Understanding updates information

[SoFl W]

I received an update notice from the Update manager and I am wondering why the differences between the ubuntu versions and the author's version.

Update Manager:

Changes for the versions:
1.7.0-1ubuntu2
1.7.0-1ubuntu2.1

Version 1.7.0-1ubuntu2.1:

* SECURITY UPDATE: properly verify path for the 'sudoedit' pseudo-command
in match.c
- http://sudo.ws/repos/sudo/rev/88f3181692fe
- CVE-2010-0426

From http://www.gratisoft.us/sudo

The current stable version of sudo is 1.7.2p4.

[zvacet]

...why the differences between the ubuntu versions and the author's version.

Because latest version is not in the repos jet.Update that package.