"We've always had a great relationship, we spoke a lot even when I was at Madrid," Kaka revealed to Milan Channel.
"We are friends and I wish him the best for next season. He loves Milan and he can have a great season."
The midfielder also answered questions on the future of compatriot Robinho at San Siro, as well as the disappointment of missing out on a place in Brazil's World Cup squad.
"I don't know what Robinho will do, they are difficult decisions. I hope Robinho and Milan can make the best decision for everyone.
"I wanted to go to the World Cup but I have done it all. When I was at Madrid my chances of going to the World Cup were minimal, but at Milan that wasn't the case.
"This season has given me a lot, even though I wasn't included."
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