the 1.6 branch is very close to end-of-life and will be deprecated very soon. it will be replaced by the 1.8 branch (current 1.7) at which time 1.6 will no longer be supported. should there be a security problem arise in 1.6, it may be patched, but a new release for 1.6 is not scheduled.
so on the long run you will have to look at solving your problem because if everything goes well there may not even be a 1.6 anymore by the end of the year.