From 476c93cdc7abc02fe4f13b4b39b19db1301d2a03 Mon Sep 17 00:00:00 2001
From: Thomas Li <47963215+lithomas1@users.noreply.github.com>
Date: Fri, 27 May 2022 14:06:23 -0700
Subject: [PATCH 1/2] Backport PR #47150: DEPS: Bump Cython

---
 ci/deps/actions-310.yaml                  | 2 +-
 ci/deps/actions-38-downstream_compat.yaml | 2 +-
 ci/deps/actions-38-minimum_versions.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 +-
 environment.yml                           | 2 +-
 requirements-dev.txt                      | 2 +-
 setup.py                                  | 2 +-
 11 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/ci/deps/actions-310.yaml b/ci/deps/actions-310.yaml
index dac1219245e84..7a879b5ac9648 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 01415122e6076..cd501b1e018ef 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-minimum_versions.yaml b/ci/deps/actions-38-minimum_versions.yaml
index f3a967f67cbc3..f6c3f3855aa02 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
diff --git a/ci/deps/actions-38.yaml b/ci/deps/actions-38.yaml
index 79cd831051c2f..4d2ffbfbd9ce5 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 1c681104f3196..202db035a6c52 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 66fedccc5eca7..5d3f79602ed37 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/environment.yml b/environment.yml
index 0fbfb8236a135..83b00c0dd6421 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
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5ede7b99a3d22..05a9f0426440d 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 db65ea72e4a96..ec3fa3c0433f4 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 7e5c3c1755fd32c77cae16db251b0faf37ef2049 Mon Sep 17 00:00:00 2001
From: Simon Hawkins <simonjayhawkins@gmail.com>
Date: Sat, 28 May 2022 09:05:13 +0000
Subject: [PATCH 2/2] cython==0.29.30 in ci/deps/actions-310-numpydev.yaml

---
 ci/deps/actions-310-numpydev.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci/deps/actions-310-numpydev.yaml b/ci/deps/actions-310-numpydev.yaml
index 401be14aaca02..2ac97cc479196 100644
--- a/ci/deps/actions-310-numpydev.yaml
+++ b/ci/deps/actions-310-numpydev.yaml
@@ -16,7 +16,7 @@ dependencies:
   - pytz
   - pip
   - pip:
-    - cython==0.29.24 # GH#34014
+    - cython==0.29.30 # GH#34014
     - "--extra-index-url https://pypi.anaconda.org/scipy-wheels-nightly/simple"
     - "--pre"
     - "numpy"