dhcp-server script

RouterOS Scripting
1

I need script that will be executed after lease is assigned or deassigned.
Global variables leaseActIP, leaseActMAC, leaseServerName, leaseBound working in RouterOS 6.0/6.1, but not working in RouterOS 6.2/6.3. How can I get this variables in last OS versions?

2

in RouterOS 6.0/6.1 in dhcp-server need write lease-script=“/system script run script1”
but in RouterOS 6.2/6.3 in dhcp-server need write lease-script=“script1”