chore: release v0.26.0

[github-actions]

🤖 New release

• salsa-macro-rules: 0.25.2 -> 0.26.0 (⚠ API breaking changes)
• salsa-macros: 0.25.2 -> 0.26.0
• salsa: 0.25.2 -> 0.26.0 (⚠ API breaking changes)

⚠ salsa-macro-rules breaking changes

--- failure declarative_macro_missing: macro_rules declaration removed or renamed ---

Description:
A `macro_rules!` declarative macro cannot be invoked by its prior name. The macro may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/reference/macros-by-example.html#path-based-scope
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/declarative_macro_missing.ron

Failed in:
  macro maybe_backdate, previously in file /tmp/.tmpW6lodt/salsa-macro-rules/src/maybe_backdate.rs:3

⚠ salsa breaking changes

--- failure enum_no_repr_variant_discriminant_changed: enum variant had its discriminant change value ---

Description:
The enum's variant had its discriminant value change. This breaks downstream code that used its value via a numeric cast like `as isize`.
        ref: https://doc.rust-lang.org/reference/items/enumerations.html#assigning-discriminant-values
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/enum_no_repr_variant_discriminant_changed.ron

Failed in:
  variant EventKind::WillCheckCancellation 4 -> 5 in /tmp/.tmpAD3CBv/salsa/src/event.rs:79
  variant EventKind::DidSetCancellationFlag 5 -> 6 in /tmp/.tmpAD3CBv/salsa/src/event.rs:84
  variant EventKind::WillDiscardStaleOutput 6 -> 7 in /tmp/.tmpAD3CBv/salsa/src/event.rs:87
  variant EventKind::DidDiscard 7 -> 8 in /tmp/.tmpAD3CBv/salsa/src/event.rs:96
  variant EventKind::DidDiscardAccumulated 8 -> 9 in /tmp/.tmpAD3CBv/salsa/src/event.rs:102
  variant EventKind::DidInternValue 9 -> 10 in /tmp/.tmpAD3CBv/salsa/src/event.rs:111
  variant EventKind::DidReuseInternedValue 10 -> 11 in /tmp/.tmpAD3CBv/salsa/src/event.rs:120
  variant EventKind::DidValidateInternedValue 11 -> 12 in /tmp/.tmpAD3CBv/salsa/src/event.rs:129

--- failure enum_variant_added: enum variant added on exhaustive enum ---

Description:
A publicly-visible enum without #[non_exhaustive] has a new variant.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#enum-variant-new
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/enum_variant_added.ron

Failed in:
  variant EventKind:DidFinalizeCycle in /tmp/.tmpAD3CBv/salsa/src/event.rs:72

Changelog

salsa-macro-rules

0.26.0 - 2026-02-02

Added

• Allow opt-ing out of LRU at compile time (#1051)

Fixed

• Do not alias fields of tracked_struct Values when updating (#741)

Other

• Remove unnecessary backdate field macros (#1069)
• Remove ValueWithMetadata (#1057)
• Implement Lookup and HashEqLike for Cow (#1054)

salsa-macros

0.26.0 - 2026-02-02

Added

• Allow opt-ing out of LRU at compile time (#1051)
• Allow tracked function cycle attributes to take closures (#1048)

Other

• Remove unnecessary backdate field macros (#1069)
• Add salsa::Update trait bounds to generics when deriving salsa::Update (#1041)

salsa

0.26.0 - 2026-02-02

Added

• Allow opt-ing out of LRU at compile time (#1051)
• Allow tracked function cycle attributes to take closures (#1048)

Fixed

• Do not alias fields of tracked_struct Values when updating (#741)

Other

• Remove unnecessary boxcar::Vec (#1072)
• replace remaining instances of cycle_fallback with cycle_result in the docs (#1071)
• Fix out-of-order verification of cycle head dependencies (#1061)
• Update compile fail tests (#1070)
• Merge FallbackImmediate and Fixpoint code paths (#1063)
• Introduce a CancellationToken for cancelling specific computations (#1007)
• Remove unnecessary backdate field macros (#1069)
• Remove ValueWithMetadata (#1057)
• Fix stale tracked struct values in later iterations (#1068)
• Skip book deployment on forks (#1066)
• Remove QueryOriginKind::FixpointInitial (#1062)
• Document cycle_fallback in the book (#1056)
• Fix book build with newer mdbook versions (#1055)
• Implement Lookup and HashEqLike for Cow (#1054)
• Add DidFinalizeCycle event, add more tests for cyclic nested queries (#1052)
• Collect cycle heads transitively (#1050)
• Remove unused database forking (#1049)
• Reduce monomorphized code in maybe_changed_after (#1047)
• Reduce monomorphized code in execute_maybe_iterate (#1046)
• Add salsa::Update trait bounds to generics when deriving salsa::Update (#1041)

---

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