diff --git a/configure.ac b/configure.ac
index a2768970..c61e3f8e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([libisoburn], [1.5.4], [http://libburnia-project.org])
+AC_INIT([libisoburn], [1.5.5], [http://libburnia-project.org])
 AC_PREREQ([2.50])
 dnl AC_CONFIG_HEADER([config.h])	
 
@@ -24,7 +24,7 @@ dnl
 dnl These three are only copies to provide libtool with unused LT_RELEASE
 ISOBURN_MAJOR_VERSION=1
 ISOBURN_MINOR_VERSION=5
-ISOBURN_MICRO_VERSION=4
+ISOBURN_MICRO_VERSION=5
 
 dnl ISOBURN_VERSION=$ISOBURN_MAJOR_VERSION.$ISOBURN_MINOR_VERSION.$ISOBURN_MICRO_VERSION
  
@@ -38,8 +38,8 @@ dnl Generate libisoburn.so.1.x.y
 dnl SONAME will become LT_CURRENT - LT_AGE
 dnl 
 dnl ts C10130
-dnl This is the release version 1.5.4 = libisoburn.so.1.111.0
-dnl ### This is the development version after above stable release
+dnl ### This is the release version 1.5.4 = libisoburn.so.1.111.0
+dnl This is the development version after above stable release
 dnl LT_CURRENT++, LT_AGE++ have not happened yet.
 dnl ### LT_CURRENT++, LT_AGE++ has happened meanwhile.
 dnl
diff --git a/frontend/xorriso-tcltk b/frontend/xorriso-tcltk
index 03e1ba76..977322e7 100755
--- a/frontend/xorriso-tcltk
+++ b/frontend/xorriso-tcltk
@@ -23,7 +23,7 @@
 # And, well, a graphical widget set would be nice.
 
 
-set own_version "1.5.4"
+set own_version "1.5.5"
 
 # Minimum version of xorriso to be used as backend process.
 # Older versions of xorriso do not offer commands -msg_op and -launch_frontend
diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index 2fe2c145..ef4a1012 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -312,7 +312,7 @@ int isoburn_libburn_req(int *major, int *minor, int *micro);
 */
 #define isoburn_header_version_major  1
 #define isoburn_header_version_minor  5
-#define isoburn_header_version_micro  4
+#define isoburn_header_version_micro  5
 /** Note:
     Above version numbers are also recorded in configure.ac because libtool
     wants them as parameters at build time.
diff --git a/xorriso-dd-target/xorriso-dd-target b/xorriso-dd-target/xorriso-dd-target
index ab735678..9c86aacc 100755
--- a/xorriso-dd-target/xorriso-dd-target
+++ b/xorriso-dd-target/xorriso-dd-target
@@ -15,7 +15,7 @@
 # announces.
 
 xdt_print_version() {
-  echo "xorriso-dd-target , version 1.5.4 , 2021.01.30.150001"
+  echo "xorriso-dd-target , version 1.5.5 , 2021.01.30.200107"
 }
 
 
diff --git a/xorriso-dd-target/xorriso-dd-target.1 b/xorriso-dd-target/xorriso-dd-target.1
index 09a79808..555dbae8 100644
--- a/xorriso-dd-target/xorriso-dd-target.1
+++ b/xorriso-dd-target/xorriso-dd-target.1
@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO-DD-TARGET 1 "Version 1.5.4, Jan 30, 2021"
+.TH XORRISO-DD-TARGET 1 "Version 1.5.5, Jan 30, 2021"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
diff --git a/xorriso-dd-target/xorriso-dd-target.info b/xorriso-dd-target/xorriso-dd-target.info
index f20c811e..f0ef6344 100644
--- a/xorriso-dd-target/xorriso-dd-target.info
+++ b/xorriso-dd-target/xorriso-dd-target.info
@@ -14,7 +14,7 @@ END-INFO-DIR-ENTRY
 
 File: xorriso-dd-target.info,  Node: Top,  Next: Overview,  Up: (dir)
 
