deluge method "zoho.crm.updateRecord()" not found

deluge method "zoho.crm.updateRecord()" not found

so, i've been following the deluge dev docs pretty closely for my own sake while writing custom functions in zoho crm. however, i've come across a conflicting dev doc that has be stumped. the dev docs ( web page) clearly calls out the new v2 of "update record" method as zoho.crm.updateRecord() but when i implement that in my custom functions, i continually get an error from deluge saying that updateRecord() is not a valid method. what's going on here? are the dev docs out of date or is my instance of crm not able to run on the v2 deluge API?

i see three versions of the update record method:
v2 = zoho.crm.updateRecord()
v1 = zoho.crm._updateRecord()
other version i don't know = zoho.crm.update()

currently, i'm using zoho.crm.update() and it's working okay but i want to be sure i'm using the latest and greatest deluge/api methods.