There are subset libraries of the older versions that are compatible with AC13.
For the US version if you go to Help>Downloads it lists the subset libraries for AC10 and AC11. The AC12 subset library is called the AC12 Migration library and is included in the AC13 installation.
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System
"Implementing Successful Building Information Modeling"