diff --git a/ChangeLog b/ChangeLog
index 26a1654..07d4f7d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,25 @@
-git clone git@dev.lovelyhq.com:libburnia/libisofs.git
-(to become libisofs-1.5.4 or higher)
+libisofs-1.5.4.tar.gz Sat Jan 30 2021
 ===============================================================================
-- no novelties yet -
+* Bug fix: Big-Endian MIPS Volume Header boot file size was rounded up to
+           full 2048. Thanks René Rebe.
+* Bug fix: El Torito production failed if no catalog path is given and the
+           first boot image path contains no slash
+* Bug fix: zisofs production was wrong on big-endian machines
+* Bug fix: Apple Partition Map entries wrote uninitialized data
+* Bug fix: Appended APM partitions without HFS+ production had start and size 1
+* Switched to usage of libjte-2.0.0
+* Implemented production and reading of zisofs2 for files larger than 4 GiB - 1.
+* New struct iso_zisofs_ctrl version 2
+* New API call iso_stream_get_zisofs_par()
+* New API call iso_stream_zisofs_discard_bpt()
+* New API call iso_image_zisofs_discard_bpt()
+* New flag bits 8 to 15 in API call iso_node_zf_by_magic()
+* New API call iso_zisofs_ctrl_susp_z2()
+* New API call iso_read_opts_set_joliet_map(), new default joliet_map=stripped
+* New API calls iso_read_image_features_tree_loaded() and
+  iso_read_image_features_rr_loaded()
 
-libisofs-1.5.0.tar.gz Sat Oct 26 2019
+libisofs-1.5.2.tar.gz Sat Oct 26 2019
 ===============================================================================
 * New API calls iso_write_opts_set_part_type_guid(),
   iso_write_opts_set_iso_type_guid()
diff --git a/libisofs/changelog.txt b/libisofs/changelog.txt
index bceb865..bf77a50 100644
--- a/libisofs/changelog.txt
+++ b/libisofs/changelog.txt
@@ -505,11 +505,268 @@ configure.ac
 libisofs/libisofs.h
 Version leap to 1.5.3
 
-27 Oct 2019  []
+27 Oct 2019  [560c116]
 ChangeLog
 libisofs/changelog.txt
 Updated change log
 
+28 Oct 2019  [dc3d82c]
+libisofs/libisofs.h
+libisofs/node.h
+libisofs/node.c
+libisofs/builder.h
+libisofs/tree.c
+libisofs/find.c
+libisofs/image.h
+libisofs/fs_local.c
+libisofs/fs_image.c
+libisofs/ecma119.h
+libisofs/ecma119.c
+libisofs/joliet.c
+libisofs/iso1999.c
+libisofs/eltorito.c
+libisofs/rockridge.h
+libisofs/rockridge.c
+libisofs/ecma119_tree.c
+libisofs/util_rbtree.c
+libisofs/system_area.h
+libisofs/system_area.c
+libisofs/make_isohybrid_mbr.c
+libisofs/buffer.h
+libisofs/buffer.c
+libisofs/md5.c
+libisofs/stream.h
+libisofs/util.h
+libisofs/util.c
+libisofs/libiso_msgs.h
+libisofs/messages.c
+libisofs/aaip_0_2.h
+libisofs/aaip_0_2.c
+libisofs/aaip-os-linux.c
+libisofs/aaip-os-freebsd.c
+doc/susp_aaip_2_0.txt
+doc/checksums.txt
+doc/boot_sectors.txt
+Fixed spelling errors found by fossies.org with codespell
+
+30 Oct 2019  [773be79]
+libisofs/libisofs.h
+libisofs/system_area.c
+libisofs/buffer.c
+libisofs/ecma119.h
+Fixed more spelling errors found by fossies.org with codespell
+
+24 Nov 2019  [c1d9639]
+configure.ac
+libisofs/libisofs.h
+Switched to usage of libjte-2.0.0
+
+26 Nov 2019  [ac24887]
+configure.ac
+Re-enabled variable LT_RELEASE in configure.ac. Disabling was unintentional.
