how do bug fixes get incorporated to packages?

[Mark Copper <mcopper@titaninterface.com>]

Hi,

I'm confused how a bug fix gets to a compiled package.

In this case the last entry in "Debian Bug report logs - #520406" starts
with

Source: libdbd-mysql-perl
Source-Version: 4.007-1+lenny1

We believe that the bug you reported is fixed in the latest version of
libdbd-mysql-perl, which is due to be installed in the Debian FTP archive:

libdbd-mysql-perl_4.007-1+lenny1.diff.gz
  to main/libd/libdbd-mysql-perl/libdbd-mysql-perl_4.007-1+lenny1.diff.gz
libdbd-mysql-perl_4.007-1+lenny1.dsc
  to main/libd/libdbd-mysql-perl/libdbd-mysql-perl_4.007-1+lenny1.dsc
libdbd-mysql-perl_4.007-1+lenny1_i386.deb
  to main/libd/libdbd-mysql-perl/libdbd-mysql-perl_4.007-1+lenny1_i386.deb


Is this available to users now?  The source at debian.org is still listed
as "Version: 4.007-1".

Thank you.

Mark