Linden Lab advises urgent upgrade from 1.19.0(4)

For those of you who downloaded and are running the 1.19.0(4) release of the Second Life viewer that became available yesterday, Linden Lab advises that there is an unspecified security problem.

Linden Lab have rushed out a fixed version, 1.19.0(5), which you can get from the usual places right away. Alternatively you can use an earlier viewer – just not the 1.19.0(4) version. Linden Lab says they are not aware of any actual exploitation of the security flaw at this stage.