New release : b.19 • improved relieve backpressure handling • amb> and amb=, syntactic sugar for ambiguous computations with static branching (resp. sequential and concurrent) • several operators have been renamed, cf https://github.com/leonoel/missionary/issues/29#issuecomment-827437446 for complete change list and rationale (old names are still aliased but deprecated) • gather is deprecated (use ap with amb= or ?= instead)