chore: release v0.30.0

CHANGELOG.md

@@ -7,13 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.30.0](https://github.com/TimelyDataflow/timely-dataflow/compare/timely-v0.29.0...timely-v0.30.0) - 2026-05-28
+
+This release adds opt-in spill-to-disk support for the zero-copy network allocator, makes `Bytes` `Sync` (a soundness fix), and continues trimming compile-time monomorphization sprawl.
+
 ### Breaking changes
 
-- `ToStreamBuilder` exposes the item type via the `Item` associated type instead of a trait-level generic, and the container builder moves to a method-level generic. This enables method-call syntax: `(0..3).to_stream_with_builder::<_, CapacityContainerBuilder<_>>(scope)` instead of the UFCS form `ToStreamBuilder::<CapacityContainerBuilder<_>>::to_stream_with_builder(0..3, scope)`.
+- **`Bytes` is now `Sync`, and byte buffers must be `Send`.** `timely_bytes::arc::Bytes` now implements `Sync` in addition to `Send`. To make both impls sound, `BytesMut::from` now requires its payload to be `Send`. This is a breaking change to `timely_communication`: `BytesRefill::logic` now produces `Box<dyn DerefMut<Target=[u8]> + Send>` rather than `Box<dyn DerefMut<Target=[u8]>>`. Custom refills whose buffer type wraps a raw pointer (e.g. `NonNull`) must assert `unsafe impl Send` on that type. ([#800](https://github.com/TimelyDataflow/timely-dataflow/pull/800))
+- **`ToStreamBuilder`** exposes the item type via the `Item` associated type instead of a trait-level generic, and the container builder moves to a method-level generic. This enables method-call syntax: `(0..3).to_stream_with_builder::<_, CapacityContainerBuilder<_>>(scope)` instead of the UFCS form `ToStreamBuilder::<CapacityContainerBuilder<_>>::to_stream_with_builder(0..3, scope)`. ([#792](https://github.com/TimelyDataflow/timely-dataflow/pull/792))
+
+### Added
+
+- **Spill-to-disk for the zero-copy allocator (`timely_communication`).** A new `allocator::zero_copy::spill` module lets a `MergeQueue` shed resident bytes under memory pressure. It composes three pluggable traits: `SpillPolicy` (whether and how to reshape a queue on each `extend`), `BytesSpill` (where spilled bytes go — file, object store, mock, …), and `BytesFetch` (reads them back). The shipped `threshold::Threshold` policy spills the middle of a queue once resident bytes exceed configurable threshold/reserve/budget knobs. It is opt-in via the `spill` hook on the communication configuration and defaults to `None`, so existing deployments are unaffected. See the `spill_stress` and `spill_compare` examples. ([#789](https://github.com/TimelyDataflow/timely-dataflow/pull/789), [#791](https://github.com/TimelyDataflow/timely-dataflow/pull/791))
+- `logging::Registry::names` iterates the names of the currently bound loggers. ([#795](https://github.com/TimelyDataflow/timely-dataflow/pull/795))
 
-### `Bytes` is now `Sync`, and byte buffers must be `Send`
+### Other
 
-`timely_bytes::arc::Bytes` now implements `Sync` in addition to `Send`. To make both impls sound, `BytesMut::from` now requires its payload to be `Send`. This is a breaking change to `timely_communication`: `BytesRefill::logic` now produces `Box<dyn DerefMut<Target=[u8]> + Send>` rather than `Box<dyn DerefMut<Target=[u8]>>`. Custom refills whose buffer type wraps a raw pointer (e.g. `NonNull`) must assert `unsafe impl Send` on that type.
+- Updated the `columnar` dependency to 0.13.
+- Hoisted the per-update rebuild check out of `MutableAntichain::update_iter` into a `requires_rebuild` helper generic only over the timestamp, reducing monomorphization sprawl (~1600 fewer LLVM lines on the `event_driven` example). ([#797](https://github.com/TimelyDataflow/timely-dataflow/pull/797))
 
 ## [0.29.0](https://github.com/TimelyDataflow/timely-dataflow/compare/timely-v0.28.1...timely-v0.29.0) - 2026-04-13
 

Cargo.toml

@@ -23,7 +23,7 @@ edition = "2021"
 rust-version = "1.86"
 
 [workspace.dependencies]
-columnar = "0.12"
+columnar = "0.13"
 
 [workspace.lints.clippy]
 type_complexity = "allow"

bytes/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "timely_bytes"
-version = "0.29.0"
+version = "0.30.0"
 authors = ["Frank McSherry <fmcsherry@me.com>"]
 edition.workspace = true
 rust-version.workspace = true

communication/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "timely_communication"
-version = "0.29.0"
+version = "0.30.0"
 authors = ["Frank McSherry <fmcsherry@me.com>"]
 description = "Communication layer for timely dataflow"
 edition.workspace = true
@@ -25,9 +25,9 @@ columnar = { workspace = true }
 getopts = { version = "0.2.24", optional = true }
 byteorder = "1.5"
 serde = { version = "1.0", features = ["derive"] }
-timely_bytes = { path = "../bytes", version = "0.29" }
-timely_container = { path = "../container", version = "0.29.0" }
-timely_logging = { path = "../logging", version = "0.29" }
+timely_bytes = { path = "../bytes", version = "0.30" }
+timely_container = { path = "../container", version = "0.30.0" }
+timely_logging = { path = "../logging", version = "0.30" }
 
 [dev-dependencies]
 tempfile = "3"

container/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "timely_container"
-version = "0.29.0"
+version = "0.30.0"
 description = "Container abstractions for Timely"
 license = "MIT"
 edition.workspace = true

logging/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "timely_logging"
-version = "0.29.0"
+version = "0.30.0"
 authors = ["Frank McSherry <fmcsherry@me.com>"]
 description = "Common timely logging infrastructure"
 edition.workspace = true
@@ -16,4 +16,4 @@ license = "MIT"
 workspace = true
 
 [dependencies]
-timely_container = { version = "0.29.0", path = "../container" }
+timely_container = { version = "0.30.0", path = "../container" }

timely/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "timely"
-version = "0.29.0"
+version = "0.30.0"
 authors = ["Frank McSherry <fmcsherry@me.com>"]
 readme = "../README.md"
 edition.workspace = true
@@ -30,10 +30,10 @@ bincode = { version = "1.3" }
 byteorder = "1.5"
 itertools = "0.14.0"
 serde = { version = "1.0", features = ["derive"] }
-timely_bytes = { path = "../bytes", version = "0.29" }
-timely_logging = { path = "../logging", version = "0.29" }
-timely_communication = { path = "../communication", version = "0.29", default-features = false }
-timely_container = { path = "../container", version = "0.29" }
+timely_bytes = { path = "../bytes", version = "0.30" }
+timely_logging = { path = "../logging", version = "0.30" }
+timely_communication = { path = "../communication", version = "0.30", default-features = false }
+timely_container = { path = "../container", version = "0.30" }
 smallvec = { version = "1.15.1", features = ["serde", "const_generics"] }
 
 [dev-dependencies]