The entire PS3 3.40 SDK has been leaked by PlayStation 3 scene group Duplex.

This news comes a few weeks after the recent Sony PS3 SDK GCC Cell OS LV2 Toolchain Sources leak, and for those following... previously the PS3 SDK 3.41 Toolchain & RAF Compiler, a Differences Comparison, and the PS3 SDK 1.92 was leaked alongside a guide on how to set it up.

The official release name is PS3.Full.3.40.SDK.PS3-DUPLEX and it's 2.53GB in size. It includes all the tools and samples
missing in the previously leaked SDK which was only 50mb in size.