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Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Kim Morrison bd5fb4e90c
fix: handle duplicate nightly tag in scheduled CI runs (#13114) 
This PR fixes the scheduled nightly CI run failing with `fatal: tag
'nightly-YYYY-MM-DD' already exists` when a manual `workflow_dispatch`
has already created today's nightly tag.

The scheduled path now uses the same `-revK` revision logic that the
manual re-release path already has: if `nightly-2026-03-24` exists, it
creates `nightly-2026-03-24-rev1` (and so on). The existing guard
against creating nightlies when HEAD has a non-nightly tag (e.g. a
release tag) is preserved.

🤖 Prepared with Claude Code

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-25 01:10:54 +00:00
.claude chore: speed up test suite slightly (#12969) 2026-03-20 12:24:32 +00:00
.github fix: handle duplicate nightly tag in scheduled CI runs (#13114) 2026-03-25 01:10:54 +00:00
.vscode chore: replace workspace file with .vscode/ settings (#12770) 2026-03-04 01:10:04 +00:00
doc feat: unfold and rewrap instances in inferInstanceAs and deriving 2026-03-22 13:25:46 +01:00
images
releases_drafts
script fix: handle lean4-nightly toolchain prefix in release checklist (#12865) 2026-03-23 03:01:58 +00:00
src fix: lake: race condition in Cache.saveArtifact (#13110) 2026-03-24 19:05:56 +00:00
stage0 chore: update stage0 2026-03-24 14:42:18 +00:00
tests test: harden sym mvcgen bench script and tune benchmark sizes (#13107) 2026-03-24 21:14:36 +00:00
.gitattributes chore: migrate more tests to new test suite (#12809) 2026-03-06 16:52:01 +00:00
.gitignore chore: replace workspace file with .vscode/ settings (#12770) 2026-03-04 01:10:04 +00:00
.gitpod.Dockerfile
.gitpod.yml
.ignore
CMakeLists.txt chore: make leantar available in stage0 (#12992) 2026-03-19 20:43:43 +00:00
CMakePresets.json chore: fix ci for new test suite (#12704) 2026-02-27 23:25:37 +00:00
CODEOWNERS
CONTRIBUTING.md chore: migrate pkg tests (#12889) 2026-03-11 18:55:46 +00:00
flake.lock
flake.nix chore: add aarch64-darwin to flake (#12915) 2026-03-18 15:55:34 +00:00
lean-toolchain
LICENSE
LICENSES feat: bundle leantar with Lean (#12822) 2026-03-09 20:10:59 +00:00
README.md
RELEASES.md

README.md

This is the repository for Lean 4.

About

Installation

See Install Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.