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Pull requests list

feat: add @[attribute] for registering custom attributes
#13629 opened May 4, 2026 by Kha Member • Draft
2
refactor: align ScopedEnvExtension.exportEntry? with new PersistentEnvExtension.exportEntriesFn
#13628 opened May 4, 2026 by Kha Member Loading…
4
chore: rename UInt8.ofNatTruncate to UInt8.ofNatClamp builds-mathlib CI has verified that Mathlib builds against this PR changelog-library Library 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
#13627 opened May 4, 2026 by TwoFX Member Loading…
2
fix: apply rcases substitution before recording pattern info changelog-tactics User facing tactics toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13621 opened May 3, 2026 by berberman • Draft
1
4
fix: reject attribute uses whose module is reachable only via IR breaks-mathlib This is not necessarily a blocker for merging: but there needs to be a plan 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
#13613 opened May 2, 2026 by Kha Member • Draft
2
feat: expose fields required for implementing linters outside of Lean core with detailed auto-fixes and diagnostic tags toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13610 opened May 2, 2026 by wvhulle • Draft
2
chore: export function needed to implement dead / unused code detection functions outside of Lean core by users toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13609 opened May 2, 2026 by wvhulle • Draft
2
feat: show live Lake LSP loading progress in status bar of editors instead of top of file toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13608 opened May 2, 2026 by wvhulle • Draft
2
Nix flake improvements toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13607 opened May 2, 2026 by wvhulle • Draft
2
Lsp formatting toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13606 opened May 2, 2026 by wvhulle • Draft
2
feat: remove redundant deprecation warnings changelog-language Language features and metaprograms toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13595 opened May 1, 2026 by wkrozowski Contributor • Draft
2
feat: add values/valuesArray lemmas for (D)HashMap toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13594 opened May 1, 2026 by pandaman64 Contributor Loading…
2
refactor: use libuv for subprocesses release-ci Enable all CI checks for a PR, like is done for releases toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13591 opened Apr 30, 2026 by eric-wieser Contributor • Draft
4
fix: perform severity overrides before counting errors changelog-compiler Compiler, runtime, and FFI toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13589 opened Apr 30, 2026 by eric-wieser Contributor Loading…
1
3
fix: kernel type mismatch in cutsat eq_def proofs changelog-tactics User facing tactics toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13587 opened Apr 30, 2026 by leodemoura Member Loading…
1
2
fix: remove @[expose] when unnecessary, fixing stage2 warnings in #13823 breaks-mathlib This is not necessarily a blocker for merging: but there needs to be a plan 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
#13584 opened Apr 30, 2026 by datokrat Contributor Loading…
2
feat: upstream unreachableTactic linter changelog-no Do not include this PR in the release changelog toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13580 opened Apr 29, 2026 by wkrozowski Contributor • Draft
2
fix: record instances unfolded by wrapInstance as shake dependencies breaks-mathlib This is not necessarily a blocker for merging: but there needs to be a plan 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
#13579 opened Apr 29, 2026 by Kha Member • Draft
2
test: Bring Sym-based mvcgen' on par with mvcgen toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13578 opened Apr 29, 2026 by sgraf812 Contributor • Draft
6
fix: tail-recursive BitVec.ofBoolListLE/ofBoolListBE to avoid stack overflow toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13576 opened Apr 29, 2026 by kim-em Collaborator • Draft
2
feat: add Locale and LocaleSymbols for configurable date/time formatting changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13567 opened Apr 29, 2026 by algebraic-dev Member Loading…
@algebraic-dev
2
fix: correct off-by-one in toSeconds and wrong day count in Year.days changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13566 opened Apr 29, 2026 by algebraic-dev Member Loading…
@algebraic-dev
2
fix: prioritize TZ and TZDIR over /etc/localtime in TZDB search changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13565 opened Apr 29, 2026 by algebraic-dev Member Loading…
@algebraic-dev
2
chore: make Glob.ofString? public changelog-lake Lake toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#13563 opened Apr 29, 2026 by kim-em Collaborator Loading…
2
feat: add @[reducible_proj] for selective projection unfolding 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
#13562 opened Apr 29, 2026 by kim-em Collaborator • Draft
2
ProTip! Exclude everything labeled bug with -label:bug.