chore: release v0.20.0

[github-actions]

🤖 New release

• differential-dataflow: 0.19.1 -> 0.20.0 (⚠ API breaking changes)
• differential-dogs3: 0.19.1 -> 0.20.0 (✓ API compatible changes)

⚠ differential-dataflow breaking changes

--- failure inherent_method_missing: pub method removed or renamed ---

Description:
A publicly-visible method or associated fn is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/inherent_method_missing.ron

Failed in:
  Arranged::join_core_internal_unsafe, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/arrange/arrangement.rs:218
  Arranged::join_core_internal_unsafe, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/arrange/arrangement.rs:218

--- failure module_missing: pub module removed or renamed ---

Description:
A publicly-visible module cannot be imported by its prior path. A `pub use` may have been removed, or the module may have been renamed, removed, or made non-public.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/module_missing.ron

Failed in:
  mod differential_dataflow::operators::consolidate, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/consolidate.rs:1

--- failure trait_missing: pub trait removed or renamed ---

Description:
A publicly-visible trait cannot be imported by its prior path. A `pub use` may have been removed, or the trait itself may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/trait_missing.ron

Failed in:
  trait differential_dataflow::operators::join::Join, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/join.rs:28
  trait differential_dataflow::operators::Join, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/join.rs:28
  trait differential_dataflow::operators::join::JoinCore, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/join.rs:197
  trait differential_dataflow::operators::JoinCore, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/join.rs:197
  trait differential_dataflow::operators::arrange::arrangement::ArrangeBySelf, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/arrange/arrangement.rs:561
  trait differential_dataflow::operators::arrange::ArrangeBySelf, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/arrange/arrangement.rs:561
  trait differential_dataflow::operators::reduce::ReduceCore, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:219
  trait differential_dataflow::operators::arrange::arrangement::ArrangeByKey, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/arrange/arrangement.rs:528
  trait differential_dataflow::operators::arrange::ArrangeByKey, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/arrange/arrangement.rs:528
  trait differential_dataflow::operators::reduce::Reduce, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:31
  trait differential_dataflow::operators::Reduce, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:31
  trait differential_dataflow::operators::reduce::Threshold, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:97
  trait differential_dataflow::operators::Threshold, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:97
  trait differential_dataflow::operators::reduce::Count, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:172
  trait differential_dataflow::operators::Count, previously in file /tmp/.tmpcqjXGN/differential-dataflow/src/operators/reduce.rs:172

Changelog

differential-dataflow

0.20.0 - 2026-02-20

Other

• Test mdbook like a crate (#669)
• Migrate Join logic away from traits (#668)
• More VecCollection demotion (#667)
• Implement utility traits for Rc collections (#666)
• Deprioritize the Vec container (#664)

differential-dogs3

0.20.0 - 2026-02-20

Other

• Test mdbook like a crate (#669)
• Migrate Join logic away from traits (#668)
• More VecCollection demotion (#667)
• Deprioritize the Vec container (#664)

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This PR was generated with release-plz.