hdparm-6.6
	- fix build for Redhat/Fedora systems.
	- disable security commands when building on Redhat/Fedora,
	  as they lack the required data structures in the system headers.
hdparm-6.5
	- fix -I bugs from version 6.4.
hdparm-6.4
	- Makefile updates from Mikkel Krautz.
	- manpage updates / corrections.
	- fixed bug in -C code.
	- major updates to bring -I information up to current specs.
hdparm-6.3
	- added reporting of ATA revision numbers > 7
hdparm-6.2
	- eliminated short form (-F) of --security-freeze flag
	- completely revamped ATA Security Commands
	   (now they actually work sometimes)
	   courtesy of Leonard den Ottolander (a BIG thank-you!)
hdparm-6.1
	- fix BLKGETSIZE bug introduced in 6.0
	- man page clarification for -M (courtesy Stephen Gran)
hdparm-6.0
	- correct usage of BLKGETSIZE64 (returns bytes instead of sectors)
	- Added ATA Security switches (Benjamin Benz bbe[AT]heise[DOT]de)
hdparm-5.9
	- fix security-mode display (Franz Lehner)
	- fixed -W bug (Stephan Gran)
hdparm-5.8
	- added HDIO_SET_WCACHE support to -W
	- fixed double byteswap for big endian
	- fixed %lld warnings on 64-bit architectures
	- "hdparm -h" now goes to stdout instead of stderr
hdparm-5.7
	- fixed output of NULs in -I string fields
	- fixed big-endian -I crashes from 5.6
	- removed remains of defunct major-number checks
	- added support for BLKGETSIZE64 ioctl internally
	- added --direct flag to use O_DIRECT on device open
	- renamed -Istdin  to --Istdin
	- renamed -Istdout to --Istdout
	- allow other flags to follow any of: -I, --Istdin, --Istdout
hdparm-5.6
	- fixed reversed device names in idectl script
	- renamed readahead variables to avoid new glibc conflicts
	- added -Istdout flag to dump IDENTIFY data as hex
	- removed MAJOR number checks to open up hdpar for SATA-SCSI drivers
hdparm-5.5
	- added limited support for SCSI(-controlled) CDROM/optical drives
	- incorporated various -I clean-up patches from Maciej W. Rozycki
	- removed wordswap from capacity calculation: latest kenels already do it
	- fixed slight issues with ATA Revision display
	- added debian scripts from Stephan Gran
hdparm-5.4
	- fixed 2.5.67 compile error (LVM_BLK_MAJOR)
	- first attempt to support BIG_ENDIAN in identify.c
	- converted -T and -t to use minimum timing intervals (2 and 3 seconds)
	- fix device size overflow issue with -t
	- hdparm -I: fixed device size output for devices with reversed endian.
	- hdparm -i: added explanation for "*"
	- slight formatting change for -Tt outputs
	- fixed "(illegal value)" formatting
	- added CCISS_MAJOR
	- incorporated RedHat-8.0 and other patches
hdparm-5.3
	- get rid of malloc()
	- fix(?) BIG_ENDIAN problems
	- fix -tT to work on very small drives
	- fix -p output for parameters >= 100
hdparm-5.2
	- compile fixes for latest 2.5.xx kernels
	- moved -s from CFLAGS to LDFLAGS
	- fixed manpage formatting error from 5.1
	- -i was broken due to non-compatible changes in 2.5.xx
	- the fix for -i now breaks hdparm -i for really old kernels
hdparm-5.1
	- fixed segfault from -i on older drives
hdparm-5.0
	- updated -I to most recent ATA6 draft standard
	- added -Istdin to process input from /proc/ide/hd*/identify
	- CFLAGS Makefile fix from Kevin P. Fleming
	- -X mode names from Martin
	- tweaked #include's for Slackware
	- eliminate bogus "udma10" from -I output
	- formatting fixes for -I from various people
	- clean compile fixes from Steven Augart <steve@augart.com>
	- allow -d parameters other than 0/1 for special uses
	- removed busstate, acoustic, and nowerr from "-v" subset
	- support for Pacific Digital ADMA-100i
hdparm-4.9
	- fixed compile error with some kernels
hdparm-4.8
	- updated -Q to take queue depth as parameter value
hdparm-4.7
	- add -z option for BLKRRPART ("re-read partition table")
	- add -Q option to turn on/off tagged queuing
	- add -M option for acoustic feature set
	- allow ANY value for the parameter to '-p' (user beware!)
