">
 mirrors of ftp://ftp.gnu.org/gnu/ </A>
-as xorriso/xorriso-1.5.6.tar.gz
+as xorriso/xorriso-1.5.6.pl01.tar.gz
 </DD>
 </DL>
 </DD>
@@ -628,6 +628,16 @@ unrecognized content (pseudo-closed)
 </UL>
 </P>
 
+<P>
+Bug fixes towards deprecated version xorriso-1.5.6:
+<UL>
+<LI>
+On non-GNU/Linux systems ssize_t was not defined in libisofs file
+rockridge.h . Report and fix proposal by Rui Chen.
+</LI>
+</UL>
+</P>
+
 <P>
 Enhancements towards previous stable version xorriso-1.5.4.pl02:
 <UL>
@@ -716,7 +726,10 @@ cdrecord and mkisofs.</DT>
 <DT><H3>Development snapshot, version 1.5.7 :</H3></DT>
 <DD>Bug fixes towards stable version 1.5.6:
 <UL>
-<LI>- none yet -</LI>
+<LI>
+On non-GNU/Linux systems ssize_t was not defined in libisofs file
+rockridge.h . Report and fix proposal by Rui Chen.
+</LI>
 <!-- 
 <LI>- none yet -</LI>
  -->