Bump 3.14 to 3.14.5rc1

cpython-unix/build-cpython.sh

@@ -595,12 +595,6 @@ if [[ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_14}" && -n "${CROSS_COMPILING}" && "$
     PROFILE_TASK="${PROFILE_TASK} --ignore test_strftime_y2k"
 fi
 
-# On 3.14+ `test_json.test_recursion.TestCRecursion.test_highly_nested_objects_decoding` fails during
-# PGO due to RecursionError not being raised as expected. See https://github.com/python/cpython/issues/140125
-if [[ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_14}" ]]; then
-    PROFILE_TASK="${PROFILE_TASK} --ignore test_json"
-fi
-
 # PGO optimized / BOLT instrumented binaries segfault in a test_bytes test. Skip it.
 if [[ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_13}" && "${TARGET_TRIPLE}" == x86_64* ]]; then
     PROFILE_TASK="${PROFILE_TASK} --ignore test.test_bytes.BytesTest.test_from_format"
@@ -613,6 +607,11 @@ if [[ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_14}" ]]; then
     patch -p1 -i "${ROOT}/patch-python-configure-hacl-no-simd.patch"
 fi
 
+# See https://github.com/python/cpython/issues/149285
+if [[ "${PYTHON_MAJMIN_VERSION}" = "3.14" ]]; then
+    patch -p1 -i "${ROOT}/patch-test-xml-etree-deepcopy-recursion-depth-3.14.patch"
+fi
+
 # We use ndbm on macOS and BerkeleyDB elsewhere.
 if [[ "${PYBUILD_PLATFORM}" = macos* ]]; then
     CONFIGURE_FLAGS="${CONFIGURE_FLAGS} --with-dbmliborder=ndbm"

cpython-unix/patch-test-xml-etree-deepcopy-recursion-depth-3.14.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zanie Blue <contact@zanie.dev>
+Date: Sat, 2 May 2026 00:00:00 +0000
+Subject: [PATCH] gh-149285: Increase ElementTree deepcopy recursion test depth
+ (#149286)
+
+Backport of https://github.com/python/cpython/pull/149286.
+---
+ Lib/test/test_xml_etree.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Lib/test/test_xml_etree.py b/Lib/test/test_xml_etree.py
+--- a/Lib/test/test_xml_etree.py
++++ b/Lib/test/test_xml_etree.py
+@@ -3105,7 +3105,7 @@ class BadElementTest(unittest.TestCase):
+         # This should raise a RecursionError and not crash.
+         # See https://github.com/python/cpython/issues/148801.
+         root = cur = ET.Element('s')
+-        for _ in range(150_000):
++        for _ in range(500_000):
+             cur = ET.SubElement(cur, 'u')
+         with support.infinite_recursion():
+             with self.assertRaises(RecursionError):

pythonbuild/downloads.py

@@ -84,10 +84,10 @@
         "python_tag": "cp313",
     },
     "cpython-3.14": {
-        "url": "https://www.python.org/ftp/python/3.14.4/Python-3.14.4.tar.xz",
-        "size": 23855332,
-        "sha256": "d923c51303e38e249136fc1bdf3568d56ecb03214efdef48516176d3d7faaef8",
-        "version": "3.14.4",
+        "url": "https://www.python.org/ftp/python/3.14.5/Python-3.14.5rc1.tar.xz",
+        "size": 23895772,
+        "sha256": "f767b809df4376dd3dffd62a2e3ce90646a84cac04d0235943bc1f0c44c95780",
+        "version": "3.14.5rc1",
         "licenses": ["Python-2.0", "CNRI-Python"],
         "license_file": "LICENSE.cpython.txt",
         "python_tag": "cp314",