How to identify which edition of salesforce(Enterprise/Unlimited/performance/Developer) is your salesforce instance - Salesforce Globe For You

Solution: There are 2 ways in salesforce to get the Salesforce Edition information.

Option1: Go to Setup --> Company Settings --> Company Information

In the Organization Edition field as shown in the image above, you can see the salesforce edition.

Option2: Using SOQL query on Organization object as shown below

select OrganizationType from Organization