+
+13 Jun 2020  [c84f6ae]
+libisofs/libisofs.h
+Removed a germanism from description of iso_image_get_session_md5
+
+13 Jun 2020  [6ca841e]
+libisofs/fs_local.c
+libisofs/fs_image.c
+Reacted on compiler warnings of Debian Sid
+
+13 Jun 2020  [69e332d]
+libisofs/libisofs.h
+libisofs/messages.c
+libisofs/hfsplus.c
+New error code ISO_HFSPLUS_TOO_MANY_FILES instead of ISO_MANGLE_TOO_MUCH_FILES
+
+07 Jul 2020  [gitlab 2384800] [gitea b0230b6]
+libisofs/system_area.c
+Changed strncpy() to memcpy() in order to please static analyzers
+
+07 Jul 2020  [gitlab 30a2e85] [gitea f962d0d]
+libisofs/system_area.c
+Bug fix: Big-Endian MIPS Volume Header boot file size was rounded up to full 2048. Thanks René Rebe.
+
+21 Sep 2020  [d297ce3]
+libisofs/util.c
+Prevented time rollover outside year intervals 1900-2155 and 1-9999
+
+14 Oct 2020  [b107443]
+libisofs/libisofs.h
+libisofs/libisofs.ver
+libisofs/fs_image.c
+libisofs/messages.c
+libisofs/node.h
+libisofs/node.c
+libisofs/rockridge.h
+libisofs/rockridge.c
+libisofs/rockridge_read.c
+libisofs/stream.h
+libisofs/stream.c
+libisofs/util.h
+libisofs/util.c
+libisofs/filters/zisofs.c
++ doc/zisofs2_format.txt
+Implemented production and reading of zisofs2 for files larger than 4 GiB - 1.
+New API call iso_stream_get_zisofs_par(). New struct iso_zisofs_ctrl version 2.
+
+15 Oct 2020  [f291e37]
+libisofs/filters/zisofs.c
+Fixed wrong start block pointer of zisofs2 compression
+
+17 Oct 2020  [2ca3b29]
+libisofs/libisofs.h
+libisofs/messages.c
+libisofs/filters/zisofs.c
+New iso_zisofs_ctrl parameter .block_number_target
+
+18 Oct 2020  [239ba69]
+libisofs/filters/zisofs.c
+libisofs/fs_image.c
+Accepting zisofs2 algorithms 2 to 5 for ZF by magic, but not for decompression
+
+22 Oct 2020  [cc2e0e3]
+libisofs/libisofs.h
+libisofs/filters/zisofs.c
+New iso_zisofs_ctrl parameters bpt_discard_file_blocks , bpt_discard_free_ratio
+
+25 Oct 2020  [80449f0]
+libisofs/libisofs.h
+libisofs/libisofs.ver
+libisofs/filters/zisofs.c
+libisofs/image.c
+New API calls iso_stream_zisofs_discard_bpt() and iso_image_zisofs_discard_bpt()
+
+26 Oct 2020  [d5ffecf]
+libisofs/filters/zisofs.c
+Silenced a compiler warning if zlib is not enabled
+
+27 Oct 2020  [dc61e7d]
+libisofs/libisofs.h
+libisofs/node.c
+New flag bits 8 to 15 in API call iso_node_zf_by_magic()
+
+29 Oct 2020  [2ac62f0]
+libisofs/filters/zisofs.c
+Fixed header size of ZF entries made for zisofs2 files compressed by libisofs
+
+29 Oct 2020  [46186e5]
+doc/zisofs2_format.txt
+Added Z2 System Use Entry Format to zisofs2 specs
+
+29 Oct 2020  [9605bbe]
+libisofs/libisofs.h
+libisofs/libisofs.ver
+libisofs/rockridge.c
+libisofs/fs_image.c
+libisofs/rockridge_read.c
+libisofs/filters/zisofs.c
+New API call iso_zisofs_ctrl_susp_z2()
+
+29 Oct 2020  [8d70c75]
+Makefile.am
+libisofs/rockridge.c
+libisofs/rockridge_read.c
+Added doc/zisofs2_format.txt to EXTRA_DIST
+
+29 Oct 2020  [b7a90c5]
+libisofs/libisofs.h
+Corrected description of new call iso_zisofs_ctrl_susp_z2()
+
+31 Oct 2020  [5a98a4c]
+libisofs/fs_image.c
+Corrected declaration of ziso_add_osiz_filter(). (Lapse in commit b107443)
+
+07 Nov 2020  [b068764]
+libisofs/eltorito.c
+Bug fix: El Torito production failed if no catalog name was given and the
+boot image path contains no slash
+
+07 Nov 2020  [ac9d553]
+libisofs/eltorito.c
+Fixed a new bug introduced with previous commit
+
+13 Nov 2020  [1d5566f]
+README
+Changed Public contact from libburn-hackers@pykix.org to bug-xorriso@gnu.org
+
+13 Nov 2020  [7e3b01b]
+libisofs/system_area.c
+Bug fix: Apple Partition Map entries wrote uninitialized data 
+
+13 Nov 2020  [daaee5e]
+libisofs/hfsplus.c 
+Fixed access to packed members of struct hfsplus_volheader.
