From a040525176fe2942301017f9c25eb9eeed15536b Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Fri, 27 May 2022 11:48:29 -0700
Subject: [PATCH 1/3] DEPS: Bump Cython

---
 ci/deps/actions-310.yaml                  | 2 +-
 ci/deps/actions-38-downstream_compat.yaml | 2 +-
 ci/deps/actions-38.yaml                   | 2 +-
 ci/deps/actions-39.yaml                   | 2 +-
 ci/deps/actions-pypy-38.yaml              | 2 +-
 ci/deps/circle-38-arm64.yaml              | 2 +-
 doc/source/whatsnew/v1.4.3.rst            | 2 +-
 requirements-dev.txt                      | 2 +-
 setup.py                                  | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/ci/deps/actions-310.yaml b/ci/deps/actions-310.yaml
index 369d27b8c97b9..d17d29ef38e7f 100644
--- a/ci/deps/actions-310.yaml
+++ b/ci/deps/actions-310.yaml
@@ -5,7 +5,7 @@ dependencies:
   - python=3.10
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31
diff --git a/ci/deps/actions-38-downstream_compat.yaml b/ci/deps/actions-38-downstream_compat.yaml
index 946e86bf62674..c11e5e5549dcb 100644
--- a/ci/deps/actions-38-downstream_compat.yaml
+++ b/ci/deps/actions-38-downstream_compat.yaml
@@ -6,7 +6,7 @@ dependencies:
   - python=3.8
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31
diff --git a/ci/deps/actions-38.yaml b/ci/deps/actions-38.yaml
index 2b07d5f9e89a7..71b03c2a81939 100644
--- a/ci/deps/actions-38.yaml
+++ b/ci/deps/actions-38.yaml
@@ -5,7 +5,7 @@ dependencies:
   - python=3.8
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31
diff --git a/ci/deps/actions-39.yaml b/ci/deps/actions-39.yaml
index de726e105a8f8..3cce3bda3915c 100644
--- a/ci/deps/actions-39.yaml
+++ b/ci/deps/actions-39.yaml
@@ -5,7 +5,7 @@ dependencies:
   - python=3.9
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31
diff --git a/ci/deps/actions-pypy-38.yaml b/ci/deps/actions-pypy-38.yaml
index eda35ee14ec65..1a3c73cb4ae2f 100644
--- a/ci/deps/actions-pypy-38.yaml
+++ b/ci/deps/actions-pypy-38.yaml
@@ -8,7 +8,7 @@ dependencies:
   - python=3.8[build=*_pypy] # TODO: use this once pypy3.8 is available
 
   # tools
-  - cython>=0.29.24
+  - cython>=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-asyncio
diff --git a/ci/deps/circle-38-arm64.yaml b/ci/deps/circle-38-arm64.yaml
index 0f57dc8058086..4f17c19d9f2a0 100644
--- a/ci/deps/circle-38-arm64.yaml
+++ b/ci/deps/circle-38-arm64.yaml
@@ -5,7 +5,7 @@ dependencies:
   - python=3.8
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31
diff --git a/doc/source/whatsnew/v1.4.3.rst b/doc/source/whatsnew/v1.4.3.rst
index f0e208a117068..85e5983f877e8 100644
--- a/doc/source/whatsnew/v1.4.3.rst
+++ b/doc/source/whatsnew/v1.4.3.rst
@@ -38,7 +38,7 @@ Bug fixes
 
 Other
 ~~~~~
--
+- The minimum version of Cython needed to compile pandas is now ``0.29.30`` (:issue:`41935`)
 -
 
 .. ---------------------------------------------------------------------------
diff --git a/requirements-dev.txt b/requirements-dev.txt
index f13da7709c157..a5556336e536b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ numpy>=1.18.5
 python-dateutil>=2.8.1
 pytz
 asv
-cython>=0.29.24
+cython>=0.29.30
 black==22.3.0
 cpplint
 flake8==4.0.1
diff --git a/setup.py b/setup.py
index 0418fe67c2f76..9740ba8e2500c 100755
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ def is_platform_mac():
 
 
 # note: sync with pyproject.toml, environment.yml and asv.conf.json
-min_cython_ver = "0.29.24"
+min_cython_ver = "0.29.30"
 
 try:
     from Cython import (

From 4d8fe68ade1687606f1f6373a39b949f1c3cc822 Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Fri, 27 May 2022 11:57:19 -0700
Subject: [PATCH 2/3] missed a file

---
 environment.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/environment.yml b/environment.yml
index 7c08fe2901086..c9c642567262a 100644
--- a/environment.yml
+++ b/environment.yml
@@ -15,7 +15,7 @@ dependencies:
   # The compiler packages are meta-packages and install the correct compiler (activation) packages on the respective platforms.
   - c-compiler
   - cxx-compiler
-  - cython>=0.29.24
+  - cython>=0.29.30
 
   # code checks
   - black=22.3.0

From 5feda7be3eb16f3856e87f9ded2e7267c5de7430 Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Fri, 27 May 2022 12:10:52 -0700
Subject: [PATCH 3/3] and another :(

---
 ci/deps/actions-38-minimum_versions.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci/deps/actions-38-minimum_versions.yaml b/ci/deps/actions-38-minimum_versions.yaml
index 786b304bdfc1d..f68e3e31b5433 100644
--- a/ci/deps/actions-38-minimum_versions.yaml
+++ b/ci/deps/actions-38-minimum_versions.yaml
@@ -7,7 +7,7 @@ dependencies:
   - python=3.8.0
 
   # test dependencies
-  - cython=0.29.24
+  - cython=0.29.30
   - pytest>=6.0
   - pytest-cov
   - pytest-xdist>=1.31