I see in Rest api lot of restapi endpoint are depricated but still we can use them

[Deleted user]

and get the desired results , is there anytimeline when this endpoints will be completely non function , because we have used this endpoints in building our solution , and in rest api v2 not all the operation we can perform like downloading the attachments

[Nikola Perisic]

Hello @[deleted] 

You can see the list here: https://developer.atlassian.com/cloud/jira/platform/changelog/#

In search field type API and for filter choose Deprecation Notice.