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GNU ddrescue 1.27 released

From: Antonio Diaz Diaz
Subject: GNU ddrescue 1.27 released
Date: Thu, 26 Jan 2023 20:02:04 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv: Gecko/20110420 SeaMonkey/2.0.14

I am pleased to announce the release of GNU ddrescue 1.27.

GNU ddrescue is a data recovery tool. It copies data from one file or block device (hard disc, cdrom, etc) to another, trying to rescue the good parts first in case of read errors.

GNU Ddrescuelog is a tool that manipulates ddrescue mapfiles, shows mapfile contents, converts mapfiles to/from other formats, compares mapfiles, tests rescue status, and can delete a mapfile if the rescue is done.

The homepage is at

The sources can be downloaded from or from your favorite GNU mirror.

The sha256sum is:
38c80c98c5a44f15e53663e4510097fd68d6ec20758efdf3a925037c183232eb ddrescue-1.27.tar.lz

This release is also GPG signed. You can download the signature by appending '.sig' to the URL. If the 'gpg --verify' command fails because you don't have the required public key, then run this command to import it:

  gpg --recv-keys 8FE99503132D7742

Key fingerprint = 1D41 C14B 272A 2219 A739  FA4F 8FE9 9503 132D 7742

Changes in version 1.27:

* A deadlock in command mode when stdout is fully buffered has been fixed by flushing stdout after executing each command. (Reported by Jeffrey Bosboom).

* The new option '-W, --compare-before-write' has been added. It omits superfluous writes in rescue mode.
(Suggested by Kajetan Harald Hinner and Petr Slansky).

* Diagnostics caused by invalid arguments to command line options now show the argument and the name of the option.

  * The option synonym '--direct' has been removed and is no longer recognized.

  * 'long long' is now used instead of 'long' for time variables.

  * A missing '#include <cstdlib>' has been added.

Please send bug reports and suggestions to

Antonio Diaz, GNU ddrescue author and maintainer.

If you care about data safety and long-term archiving, please consider using lzip. See and Thanks.

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