Rails - PATCH and PUT

In Rails, if you run rake routes, you will see 2 type of method: PUT and PATCH, both of them are redirect to model#update. So what are difference between PUT and PATCH.

The most difference is PATCH is partial update and PUT is full update.

For example, if your record has 8 fields, and you just want to update 2 fields on this, PATCH will update those 2 fields, but PUT will update 2 fields AND others are set to default/existing values.