chore: release v0.23.0

Cargo.toml

@@ -22,7 +22,7 @@ edition = "2021"
 rust-version = "1.86"
 
 [workspace.dependencies]
-differential-dataflow = { path = "differential-dataflow", default-features = false, version = "0.22.0" }
+differential-dataflow = { path = "differential-dataflow", default-features = false, version = "0.23.0" }
 timely = { version = "0.29", default-features = false }
 columnar = { version = "0.12", default-features = false }
 #timely = { git = "https://github.com/TimelyDataflow/timely-dataflow", default-features = false }

differential-dataflow/CHANGELOG.md

@@ -7,6 +7,31 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.23.0](https://github.com/TimelyDataflow/differential-dataflow/compare/differential-dataflow-v0.22.0...differential-dataflow-v0.23.0) - 2026-04-13
+
+### Changed
+
+- Update to timely 0.29 ([#714](https://github.com/TimelyDataflow/differential-dataflow/pull/714), [#718](https://github.com/TimelyDataflow/differential-dataflow/pull/718), [#720](https://github.com/TimelyDataflow/differential-dataflow/pull/720))
+- Remove scope generic from `Arranged` (now `Arranged<'scope, Tr>` instead of `Arranged<G, Tr>` where `G: Scope`), simplifying trait bounds throughout ([#714](https://github.com/TimelyDataflow/differential-dataflow/pull/714))
+- Add explicit `'scope` lifetime parameter to `VecCollection`, `Arranged`, and related types ([#718](https://github.com/TimelyDataflow/differential-dataflow/pull/718))
+- Scopes are now passed by value rather than by reference (`enter(scope)` instead of `enter(&scope)`) ([#720](https://github.com/TimelyDataflow/differential-dataflow/pull/720))
+- `reduce_abelian` and `reduce_core` accept a container/builder parameter for output, removing the `KeyOwn` requirement from trace bounds ([#710](https://github.com/TimelyDataflow/differential-dataflow/pull/710))
+
+### Removed
+
+- `TimelyStack` container and all dependent types: `TStack` layout, `ColumnationChunker`, `ColInternalMerger`, and `Col*` type aliases (`ColValSpine`, `ColKeySpine`, etc.) ([#715](https://github.com/TimelyDataflow/differential-dataflow/pull/715))
+
+### Other
+
+- Substantial cleanup of `reduce.rs`: remove ~300 lines of dead code, simplify conditional logic, replace silent error swallowing with panics ([#709](https://github.com/TimelyDataflow/differential-dataflow/pull/709))
+- Columnar support refinements ([#704](https://github.com/TimelyDataflow/differential-dataflow/pull/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.
+
 ## [0.22.0](https://github.com/TimelyDataflow/differential-dataflow/compare/differential-dataflow-v0.21.2...differential-dataflow-v0.22.0) - 2026-04-07
 
 ### Other

differential-dataflow/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "differential-dataflow"
-version = "0.22.0"
+version = "0.23.0"
 authors = ["Frank McSherry <fmcsherry@me.com>"]
 
 description = "An incremental data-parallel dataflow platform"

dogsdogsdogs/CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.23.0](https://github.com/TimelyDataflow/differential-dataflow/compare/differential-dogs3-v0.22.0...differential-dogs3-v0.23.0) - 2026-04-13
+
+### Changed
+
+- Update to timely 0.29, tracking scope ownership and lifetime changes ([#714](https://github.com/TimelyDataflow/differential-dataflow/pull/714), [#718](https://github.com/TimelyDataflow/differential-dataflow/pull/718), [#720](https://github.com/TimelyDataflow/differential-dataflow/pull/720))
+- `PrefixExtender`, half-join, and calculus traits now parameterized by `'scope` lifetime and `T: Timestamp` instead of `G: Scope` ([#714](https://github.com/TimelyDataflow/differential-dataflow/pull/714), [#718](https://github.com/TimelyDataflow/differential-dataflow/pull/718))
+
 ## [0.21.2](https://github.com/TimelyDataflow/differential-dataflow/compare/differential-dogs3-v0.21.1...differential-dogs3-v0.21.2) - 2026-04-02
 
 ### Other

dogsdogsdogs/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "differential-dogs3"
-version = "0.22.0"
+version = "0.23.0"
 authors = ["Frank McSherry <fmcsherry@me.com>"]
 license = "MIT"
 edition.workspace = true