As promised, WotC has just released the new version of the Artificer in a 10-page PDF! "In a previous installment of Unearthed Arcana, we presented a new character class: the artificer, a master of magical invention. Based on the feedback we received, we now offer a new look at this class."
They also note that the schedule for Unearthed Arcana is changing -- "We typically look to release Unearthed Arcana once a month. The series remains a valuable opportunity for us to publish playtest content and gather your feedback. That said, we want to release Unearthed Arcana content only when it is ready for you to try. Moving forward, this content will release on a more flexible schedule, roughly once a month and on whatever day works best that month. We’ll let you know when the next UA installment is ready! (There’s a good chance it will contain more content for the artificer.)"
They also note that the schedule for Unearthed Arcana is changing -- "We typically look to release Unearthed Arcana once a month. The series remains a valuable opportunity for us to publish playtest content and gather your feedback. That said, we want to release Unearthed Arcana content only when it is ready for you to try. Moving forward, this content will release on a more flexible schedule, roughly once a month and on whatever day works best that month. We’ll let you know when the next UA installment is ready! (There’s a good chance it will contain more content for the artificer.)"