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Pull requests list

fix: expose the Char.ordinal family changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15115 opened Sep 11, 2026 by kim-em Collaborator Loading…
spike: flexible induction target indices toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15110 opened Sep 10, 2026 by datokrat Contributor • Draft
test toolchain: stricter check for dsimp lemmas
#15109 opened Sep 10, 2026 by datokrat Contributor • Draft
[Backport releases/v4.34.0] fix: restore trailing whitespace of nested tactic blocks in the info tree
#15106 opened Sep 10, 2026 by github-actions Bot Loading…
feat: don't reduce proofs in is_def_eq_core builds-mathlib CI has verified that Mathlib builds against this PR mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15103 opened Sep 10, 2026 by arthur-adjedj Contributor • Draft
5
doc: update Grove, add table for order API adoption in numeric types changelog-no Do not include this PR in the release changelog grove The standard library changes in this PR should be analyzed using Grove. toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15097 opened Sep 9, 2026 by TwoFX Member • Draft
1
fix: prevent unsafe fallback axioms from entering safe declarations toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15094 opened Sep 9, 2026 by felix314159 Loading…
1
feat: add throws clauses to def contracts changelog-language Language features and metaprograms toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15091 opened Sep 9, 2026 by sgraf812 Contributor • Draft
1
feat: erased declarations in do notation breaks-mathlib This is not necessarily a blocker for merging: but there needs to be a plan changelog-language Language features and metaprograms downstream Request a downstream-lean4 adaptation PR. mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15090 opened Sep 9, 2026 by sgraf812 Contributor Loading…
2
perf: fix non linearities in synthInstance builds-mathlib CI has verified that Mathlib builds against this PR changelog-language Language features and metaprograms mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15085 opened Sep 9, 2026 by hargoniX Member Loading…
6
feat: add modular UInt64 arithmetic operations changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15077 opened Sep 9, 2026 by kim-em Collaborator Loading…
4
feat: add wide UInt64 arithmetic operations changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15076 opened Sep 9, 2026 by kim-em Collaborator Loading…
8
feat: ChoiceResolutionInfo builds-manual CI has verified that the Lean Language Reference builds against this PR builds-mathlib CI has verified that Mathlib builds against this PR changelog-no Do not include this PR in the release changelog mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15070 opened Sep 8, 2026 by mhuisi Contributor Loading…
5
fix: keep Info of elaborations that pass a hole through builds-manual CI has verified that the Lean Language Reference builds against this PR builds-mathlib CI has verified that Mathlib builds against this PR changelog-no Do not include this PR in the release changelog mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15068 opened Sep 8, 2026 by mhuisi Contributor Loading…
6
feat: frame the exception channel changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15067 opened Sep 8, 2026 by sgraf812 Contributor • Draft
2
feat: virtual one-field structures breaks-mathlib This is not necessarily a blocker for merging: but there needs to be a plan builds-manual CI has verified that the Lean Language Reference builds against this PR changelog-language Language features and metaprograms downstream Request a downstream-lean4 adaptation PR. mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15066 opened Sep 8, 2026 by datokrat Contributor • Draft
12
feat: rewrite the Verso docstring parser to produce accurate syntax breaks-manual This is not necessarily a blocker for merging, but there needs to be a plan. breaks-mathlib This is not necessarily a blocker for merging: but there needs to be a plan changelog-language Language features and metaprograms downstream Request a downstream-lean4 adaptation PR. macos-arm-ci Build for darwin_aarch64 in CI mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15064 opened Sep 8, 2026 by david-christiansen Contributor Loading…
3
feat: separator-preserving Syntax.identComponents? builds-manual CI has verified that the Lean Language Reference builds against this PR builds-mathlib CI has verified that Mathlib builds against this PR changelog-no Do not include this PR in the release changelog mathlib4-nightly-available A branch for this PR exists at leanprover-community/mathlib4-nightly-testing:lean-pr-testing-NNNN toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15057 opened Sep 8, 2026 by mhuisi Contributor Loading…
4
perf: mark thunk results as multi-threaded only when the thunk is builds-manual CI has verified that the Lean Language Reference builds against this PR toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15047 opened Sep 6, 2026 by Kha Member • Draft
4
fix: dependency order when rebuilding have telescopes in Sym.simp toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15046 opened Sep 6, 2026 by emerardd Loading…
1
2
fix: log goalsAccomplished for theorems generated using elab (#15044) toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15045 opened Sep 6, 2026 by medovina Loading…
1
2
fix: add braces around the operator || with lower precedence, make regex portable toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15040 opened Sep 5, 2026 by yurivict Loading…
2
perf: compile the reference-counted deletion machinery with mimalloc toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15032 opened Sep 4, 2026 by Kha Member • Draft
4
perf: let Lean's allocations skip mimalloc's free-list scrub toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15031 opened Sep 4, 2026 by Kha Member • Draft
4
chore: remove redundant sepBy1 in subst parser builds-manual CI has verified that the Lean Language Reference builds against this PR changelog-no Do not include this PR in the release changelog downstream Request a downstream-lean4 adaptation PR. toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#15029 opened Sep 4, 2026 by mhuisi Contributor Loading…
3
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