Yoshi is a playable character in Super Smash Bros. Ultimate. He was revealed for the game along with the rest of the veterans on June 12th, 2018; he and Luigi were the last veterans confirmed, with both appearing at the very end of the trailer
Yoshi (SSBU)/Edge attack - SmashWiki, the Super Smash Bros. wiki
Yoshi (Super Smash Bros. for Nintendo 3DS and Wii U)
Super Smash Bros. Ultimate - SmashWiki, the Super Smash Bros. wiki
Yoshi Bomb - SmashWiki, the Super Smash Bros. wiki
Yoshi (SSB4)/Forward smash - SmashWiki, the Super Smash Bros. wiki
Smash Wiki Icons by cutiepatootie64 on DeviantArt
Fox (SSBU) - SmashWiki, the Super Smash Bros. wiki
Yoshi (universe) - SmashWiki, the Super Smash Bros. wiki
Bowser Jr. (SSBU) - SmashWiki, the Super Smash Bros. wiki, super
Super Smash Bros. Crusade/Yoshi - Mizuumi Wiki
Yoshi (PM) - SmashWiki, the Super Smash Bros. wiki
Steve (Super Smash Bros. Ultimate), Smashpedia
Yoshi, Smashpedia