-xorriso-dd-target 1.5.4
+xorriso-dd-target 1.5.5
 ***********************
 
 xorriso-dd-target - Device evaluator and disk image copier for GNU/Linux
diff --git a/xorriso-dd-target/xorriso-dd-target.texi b/xorriso-dd-target/xorriso-dd-target.texi
index 9d5632b8..82f65567 100644
--- a/xorriso-dd-target/xorriso-dd-target.texi
+++ b/xorriso-dd-target/xorriso-dd-target.texi
@@ -1,7 +1,7 @@
 \input texinfo @c -*-texinfo-*-
 @c %**start of header
 @setfilename xorriso-dd-target.info
-@settitle GNU xorriso-dd-target 1.5.4
+@settitle GNU xorriso-dd-target 1.5.5
 @c %**end of header
 @c
 @c man-ignore-lines begin
@@ -48,7 +48,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISO-DD-TARGET 1 "Version 1.5.4, Jan 30, 2021"
+@c man .TH XORRISO-DD-TARGET 1 "Version 1.5.5, Jan 30, 2021"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -74,7 +74,7 @@ Permission is granted to distribute this text freely.
 @end copying
 @c man-ignore-lines end
 @titlepage
-@title Manual of GNU xorriso companion xorriso-dd-target 1.5.4
+@title Manual of GNU xorriso companion xorriso-dd-target 1.5.5
 @author Thomas Schmitt
 @page
 @vskip 0pt plus 1filll
@@ -83,7 +83,7 @@ Permission is granted to distribute this text freely.
 @contents
 @ifnottex
 @node Top
-@top xorriso-dd-target 1.5.4
+@top xorriso-dd-target 1.5.5
 @c man-ignore-lines 1
 
 @c man .SH NAME
diff --git a/xorriso/README_gnu_xorriso b/xorriso/README_gnu_xorriso
index 863c7358..69aa3c4a 100644
--- a/xorriso/README_gnu_xorriso
+++ b/xorriso/README_gnu_xorriso
@@ -4,7 +4,7 @@
 GNU xorriso. By Thomas Schmitt <scdbackup@gmx.net>
 Derived from and supported by libburnia-project.org, published via:
 http://www.gnu.org/software/xorriso/xorriso_eng.html
-http://www.gnu.org/software/xorriso/xorriso-1.5.4.tar.gz
+http://www.gnu.org/software/xorriso/xorriso-1.5.5.tar.gz
 Provided under GPL version 3 or later. No warranty.
 ------------------------------------------------------------------------------
 
@@ -49,10 +49,10 @@ Optional at compile time are:
 If they were present at compile time, then the optional libraries have to
 be present at runtime, too.
 
-Obtain xorriso-1.5.4.tar.gz, take it to a directory of your choice and do:
+Obtain xorriso-1.5.5.tar.gz, take it to a directory of your choice and do:
 
-    tar xzf xorriso-1.5.4.tar.gz
-    cd xorriso-1.5.4
+    tar xzf xorriso-1.5.5.tar.gz
+    cd xorriso-1.5.5
 
 Within that directory execute:
 
diff --git a/xorriso/configure_ac.txt b/xorriso/configure_ac.txt
index d0d9d985..495e3229 100644
--- a/xorriso/configure_ac.txt
+++ b/xorriso/configure_ac.txt
@@ -3,7 +3,7 @@
 # Copyright (c) 2007 - 2021 Thomas Schmitt <scdbackup@gmx.net>
 # Provided under GPL version 2 or later.
 
