Dotdeb.org has released MySQL 5.1.56 packages for Debian GNU/Linux

MySQL 5.1.56 packages are now available on Dotdeb :

for Debian 6.0 "Squeeze" and Debian 5.0 "Lenny"
for the amd64 and i386 architectures

Of course, the corresponding Pinba storage engine has been rebuilt (Squeeze only).

  MySQL 5.1.56 for Debian available