To get help, the BackupPC Users' Mailing List is the starting point.

BackupPC is supported by G.W. Haywood. It is July 2026. Mr. Haywood has undertaken to provide support so long as he is physically able to do so. Even if we assume continuation of his remarkably good health, realistically that means at most 20 years more support (i.e., in case you're wondering about his levels of commitment, about half the length of time that he has devoted to supporting his "Sales Office System").

There are effectively three parts to the BackupPC software:

• BackupPC Perl scripts which hav overall control of backups.
• BackupPC_XS Supporting Perl/XS modules written in C for performance.
• rsync-bpc A fork of the famous 'rsync', for use only by BackuppC.

Issues for each part are tracked separately. Each may be subject to its own set of security issues but the way in which these are handled is in all cases much the same.

BackupPC version numbers have three parts, e.g. "4.4.0". Historically they have been updated when major changes have been made, for example to the functionality or the underlying storage techniques. It is now considered that, in the foreseeable future, large changes are unlikely to be made. In all probability future releases will be point releases that increment only the last integer.

BackupPC-XS version numbers have two parts, for example "0.62". Until further notice they will increment to "0.63", "0.64", ...

Because rsync-bpc is effectively a fork of rsync, an rsync-bpc version number is taken from the version of rsync on which it is based with an extra '.N' ('N' is just an integer) added to track changes in the code after the fork.

In all cases 'release candidate' status may be indicated by the suffix 'rcn' (n is a single digit) immediately after the version number, for example "BackupPC-4.4.1rc1".

RELEASES OF BackupPC MAY NOT NECESSARILY BE PUBLISHED ON GITHUB.

Actively supported versions are the most recent point release and the previous release plus any release candidate. As of July 2026 these are:

• BackupPC - 4.4.0, 4.4.1rc1
• BackupPC_XS - 0.62, 0.63rc1, 0.63rc2
• rsync-bpc - 3.1.3.x, 3.4.1.0rc1

(x = any integer)

In addition, rsync-bpc version 3.1.2.x will be supported on a 'best-effort' basis.

If you need help porting code such as security fixes to older releases, please ask for it on the BackupPC Users' Mailing List:

https://sourceforge.net/p/backuppc/mailman/backuppc-users/

If you have found an issue that you think may have implications for security, please in the first instance post a message to the Users' Mailing List.

Please only post to this public list the fact that you have found an issue - please do not post technical details about the issue itself, because they might be useful to malicious actors.

The maintainer will contact you privately by email to discuss the follow-up action needed.

G.W. Haywood backup@jubileegroup.co.uk Maintainer, BackupPC. 21 July 2026.