-AC_INIT([xorriso], [1.5.4], [http://libburnia-project.org])
+AC_INIT([xorriso], [1.5.5], [http://libburnia-project.org])
 AC_PREREQ([2.50])
 
 AC_CANONICAL_HOST
@@ -23,14 +23,14 @@ AC_DEFINE([Xorriso_standalonE], [])
 
 BURN_MAJOR_VERSION=1
 BURN_MINOR_VERSION=5
-BURN_MICRO_VERSION=4
+BURN_MICRO_VERSION=5
 AC_SUBST(BURN_MAJOR_VERSION)
 AC_SUBST(BURN_MINOR_VERSION)
 AC_SUBST(BURN_MICRO_VERSION)
 
 LIBISOFS_MAJOR_VERSION=1
 LIBISOFS_MINOR_VERSION=5
-LIBISOFS_MICRO_VERSION=4
+LIBISOFS_MICRO_VERSION=5
 AC_SUBST(LIBISOFS_MAJOR_VERSION)
 AC_SUBST(LIBISOFS_MINOR_VERSION)
 AC_SUBST(LIBISOFS_MICRO_VERSION)
diff --git a/xorriso/make_xorriso_standalone.sh b/xorriso/make_xorriso_standalone.sh
index f21c6bf1..3d55d8a6 100755
--- a/xorriso/make_xorriso_standalone.sh
+++ b/xorriso/make_xorriso_standalone.sh
@@ -50,7 +50,7 @@ create_gnu_xorriso="yes"
 current_dir=$(pwd)
 lone_dir="$current_dir"/"xorriso-standalone"
 
-xorriso_rev=1.5.4
+xorriso_rev=1.5.5
 # For unstable uploads and patch level 0 of stable releases:
 xorriso_pl=""
 # For higher patch levels of stable releases:
diff --git a/xorriso/xorrecord.1 b/xorriso/xorrecord.1
index 0422653c..8395153a 100644
--- a/xorriso/xorrecord.1
+++ b/xorriso/xorrecord.1
@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRECORD 1 "Version 1.5.4, Jan 30, 2021"
+.TH XORRECORD 1 "Version 1.5.5, Jan 30, 2021"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
diff --git a/xorriso/xorrecord.info b/xorriso/xorrecord.info
index a7618d52..cafad631 100644
--- a/xorriso/xorrecord.info
+++ b/xorriso/xorrecord.info
@@ -14,7 +14,7 @@ END-INFO-DIR-ENTRY
 
 File: xorrecord.info,  Node: Top,  Next: Overview,  Up: (dir)
 
-xorrecord 1.5.4
+xorrecord 1.5.5
 ***************
 
 xorrecord - Emulation of CD/DVD/BD program cdrecord by program xorriso
diff --git a/xorriso/xorrecord.texi b/xorriso/xorrecord.texi
index 7a7ed996..92f6225f 100644
--- a/xorriso/xorrecord.texi
+++ b/xorriso/xorrecord.texi
@@ -1,7 +1,7 @@
 \input texinfo @c -*-texinfo-*-
 @c %**start of header
 @setfilename xorrecord.info
-@settitle GNU xorrecord 1.5.4
+@settitle GNU xorrecord 1.5.5
 @c %**end of header
 @c
 @c man-ignore-lines begin
@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRECORD 1 "Version 1.5.4, Jan 30, 2021"
+@c man .TH XORRECORD 1 "Version 1.5.5, Jan 30, 2021"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -76,7 +76,7 @@ Permission is granted to distribute this text freely.
 @end copying
 @c man-ignore-lines end
 @titlepage
-@title Manual of GNU xorriso personality xorrecord 1.5.4
+@title Manual of GNU xorriso personality xorrecord 1.5.5
 @author Thomas Schmitt
 @page
 @vskip 0pt plus 1filll
@@ -85,7 +85,7 @@ Permission is granted to distribute this text freely.
 @contents
 @ifnottex
 @node Top
-@top xorrecord 1.5.4
+@top xorrecord 1.5.5
 @c man-ignore-lines 1
 