+Thanks Felipe Franciosi.
+
+13 Nov 2020  [92af0c9]
+libisofs/system_area.c
+Adjusted fix 7e3b01b after learning that the bug stems from b0230b6 (unreleased)
+
+14 Nov 2020  [29cc5c8]
+libisofs/system_area.c
+Prevented writing of undesired bytes in make_sun_disk_label() (commit b0230b6)
+
+15 Nov 2020 [cece6fb]
+libisofs/ecma119.c
+libisofs/hfsplus.h
+libisofs/hfsplus.c
+libisofs/system_area.c
+Bug fix: Appended APM partitions without HFS+ production had start and size 1
+
+22 Nov 2020  [c068a19]
+libisofs/libisofs.h
+libisofs/libisofs.ver
+libisofs/fs_image.c
+New API call iso_read_opts_set_joliet_map(), new default joliet_map=stripped
+
+26 Nov 2020  [8f3ff65]
+libisofs/ecma119.c
+libisofs/system_area.h
+libisofs/system_area.c
+Corrected size of GPT protective MBR partition with multi-session emulation
+
+07 Dec 2020  [6241141]
+libisofs/libisofs.h
+libisofs/libisofs.ver
+libisofs/fs_image.c
+New API calls iso_read_image_features_tree_loaded() and
+iso_read_image_features_rr_loaded()
+
+07 Dec 2020  [2a20e93]
+libisofs/fs_image.c
+Small correction to commit 6241141
+
+30 Jan 2021  [4219bf4]
+configure.ac
+libisofs/libisofs.h
+Version leap to 1.5.4.
+
+30 Jan 2021  []
+ChangeLog
+libisofs/changelog.txt
+Updated change log
+
+------------------------------------ release - libisofs-1.5.4 - 30 Jan 2021
+* Bug fix: Big-Endian MIPS Volume Header boot file size was rounded up to
+           full 2048. Thanks René Rebe.
+* Bug fix: El Torito production failed if no catalog path is given and the
+           first boot image path contains no slash
+* Bug fix: zisofs production was wrong on big-endian machines
+* Bug fix: Appended APM partitions without HFS+ production had start and size 1
+* Switched to usage of libjte-2.0.0
+* Implemented production and reading of zisofs2 for files larger than 4 GiB - 1.
+* New struct iso_zisofs_ctrl version 2
+* New API call iso_stream_get_zisofs_par()
+* New API call iso_stream_zisofs_discard_bpt()
+* New API call iso_image_zisofs_discard_bpt()
+* New flag bits 8 to 15 in API call iso_node_zf_by_magic()
+* New API call iso_zisofs_ctrl_susp_z2()
+* New API call iso_read_opts_set_joliet_map(), new default joliet_map=stripped
+* New API calls iso_read_image_features_tree_loaded() and
+  iso_read_image_features_rr_loaded()
+
 
 ------------------------------------ release - libisofs-      -