API V1 to V2 - UpdateRecords

Hello There,

I am currently updating account information using API 1.0:

https://crm.zoho.com/crm/private/xml/Accounts/updateRecords?&version=2&authtoken= + authotoken + values.

With this I can just use our AUTHTOKEN to make updateRecords API calls.

After reading the documentation for API 2.0, I was able to update account records using json, https://www.zohoapis.com/crm/v2/Accounts and still using the our old AUTHTOKEN (without using OAuth 2.0).

Is this still going to work after API 1.0 goes away? or we will need to use OAuth2.0 to update records?