 @c man .SH NAME
diff --git a/xorriso/xorriso-tcltk.1 b/xorriso/xorriso-tcltk.1
index ec1cccb6..eaebb366 100644
--- a/xorriso/xorriso-tcltk.1
+++ b/xorriso/xorriso-tcltk.1
@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO-TCLTK 1 "Version 1.5.4, Jan 30, 2021"
+.TH XORRISO-TCLTK 1 "Version 1.5.5, Jan 30, 2021"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
diff --git a/xorriso/xorriso-tcltk.info b/xorriso/xorriso-tcltk.info
index 0a687ba9..c2ae3dd0 100644
Binary files a/xorriso/xorriso-tcltk.info and b/xorriso/xorriso-tcltk.info differ
diff --git a/xorriso/xorriso-tcltk.texi b/xorriso/xorriso-tcltk.texi
index 0cb84b57..5669a2d1 100644
--- a/xorriso/xorriso-tcltk.texi
+++ b/xorriso/xorriso-tcltk.texi
@@ -1,7 +1,7 @@
 \input texinfo @c -*-texinfo-*-
 @c %**start of header
 @setfilename xorriso-tcltk.info
-@settitle GNU xorriso-tcltk 1.5.4
+@settitle GNU xorriso-tcltk 1.5.5
 @c %**end of header
 @c
 @c man-ignore-lines begin
@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISO-TCLTK 1 "Version 1.5.4, Jan 30, 2021"
+@c man .TH XORRISO-TCLTK 1 "Version 1.5.5, Jan 30, 2021"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -76,7 +76,7 @@ Permission is granted to distribute this text freely.
 @end copying
 @c man-ignore-lines end
 @titlepage
-@title Manual of GNU xorriso frontend xorriso-tcltk 1.5.4
+@title Manual of GNU xorriso frontend xorriso-tcltk 1.5.5
 @author Thomas Schmitt
 @page
 @vskip 0pt plus 1filll
@@ -85,7 +85,7 @@ Permission is granted to distribute this text freely.
 @contents
 @ifnottex
 @node Top
-@top xorriso-tcltk 1.5.4
+@top xorriso-tcltk 1.5.5
 @c man-ignore-lines 1
 
 @c man .SH NAME
diff --git a/xorriso/xorriso.1 b/xorriso/xorriso.1
index 96e2b747..6edcc862 100644
--- a/xorriso/xorriso.1
+++ b/xorriso/xorriso.1
@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "Version 1.5.4, Jan 30, 2021"
+.TH XORRISO 1 "Version 1.5.5, Jan 30, 2021"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
diff --git a/xorriso/xorriso.h b/xorriso/xorriso.h
index 33d249cf..073ca857 100644
--- a/xorriso/xorriso.h
+++ b/xorriso/xorriso.h
@@ -74,7 +74,7 @@ struct XorrisO;
 */
 #define Xorriso_header_version_majoR  1
 #define Xorriso_header_version_minoR  5
-#define Xorriso_header_version_micrO  4
+#define Xorriso_header_version_micrO  5
 
 
 /** If needed: Something like ".pl01" to indicate a bug fix. Normally empty.
diff --git a/xorriso/xorriso.info b/xorriso/xorriso.info
index 7642930e..d8e7df2f 100644
--- a/xorriso/xorriso.info
+++ b/xorriso/xorriso.info
@@ -15,7 +15,7 @@ END-INFO-DIR-ENTRY
 
 File: xorriso.info,  Node: Top,  Next: Overview,  Up: (dir)
 
-GNU xorriso 1.5.4
+GNU xorriso 1.5.5
 *****************
 
 xorriso - creates, loads, manipulates and writes ISO 9660 filesystem
diff --git a/xorriso/xorriso.texi b/xorriso/xorriso.texi
index 5c132f61..b2d9e80f 100644
--- a/xorriso/xorriso.texi
+++ b/xorriso/xorriso.texi
@@ -1,7 +1,7 @@
 \input texinfo @c -*-texinfo-*-
 @c %**start of header
 @setfilename xorriso.info
-@settitle GNU xorriso 1.5.4
+@settitle GNU xorriso 1.5.5
 @c %**end of header
 @c
 @c man-ignore-lines begin
@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISO 1 "Version 1.5.4, Jan 30, 2021"
+@c man .TH XORRISO 1 "Version 1.5.5, Jan 30, 2021"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -77,7 +77,7 @@ Permission is granted to distribute this text freely.
 @end copying
 @c man-ignore-lines end
 @titlepage
-@title Manual of GNU xorriso 1.5.4
+@title Manual of GNU xorriso 1.5.5
 @author Thomas Schmitt
 @page
 @vskip 0pt plus 1filll
@@ -86,7 +86,7 @@ Permission is granted to distribute this text freely.
 @contents
 @ifnottex
 @node Top
-@top GNU xorriso 1.5.4
+@top GNU xorriso 1.5.5
 @c man-ignore-lines 1
 
