Season 22

Season 22 of premiered on May 13, 2019 with "Mr. Ratburn and the Special Someone" and "The Feud". It is scheduled to conclude on October 16, 2019 with "The Pea and the Princess" and "D.W. and Dr. Whosit." The production of this season was first made known in March 2018. It is the third season animated by Oasis Animation.

Production and announcements
On March 28, 2018, Jessica Kardos (voice of Sue Ellen) stated on Twitter that she and Holly Gauthier Frankel (voice of Fern) were recording new episodes of Arthur. New episodes were still being recorded as late as November.

On May 25, 2018, Bruce Dinsmore (voice of Binky, Mr. Read, and Bailey) confirmed that he had also recorded new episodes, saying: "we've got lots more coming" and "there's some good surprises." Dinsmore also revealed that there will be a guest star this season, who is "an actress that everyone would know." (This was later revealed to be Jane Lynch.)

The first official announcement came on June 4, 2018, when Oasis Animation confirmed that it would produce four more seasons, up to Season 25.

On November 16, 2018, Dinsmore announced that he had recorded his "very last session" for Arthur. It is unclear whether he was signaling his own departure from the series or the actual end of the show. He later clarified that he "didn’t intend to make an announcement of any kind," and that Arthur had "lots of new episodes coming."