DiskWarrior

DiskWarrior is a disk repair utility published by Alsoft for classic Mac OS and Mac OS X. However, it does not support rebuilding of APFS-formatted drives.
==History==
First released in November 1998, DiskWarrior supports data recovery and the rebuilding of HFS Plus (Mac OS Extended) drives.DiskWarrior! Available Now!, Alsoft. Archived 1998-12-06.
===Release history===
Version 	Released 	Note
Diskwarrior 1.0 	1998 November 	Able to rebuild, rescue, and optimize new disk directories from HFS and HFS Plus volumes instead of just trying to patch existing errors.
Diskwarrior 2.0 	2000 January 	Added DiskShield to prevent disk directory damage.
Diskwarrior 2.1 	2001 January 	Compares old directory with newly rebuilt directory to determines if there have been any changes.
Diskwarrior 3.0 	2003 May 	Introduces Mac OS X native directory rebuilding and hardware monitoring of impending drive device failure.
Diskwarrior 4.0 	2006 December 	First Universal binary release works with both Intel and PowerPC Macs. Includes a suite of tests to fix problems, repairs invalid file permissions, and identifies corrupted preference (.plist) files.
Diskwarrior 4.1 	2008 January 	Adds Mac OS X 10.5 (Leopard) compatibility along with ability to repair damaged directory hard links.
Diskwarrior 4.2 	2009 August 	Adds Mac OS X 10.6 (Snow Leopard) compatibility along with 64-bit support.
Diskwarrior 4.3 	2011 February 	Adds Mac OS X 10.7 (Lion) compatibility and improved repair performance.
Diskwarrior 4.4	2011 September 	Adds compatibility and performance improvements.
Diskwarrior 5.0 	2014 December 	Complete 64-bit rewrite with new architecture, features, interface, and performance improvements.A brief history of Alsoft, Alsoft. Archived 2017-01-16.
Diskwarrior 5.1 	2018 April 	Initial support for Apple File System (APFS) in Preview (no rebuilding).
Diskwarrior 5.2 	2018 September	Support for Secure Boot, macOS Mojave (10.14) and Catalina (10.15).Alsoft Product Releases, Alsoft. Archived 2020-01-12.
Diskwarrior 5.3 	TBA 	Support for macOS Big Sur (11) and Apple M1 processors.
===APFS support===
Alsoft stated that support for the Apple File System (APFS) in macOS High Sierra (10.13) and later has been delayed due to limited documentation about the drive format from Apple Inc. All new purchases require acknowledging a disclaimer of these circumstances.
==References==
==See also==
*Disk Utility, Apple's own utility included with macOS.
==External links==
*DiskWarrior at Alsoft
*What is DiskWarror at MagBlogWeb (2017-08-22)
Category:Drive utilities
Category:Classic Mac OS utilities
Category:Mac OS X utilities
Category:1998 introductions