Comment 2 for bug 978012

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Theodore Ts'o (tytso) wrote : Re: Please merge e2fsprogs 1.42.2-2 (main) from Debian unstable (main)

The biggest deal why Ubuntu should strongly consider going to 1.42.2-2 is a number of discard fixes that can end up accidentally destroy file system data; there was a bug that could accidentally cause part of the inode table containing in-use inodes to get discarded, and mke2fs -n would trigger a discard when it shouldn't. Fortunately, using discard is not the default; but users tend to get cranky when their file system gets trashed...

There are a large number of other bugs that have been fixed since 1.42-1; see the RELEASE-NOTES file or the debian/changelog file for more details.

Also note that 1.42.2-2 in debian has a number of bug fixes above and beyond the upstream 1.42.2. 1.42.2-2 is basically what will end up becoming 1.42.3 pending getting updated translations from the Translation Project. (Plus any emergency bug fixes that gets discovered in Debian unstable, although I don't expect much since the number of changes between 1.42.2 and 1.42.3 is going to be minimal.)