diff --git a/ChangeLog b/ChangeLog
index 1211cc7..6ee8d19 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+git clone git@dev.lovelyhq.com:libburnia/libisofs.git
+(to become libisofs-1.5.8 or higher)
+===============================================================================
+- no novelties yet -
+
+libisofs-1.5.6.pl01.tar.gz Fri Jun 09 2023
+===============================================================================
+* Bug fix: On non-GNU/Linux systems ssize_t was not defined in rockridge.h .
+           Report and fix proposal by Rui Chen
+
 libisofs-1.5.6.tar.gz Wed Jun 07 2023
 ===============================================================================
 * Bug fix: iso_write_opts_set_part_like_isohybrid() did not cause a MBR
@@ -17,7 +27,6 @@ libisofs-1.5.6.tar.gz Wed Jun 07 2023
   Proof-of-concept by Ivan Shmakov.
 * New API call iso_write_opts_set_max_ce_entries()
 
-
 libisofs-1.5.4.tar.gz Sat Jan 30 2021
 ===============================================================================
 * Bug fix: Large amounts of AAIP data or many long file names could cause with
diff --git a/libisofs/changelog.txt b/libisofs/changelog.txt
index 40480d8..d775281 100644
--- a/libisofs/changelog.txt
+++ b/libisofs/changelog.txt
@@ -933,7 +933,7 @@ configure.ac
 libisofs/libisofs.h
 Version leap to 1.5.6
 
-07 Jun 2023  []
+07 Jun 2023  [170318c]
 ChangeLog
 libisofs/changelog.txt
 Updated change log
@@ -956,6 +956,36 @@ Updated change log
 * Bug fix: Size of further CE area was calculated wrong if its CE entry ended
            exactly at a block boundary
 
+07 Jun 2023  [5a867c4]
+configure.ac
+libisofs/libisofs.h
+Version leap to 1.5.7
+
+  [master: ][branch 1.5.6.pl01: ]
+libisofs/rockridge.h
+ChangeLog
+libisofs/changelog.txt
+Bug fix: On non-GNU/Linux systems ssize_t was not defined in rockridge.h .
+         Report and fix proposal by Rui Chen
+         
+------------------------------- release - libisofs-1.5.6.pl01 - 09 Jun 2023
+* Bug fix: On non-GNU/Linux systems ssize_t was not defined in rockridge.h .
+           Report and fix proposal by Rui Chen
+
+  []
+libisofs/ecma119.c
+libisofs/fs_image.c
+libisofs/rockridge.c
+libisofs/stream.c
+
+  []
+README
+Updated copyright year in README
+
+
+
+------------------------------------ release - libisofs-1.5.8 -
+
 
 ------------------------------------------------------------------------
 Todo about iso_read_image_feature_named() :
diff --git a/libisofs/rockridge.h b/libisofs/rockridge.h
index 5649eb7..b03189d 100644
--- a/libisofs/rockridge.h
+++ b/libisofs/rockridge.h
@@ -41,6 +41,9 @@
 
 #include "ecma119.h"
 
+/* For ssize_t */
+#include <unistd.h>
+
 
 #define SUSP_SIG(entry, a, b) ((entry->sig[0] == a) && (entry->sig[1] == b))