This week’s Lucee tutorial video is on Soft and Weak Structures. Check it out here:
Soft structs allow you to store elements in a struct that will not exist for the entire lifetime of the struct. The Garbage Collector can remove these elements if it runs out of memory. Weak references can be removed by the Garbage Collector at any time for no reason.
PS. these structure types are available in all Lucee versions, and were eventually added to ACF in v2016