On September 11, 2017, KJZY changed its format from smooth jazz to soft adult contemporary, branded as "Smooth FM 93.7."[4] The Smooth Jazz format moved to KJZY's HD2 subchannel and translator station K256DA at 99.1 FM in Santa Rosa, known as "Smooth Jazz 99.1". The move gave a larger coverage area for the soft AC format, while maintaining the smooth jazz format in Santa Rosa and its adjacent communities. The same personalities were heard on both stations, by voice-tracking Smooth Jazz 99.1.
On August 5, 2019, and after playing "The Tide is High" by Blondie, KJZY flipped to a rhythmic/Dance-leaning contemporary hit radio format as 93.7 The Beat. The station was operated by Jamtraxx Media, and was affiliated with its club mixed oriented SPiN-FM format. The first song on The Beat was a remix of "Happier" by Marshmello and Bastille.[5]
On January 30, 2020, it was announced that KJZY would be flipping to a country music format on February 3.[6] On that date, at midnight, KJZY launched its new format, branded as 93.7 The Bull, and assumed the call sign KBBL from its sister station at 106.3 FM. The first song on The Bull was "10,000 Hours" by Dan + Shay and Justin Bieber.
On July 26, 2022, it was announced that "The Bull" branding would move to K256DA on August 1 and flip to classic country and KBBL would flip to adult standards using the "Jazzy" branding from K256DA.[7] Coincident with the format change on August 1, the station flipped back to its former KJZY call sign. The K256DA translator now rebroadcasts KZST, following its sale on December 1, 2022 to Amaturo Sonoma Media Group.
