assign: use the set directive instead. [#assign x = y] is equivalent with [#set x = y] if x wasn't declared as scoped (i.e. local) variable. It's equivalent with otherwise [#assign x = y in .namespace]. That is, assign never sets local variables.

call: use user-defined directive call instead

comment: This is the old format of [#--...--]. Anything between the [#comment] and [/#comment] will be ignored.

foreach: it is a synonym of the list directive with slightly different parameter syntax. The syntax is [#foreach item in sequence] that is equivalent with [#list sequence as item].

global: use the set directive instead. [#global x = y] is equivalent with [#set x = y in .globals].

local: use the set directive instead combined with the var directive. [#local x = y] is equivalent with [#set x = y] if x was declared as scoped (i.e. local) variable with [#var x]. See more here: Template Author's Guide/Miscellaneous/Defining variables in the template

transform: use user-defined directive call instead

Legacy function: Originally function was used to define macros, and was deprecated in favor of the macro directive. As of FreeMarker 2.3, this directive is reintroduced with different meaning: it is used to define methods.