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Pull requests list

fix: do not assign synthetic opaque MVars in mspec
#12184 opened Jan 27, 2026 by sgraf812 Loading…
chore: activate two mspec tests
#12183 opened Jan 27, 2026 by sgraf812 • Queued
doc: clarify release notes title format requirements
#12182 opened Jan 27, 2026 by kim-em • Queued
feat: backward.isDefEq.respectTransparency changelog-language Language features and metaprograms
#12179 opened Jan 27, 2026 by leodemoura • Draft
fix: bump numInstances for delayed grind theorem instances 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-tactics User facing tactics 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
#12176 opened Jan 27, 2026 by kim-em Loading…
2
perf: check universe defeq before unfolding plain constants 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-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
#12175 opened Jan 27, 2026 by kim-em • Draft
4
fix: typo in ExtractLetsConfig doc comment toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12174 opened Jan 27, 2026 by kim-em Loading…
2
fix: use isClass? instead of binder annotation to identify instance parameters awaiting-mathlib We should not merge this until we have a successful Mathlib build breaks-manual This is not necessarily a blocker for merging, but there needs to be a plan. changelog-tactics User facing tactics 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
#12172 opened Jan 27, 2026 by leodemoura Loading…
4
feat: adjust grind annotations for List.drop awaiting-mathlib We should not merge this until we have a successful Mathlib build 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-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
#12170 opened Jan 26, 2026 by kim-em Loading…
3
perf: injEq geneation without MVars
#12167 opened Jan 26, 2026 by nomeata • Draft
2
fix: remove unnecessary dependency of pairwise_iff_getElem and add nodup_iff_getElem_inj toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12166 opened Jan 26, 2026 by linesthatinterlace • Draft
2
feat: Std.Iter.first? changelog-library Library
#12162 opened Jan 26, 2026 by TwoFX Loading…
feat: introduce HTTP/1.1 server changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12151 opened Jan 25, 2026 by algebraic-dev Loading…
@algebraic-dev
3
test: add regression test for perm lemma fvar ordering toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12149 opened Jan 25, 2026 by kim-em Loading…
2
feat: introduce HTTP/1.1 protocol state machine changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12146 opened Jan 25, 2026 by algebraic-dev Loading…
@algebraic-dev
4
feat: introduce Body type class and some Body types for HTTP changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12144 opened Jan 24, 2026 by algebraic-dev Loading…
@algebraic-dev
5
chore: remove redundant smod code
#12133 opened Jan 24, 2026 by eric-wieser Loading…
fix: do not compile with -fwrapv changelog-no Do not include this PR in the release changelog 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
#12132 opened Jan 24, 2026 by eric-wieser Loading…
3
feat: introduce URI data type for HTTP changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12128 opened Jan 23, 2026 by algebraic-dev Loading…
@algebraic-dev
6
feat: introduce Headers data type for HTTP changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12127 opened Jan 23, 2026 by algebraic-dev Loading…
@algebraic-dev
23
feat: add core HTTP data types changelog-library Library toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12126 opened Jan 23, 2026 by algebraic-dev Loading…
@algebraic-dev
13
[DRAFT] Alternative implementation of cbv tactic via Sym.Simp 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
#12124 opened Jan 23, 2026 by wkrozowski • Draft
2
chore: update to c++20 breaks-manual 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 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
#12117 opened Jan 23, 2026 by hargoniX • Draft
3
feat: lake: record cache service in outputs builds-mathlib CI has verified that Mathlib builds against this PR changelog-lake Lake 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
#12113 opened Jan 23, 2026 by tydeu • Draft
2
fix: avoid SIGFPE on x86_64 for ISize division overflow changelog-language Language features and metaprograms toolchain-available A toolchain is available for this PR, at leanprover/lean4-pr-releases:pr-release-NNNN
#12110 opened Jan 22, 2026 by eric-wieser Loading…
1
3
ProTip! Updated in the last three days: updated:>2026-01-24.