Yahoo has announced the product prioritization on its official blog. Below given the changes in products:
Yahoo mail on older iOS: No longer support of Yahoo built-in Mail app for devices older than iOS 5 from June 15, 2015. If you use iOS 4 & earlier, go for Yahoo Mail on the Safari mobile browser.
Yahoo Contacts on older Macs: From June 15, 2015, no longer support of Yahoo Contacts syncing for devices older than Mac OS X 10.8 Mountain Lion. If you use Mac OS X 10.7 Lion & earlier, access your Yahoo Contacts through Yahoo Mail on their web browser.
maps.yahoo.com: The Yahoo Maps site is going to close in this month end. But it will support on Yahoo search and on several other Yahoo properties including Flickr.
Yahoo media properties: They will close Yahoo Music in France & Canada and Yahoo Movies in Spain. Closing Yahoo Philippines homepage and genre-specific media sites, and redirect to the Yahoo Singapore homepage.
Closing Yahoo TV in the UK, France, Germany, Spain, Italy and Canada as well as Yahoo Autos in the UK, France, Germany, Spain and Italy. Yahoo Entertainment in Singapore will close in July.