	- applied APM fixes from Gildas Bazin <gbazin@netcourrier.com>
hdparm-4.6
	- fix version numbers, update DMA notes in manpage
hdparm-4.5
	- ENDIAN tidyup, GETGEO fixes, Makefile fixes, mostly courtesy of Maciej W. Rozycki
hdparm-4.4
	- add -b option, courtesy of Tim Hockin
hdparm-4.3
	- display most fields as unsigned rather than signed values
hdparm-4.2
	- completely new format/implementation of "-I" with much more detail
	- code cleanups for newer libs/compilers
hdparm-4.1
	- merge some changes from Andre
	- code cleanups from Neil Macvicar and others
	- improved output from -i for newer features
	- incorporate RedHat-7.0 patches
hdparm-4.0
	- no such release
hdparm-3.9
	- added IDE_MAJOR[6-9]
	- nuked the LBAsects display (again!)
hdparm-3.8
	- fix display of drive capacity (Stephane Eranian <eranian@cello.hpl.hp.com>)
	- new -E "set cdrom speed" option (Matthias Oster <Matthias.Oster@eikon.tum.de>)
	- new -R and -U "(un)register hwif" options (Christian Lademann <cal@zls.de>)
	- new contrib subdirectory with contributed scripts from users.
	- support for display of newer PIO and DMA/UDMA modes
hdparm-3.7
	- use O_NONBLOCK for open(), to handle drives with media removed
	- make "HDIO_DRIVE_CMD failed" messages slightly more verbose
	- get rid of "HDIO_GET_MULTCOUNT failed" from -i on non-disks
hdparm-3.6
	- added new -V (version) option
	- removed confusing LBA "remapping" geometry calculation
	- small fix to "-I"
	- Courtesy of Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>:
		- added support for old XT drives
		- transfer display in kB/s rather than in MB/s for slow disks
		- fixed -v for SCSI disks
	- added -L to lock/unlock door of removeable harddisks
	- added udma modes 3,4,5..
	- updated Makefile to use "destdir" prefix -- Ytiddo <ytiddo@dicksonstreet.com>
hdparm-3.5
	- fixed compilation under older kernels
	- fixed udma mode info under older kernels
hdparm-3.4
	- added udma mode info
	- added support for SCSI_DISK_MAJOR{0-7}
	- fix -h (help) to show -y instead of -Y for "standby"
	- fix display of drive SerialNo: 20 chars instead of just 8
	- modify -C -y -Y to each try both possible command codes
	- add interpretations for use of -X to set UltraDMA modes
	- add -D for enable/disable drive defect-mgmt
hdparm-3.3
	- add -C, -y, and -Y flags for IDE power management
hdparm-3.2
	- force BLKFLSBUF after -T or -t  -- kmg@barco.com
	- fix minor -T/-t mixup in manpage -- hankedr@mail.auburn.edu
hdparm-3.1
	- permit "-p" with values larger than 5 (for cmd640 readahead)
	- updated version number on manpage (was way out of date!)
hdparm-3.0
	- always touch each sector in read_big_block() -- Jon Burgess
	- move cache timings to new -T option -- piercarl@sabi.demon.co.uk
hdparm-2.9:
	- updated author's email address
hdparm-2.8:
	- fixed compilation against older kernels
	- changed "KB" to "kB"
	- support for "-t" on "md" devices (from boris@xtalk.msk.su)
	- removed "Estimating raw driver speed" message from "-t"
	  because it is likely very incorrect on faster systems
	- added "-I" to re-issue IDENTIFY command to drive
hdparm-2.7:
	- fixed .lsm file
	- fixed "hdparm -c" (broken in 2.6) (kudos to clive@epos.demon.co.uk)
hdparm-2.6:
	- tidied up manpage
	- added support for HDIO_SET_PIO_MODE (kernel 1.3.61+)
	- reduced codesize by combining fprintf's in help
hdparm-2.5:
	- fixed -i display of eight character fwrev field
	- rearranged output of -v
hdparm-2.4:
	- added flag to turn on/off "using_dma" flag (kernel 1.3.22+)
	- added warnings about CMD-640B and RZ1000 bugs to manpage ("-u1")
	- cleaned up output from -c, added text interpretations
	- added -c functionality to -v
	- removed -a functionality from -v for scsi drives
	- added -n flag for ignoring the "write error" bit from a drive
	- moved binary from /usr/local/bin to /usr/local/sbin
	- added support for 3rd/4th IDE interfaces
hdparm-2.3:
	- added -c flag for controlling 32-bit chipset features with 1.2.9+
	- fixed error messages when -t used on SCSI drives
	- fixed date on man page to read 1995 rather than 1994 (late change)
hdparm-2.2:
	- fixed a memory problem in my PC, and now BLKFLSBUF seems safe again
	- fixed "help" line for "-v"
hdparm-2.1:
	- fixed formatting of DMA info line
	- added "(DANGEROUS)" to -u,-X,-W options in "hdparm -h"
	- changed order in which settings are applied:  placed standby last
hdparm-2.0:
	- added this file to the distribution
	- added -f and -q flags to hdparm.c and hdparm.8
	- added -N to gcc in makefile
	- changed installation paths to /usr/local/* in makefile
	- removed meaningless CPU% measures
	- removed -s and -x flags
	- added new -AKPSWXZ flags using new HDIO_DRIVE_CMD ioctl
	- removed BLKFLSBUF ioctl from everywhere except -t
	(there may be a kernel bug in the implementation of BLKFLSBUF
	 when used on an active (mounted rw) filesystem).
	- most features now require (E)IDE driver v2.6 or higher
	(ide-2.6.patch.65+.gz)