From 8d7a28fe05b3505f7cffdec909e7149d072e7e1d Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Wed, 16 Sep 2026 00:00:11 +0200
Subject: [PATCH 1/2] chore: adaptations from downstream-lean4

---
 test/infotree.expected.out | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/test/infotree.expected.out b/test/infotree.expected.out
index 106a2697..06597bea 100644
--- a/test/infotree.expected.out
+++ b/test/infotree.expected.out
@@ -1,5 +1,10 @@
 {"messages":
  [{"severity": "warning",
+   "pos": {"line": 1, "column": 28},
+   "endPos": {"line": 1, "column": 39},
+   "data":
+   "Tactic `constructor` applied constructor `Nat.zero`, but `Nat.succ` also matches the goal.\n\nHint: Use `constructor!` to apply the first matching constructor without this warning:\n  [apply] constructor!"},
+  {"severity": "warning",
    "pos": {"line": 1, "column": 7},
    "endPos": {"line": 1, "column": 8},
    "data":
@@ -13,7 +18,7 @@
       "finish": {"line": 1, "column": 39}},
      "pp": "constructor",
      "kind": "Lean.Parser.Tactic.constructor",
-     "argKinds": ["constructor"]},
+     "argKinds": ["constructor", "Lean.Parser.Tactic.optConfig"]},
     "name": "Lean.Parser.Tactic.constructor",
     "goalsBefore": ["h : Int\n⊢ Nat"],
     "goalsAfter": []},

From ba6edd469a8120a04682a7eab95202b15dc705fb Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Wed, 16 Sep 2026 00:01:03 +0200
Subject: [PATCH 2/2] chore: bump toolchain to v4.35.0-rc1

---
 lean-toolchain                  |  2 +-
 test/Mathlib/lake-manifest.json | 22 +++++++++++-----------
 test/Mathlib/lakefile.toml      |  2 +-
 test/Mathlib/lean-toolchain     |  2 +-
 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/lean-toolchain b/lean-toolchain
index 12359f92..3d1dc1d0 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.34.0
+leanprover/lean4:v4.35.0-rc1
diff --git a/test/Mathlib/lake-manifest.json b/test/Mathlib/lake-manifest.json
index 33155f45..25ea1397 100644
--- a/test/Mathlib/lake-manifest.json
+++ b/test/Mathlib/lake-manifest.json
@@ -5,17 +5,17 @@
    "type": "git",
    "subDir": null,
    "scope": "",
-   "rev": "5ed2965256430c3649e86755f9576b54eca72435",
+   "rev": "c32e1ec0d1eb5237ba344eee50162f45d5b0fc76",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.34.0",
+   "inputRev": "v4.35.0-rc1",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/plausible",
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "118aa17ee84656b8bd727fef7c458ee8c833385c",
+   "rev": "16fe28ca7c2e01b71856f7a0a801ea844580f2d5",
    "name": "plausible",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -25,7 +25,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "ddf04cf3949fa556442341e87d47f9f6e6074707",
+   "rev": "b43172c7f62b95ecd6daa0951602b83eb35182a1",
    "name": "LeanSearchClient",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -35,7 +35,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "e928b72544873815af278d38681b31c0293588e3",
+   "rev": "0b9118a4a6d4c752e51f4f731edc09f4cc135f4c",
    "name": "importGraph",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -45,7 +45,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "106ff4fafc74ef4ac99d81dbf3ab399118f497a5",
+   "rev": "af0c1665a9cdb1c90409b52a183113efbb5a4480",
    "name": "proofwidgets",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -55,7 +55,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "355695d523e41d0554926416cba2a2b3544fbbc9",
+   "rev": "7938bfd115516f80b260d43faf630c8520471a00",
    "name": "aesop",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
@@ -65,7 +65,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "6a489d9af5d0c47e5b259e2e8bcdfc1811b5a259",
+   "rev": "21558817bf8b77bab8f4c3081e0062201fd974d2",
    "name": "Qq",
    "manifestFile": "lake-manifest.json",
    "inputRev": "master",
@@ -75,7 +75,7 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "f2effa3d803fda822b1f97b806c47cf2adfbcbc2",
+   "rev": "2a71587431553220d08be069a144b8215350e1d6",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
    "inputRev": "main",
@@ -85,10 +85,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover",
-   "rev": "e92c9f15fdfacc8536f31cfb3b7ad26c3c8cd204",
+   "rev": "3c7ccd7060887fa478a55e555fae61bbf466c3ba",
    "name": "Cli",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.34.0",
+   "inputRev": "v4.35.0-rc1",
    "inherited": true,
    "configFile": "lakefile.toml"}],
  "name": "«repl-mathlib-tests»",
diff --git a/test/Mathlib/lakefile.toml b/test/Mathlib/lakefile.toml
index 7d35e918..8458c544 100644
--- a/test/Mathlib/lakefile.toml
+++ b/test/Mathlib/lakefile.toml
@@ -4,7 +4,7 @@ defaultTargets = ["ReplMathlibTests"]
 [[require]]
 name = "mathlib"
 git = "https://github.com/leanprover-community/mathlib4"
-rev = "v4.34.0"
+rev = "v4.35.0-rc1"
 
 [[lean_lib]]
 name = "ReplMathlibTests"
diff --git a/test/Mathlib/lean-toolchain b/test/Mathlib/lean-toolchain
index 12359f92..3d1dc1d0 100644
--- a/test/Mathlib/lean-toolchain
+++ b/test/Mathlib/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:v4.34.0
+leanprover/lean4:v4.35.0-rc1