 @c man .SH NAME
diff --git a/xorriso/xorriso_main.c b/xorriso/xorriso_main.c
index 45a2b150..ba6cf3da 100644
--- a/xorriso/xorriso_main.c
+++ b/xorriso/xorriso_main.c
@@ -111,7 +111,7 @@
 */
 #define Xorriso_req_majoR  1
 #define Xorriso_req_minoR  5
-#define Xorriso_req_micrO  4
+#define Xorriso_req_micrO  5
 
 
 static void yell_xorriso()
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 02964269..93a2062c 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2021.01.30.150001"
+#define Xorriso_timestamP "2021.01.30.200107"
diff --git a/xorriso/xorrisoburn.h b/xorriso/xorrisoburn.h
index 88f130b1..e21a7c05 100644
--- a/xorriso/xorrisoburn.h
+++ b/xorriso/xorrisoburn.h
@@ -19,7 +19,7 @@
 */
 #define xorriso_libisoburn_req_major  1
 #define xorriso_libisoburn_req_minor  5
-#define xorriso_libisoburn_req_micro  4
+#define xorriso_libisoburn_req_micro  5
 
 
 struct SpotlisT;          /* List of intervals with different read qualities */
diff --git a/xorriso/xorrisofs.1 b/xorriso/xorrisofs.1
index b9a0c405..816206df 100644
--- a/xorriso/xorrisofs.1
+++ b/xorriso/xorrisofs.1
@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISOFS 1 "Version 1.5.4, Jan 30, 2021"
+.TH XORRISOFS 1 "Version 1.5.5, Jan 30, 2021"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
diff --git a/xorriso/xorrisofs.info b/xorriso/xorrisofs.info
index 482b00d8..43daf3eb 100644
--- a/xorriso/xorrisofs.info
+++ b/xorriso/xorrisofs.info
@@ -14,7 +14,7 @@ END-INFO-DIR-ENTRY
 
 File: xorrisofs.info,  Node: Top,  Next: Overview,  Up: (dir)
 
-xorrisofs 1.5.4
+xorrisofs 1.5.5
 ***************
 
 xorrisofs - Emulation of ISO 9660 program mkisofs by program xorriso
diff --git a/xorriso/xorrisofs.texi b/xorriso/xorrisofs.texi
index 41f529c4..15417c4c 100644
--- a/xorriso/xorrisofs.texi
+++ b/xorriso/xorrisofs.texi
@@ -1,7 +1,7 @@
 \input texinfo @c -*-texinfo-*-
 @c %**start of header
 @setfilename xorrisofs.info
-@settitle GNU xorrisofs 1.5.4
+@settitle GNU xorrisofs 1.5.5
 @c %**end of header
 @c
 @c man-ignore-lines begin
@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISOFS 1 "Version 1.5.4, Jan 30, 2021"
+@c man .TH XORRISOFS 1 "Version 1.5.5, Jan 30, 2021"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -76,7 +76,7 @@ Permission is granted to distribute this text freely.
 @end copying
 @c man-ignore-lines end
 @titlepage
-@title Manual of GNU xorriso personality xorrisofs 1.5.4
+@title Manual of GNU xorriso personality xorrisofs 1.5.5
 @author Thomas Schmitt
 @page
 @vskip 0pt plus 1filll
@@ -85,7 +85,7 @@ Permission is granted to distribute this text freely.
 @contents
 @ifnottex
 @node Top
-@top xorrisofs 1.5.4
+@top xorrisofs 1.5.5
 @c man-ignore-lines 1
 
 @c man .SH NAME