differential-dogs3-v0.23.0

Changed

• Update to timely 0.29, tracking scope ownership and lifetime changes (#714, #718, #720)
• PrefixExtender, half-join, and calculus traits now parameterized by 'scope lifetime and T: Timestamp instead of G: Scope (#714, #718)

differential-dataflow-v0.23.0

Changed

• Update to timely 0.29 (#714, #718, #720)
• Remove scope generic from Arranged (now Arranged<'scope, Tr> instead of Arranged<G, Tr> where G: Scope), simplifying trait bounds throughout (#714)
• Add explicit 'scope lifetime parameter to VecCollection, Arranged, and related types (#718)
• Scopes are now passed by value rather than by reference (enter(scope) instead of enter(&scope)) (#720)
• reduce_abelian and reduce_core accept a container/builder parameter for output, removing the KeyOwn requirement from trace bounds (#710)

Removed

• TimelyStack container and all dependent types: TStack layout, ColumnationChunker, ColInternalMerger, and Col* type aliases (ColValSpine, ColKeySpine, etc.) (#715)

Other

• Substantial cleanup of reduce.rs: remove ~300 lines of dead code, simplify conditional logic, replace silent error swallowing with panics (#709)
• Columnar support refinements (#704)

This is a heavily breaking release driven by tracking timely 0.29.
The Arranged type loses its scope generic and gains an explicit scope lifetime.
Scope parameters throughout the API shift from generic S: Scope to concrete types, and scopes are passed owned rather than borrowed.
Users of Col* type aliases should migrate to columnar-backed equivalents.
The reduce family of functions now takes an explicit output container parameter, which removes the need for KeyOwn bounds on traces.

differential-dogs3-v0.22.0

Other

• Consolidate storage types to avoid double allocations
• Re-order stages and improve session batching
• Less quadratic half_join

differential-dataflow-v0.22.0

Other

• Allow InternalMerger::extract to yield when full buffer (#711)

differential-dogs3-v0.21.2

Other

• Consolidate storage types to avoid double allocations
• Re-order stages and improve session batching
• Less quadratic half_join

differential-dataflow-v0.21.2

Other

• InternalMerger adopts tail chunks rather than copy them
• Tidy up structure of logic
• Dial in buffer sizing
• Introduce VecMerger to efficiently merge owning vectors

differential-dogs3-v0.21.1

Other

• update Cargo.toml dependencies

differential-dataflow-v0.21.1

Other

• InternalMerger adopts tail chunks rather than copy them
• Tidy up structure of logic
• Dial in buffer sizing
• Introduce VecMerger to efficiently merge owning vectors

differential-dogs3-v0.21.0

Other

• update Cargo.toml dependencies

differential-dataflow-v0.21.0

Added

• Arranged::as_container convenience method for extracting non-Vec containers from arrangements (#695)
• Columnation and Columnar implementations for the Present zero-sized difference type (#682)

Changed

• Update to timely 0.28 and columnar 0.12 (#698)
• Adopt internal iteration for consolidation, merge batching, and trace building, replacing external iteration that leaked internal types through abstractions (#689)

Fixed

• Eliminate a redundant arrange in propagate and a double scope-import in scc (#692)

The main theme of this release is internal iteration: consolidation, merging, and trace building now happen behind trait methods rather than exposing container internals outward.
Dependency updates track timely 0.28 and columnar 0.12.