# v2 to v3 changes - create v3 directory - Remove process.NetIOCounters (#429) - rename memoryLimitInBbytes JSON key in docker (#464) - fix cgroup filename (#464) - RLimit is now uint64 (#364) - mem.VirtualMemoryStat JSON fields capitalization (#545) - various JSON field name and some of Variable name have been changed. see v3migration.sh - Become private various kind of platform dependent values/constants such as process.GetWin32Proc. ### not yet - Determine if process is running in the foreground (#596)