4.21.0 (2026-06-24)

Bug Fixes

• migrate refresh_access_token to ApiImplSession (F821 on master after #1160) (#1200) (3e1e4f2)
• migrate USA horn/hazard to self.session (AttributeError after #1160) (#1202) (ba4cd7f)

Features

• add HyundaiBlueLinkApiUSA.refresh_access_token override (#1198) (660fbca)