diff --git a/ChangeLog b/ChangeLog
index f5a0232..b2beda0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,12 +1,14 @@
 bzr branch lp:libisofs/for-libisoburn (to become libisofs-1.3.0.tar.gz)
 ===============================================================================
-* Bug fix: Unspecified Expiration Time and Effective Time of ISO volume was
-           represented by 0-bytes rather than ASCII '0' digits.
-* Bug fix: Reserved and unused fields of APM entries were not zeroed.
 * New option bits with el_torito_set_isolinux_options() and
   iso_write_opts_set_system_area() to control GRUB2 patching of
   boot image and MBR.
 * New API calls iso_image_set_sparc_core() and iso_image_get_sparc_core().
+* Bug fix: Unspecified Expiration Time and Effective Time of ISO volume was
+           represented by 0-bytes rather than ASCII '0' digits.
+* Bug fix: Reserved and unused fields of APM entries were not zeroed.
+* Bug fix: GPT header CRC was computed from all 512 bytes rather than from 92.
+* Bug fix: The protective MBR partition for GPT started at block 0 instead of 1.
 
 
 libisofs-1.2.8.tar.gz Mon Mar 18 2013
diff --git a/doc/boot_sectors.txt b/doc/boot_sectors.txt
index 416097f..63f7318 100644
--- a/doc/boot_sectors.txt
+++ b/doc/boot_sectors.txt
@@ -906,13 +906,18 @@ PReP boots via a MBR partition containing only raw ELF and having type 0x41.
 
 Sources:
     Mail conversations with Vladimir Serbinenko.
-
+    http://stuff.mit.edu/afs/sipb/contrib/doc/specs/protocol/chrp/chrp1_7a.pdf
 
 CHRP is marked by an MBR partition entry of type 0x96 spanning the whole
 ISO 9660 image.
 
+The specs in chrp1_7a.pdf promise that CHRP also recognizes ISO 9660 file
+systems on unpartitioned disks. (See 11.1.1. Media Layout Format)
+
+Vladimir Serbinenko stated:
 PReP boot may be preferable. At least it can co-exist with other partitions
-in the ISO image.
+in the ISO image [without causing overlapping between partitions].
+
 
 
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