the memory allocator for most devices was switched to , which sacrifices some of jemalloc's high performance for additional security hardening features. Low-memory devices, however, are still permitted to use jemalloc.

Some 64-bit devices, like the Nexus 9, are effectively low-memory devices because of the extra space requirements of 64-bit pointers and hosting of two zygotes. (Zygote is an Android system service that is the parent of all Android application