diff --git a/.github/workflows/cibuildwheel.yml b/.github/workflows/cibuildwheel.yml
index 916a02e8c..8a002c1c1 100644
--- a/.github/workflows/cibuildwheel.yml
+++ b/.github/workflows/cibuildwheel.yml
@@ -74,12 +74,12 @@ jobs:
       shell: bash
       # On PRs we run only oldest and newest Python versions to reduce CI load.
       # Skips pypy and musllinux everywhere.
-      # We are building 310, 311 and 314 for now.
+      # We are building 311 and 315 for now.
       # (3.11 is the oldest version for which we support abi3 wheels)
       # These needs to rotate every new Python release.
       run: |
         set -x
-        echo "CIBW_BUILD=cp310-* cp311-* cp314-* cp314t-*" >> $GITHUB_ENV
+        echo "CIBW_BUILD=cp311-* cp315-* cp315t-*" >> $GITHUB_ENV
         set +x
 
       if: ${{ github.event_name }} == "pull_request"
@@ -198,8 +198,8 @@ jobs:
     needs: [build_bdist, build_sdist, build_wheels_winmac, build_wheels_windows_arm]
     name: "Publish to PyPI"
     runs-on: ubuntu-22.04
-    # upload to PyPI for every tag starting with 'v'
-    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/v')
+    # upload to PyPI when github release made.
+    if: github.event_name == 'release' && github.event.action == 'published'
     steps:
     - uses: actions/download-artifact@v8
       with:
diff --git a/.github/workflows/miniconda.yml b/.github/workflows/miniconda.yml
index c35d81c16..b9c7a0668 100644
--- a/.github/workflows/miniconda.yml
+++ b/.github/workflows/miniconda.yml
@@ -13,11 +13,11 @@ jobs:
     strategy:
       matrix:
         python-version: [
-            ["python", "3.10"],
             ["python", "3.11"],
             ["python", "3.12"],
             ["python", "3.13"],
             ["python", "3.14"],
+            ["python", "3.15"],
             ["python-freethreading", "3.14" ],
         ]
         os: [windows-latest, ubuntu-latest, macos-latest]
diff --git a/Changelog b/Changelog
index 1fda87c1a..3791d22fc 100644
--- a/Changelog
+++ b/Changelog
@@ -1,7 +1,7 @@
- version 1.7.4.1 (tag v1.7.4.1rel)
- =================================
+ version 1.7.5 (tag v1.7.5rel)
+ =============================
+ * remove python 3.10 support (it reaches EOL October 31, 2026).
  * Reject fractional scalar indices instead of silently truncating reads or writes (issue #1350).
- * Keep a numpy pin for Windows ARM64 on Python 3.10 so lockers can resolve that environment (issue #1491).
  * Preserve surviving dimensions and decoded types for empty orthogonal selections,
    including empty integer indices and all-false masks (PR #1499).
  * Convert non-native-endian numeric attributes to native byte order before writing (issue #1502).
diff --git a/README.md b/README.md
index c5acc70c2..35a5f0142 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@
 ## News
 For details on the latest updates, see the [Changelog](https://github.com/Unidata/netcdf4-python/blob/master/Changelog).
 
+10/17/2026:  Version [1.7.5](https://pypi.python.org/pypi/netCDF4/1.7.5) released.  See Changelog for details.
+
 1/5/2026:  Version [1.7.4](https://pypi.python.org/pypi/netCDF4/1.7.4) released.  Compression plugins now included in wheels, windows/arm64 and
 free-threaded python wheels provided.   Automatic conversion of character arrays <--> string arrays works for Unicode (not just ascii) strings.
 WARNING:  netcdf-c is not thread-safe and netcdf4-python does have internal locking so expect segfaults if you
diff --git a/pyproject.toml b/pyproject.toml
index a3266d86d..4983136bc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ description = "Provides an object-oriented python interface to the netCDF versio
 authors = [
   {name = "Jeff Whitaker", email = "whitaker.jeffrey@gmail.com"},
 ]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 keywords = [
     "numpy", "netcdf", "data", "science", "network", "oceanography",
     "meteorology", "climate",
@@ -25,11 +25,11 @@ license-files = ["LICENSE"]
 classifiers = [
     "Development Status :: 3 - Alpha",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Intended Audience :: Science/Research",
     "Topic :: Software Development :: Libraries :: Python Modules",
     "Topic :: System :: Archiving :: Compression",
@@ -39,11 +39,7 @@ dependencies = [
     "cftime",
     "certifi",
     "packaging",
-    "numpy>=2.3.0; platform_system == 'Windows' and platform_machine == 'ARM64' and python_version >= '3.11'",
-    # Windows ARM64 + Python 3.10 has no numpy>=2.3.0 wheel. Keep the older
-    # pin there so lockers (e.g. uv lock --python 3.10) can still resolve
-    # that environment. See issue #1491.
-    "numpy>=1.21.2; platform_system != 'Windows' or platform_machine != 'ARM64' or python_version < '3.11'",
+    "numpy>=1.23.2",
 ]
 dynamic = ["version"]
 
diff --git a/src/netCDF4/_netCDF4.pyx b/src/netCDF4/_netCDF4.pyx
index 123732190..fec74fdcc 100644
--- a/src/netCDF4/_netCDF4.pyx
+++ b/src/netCDF4/_netCDF4.pyx
@@ -1,4 +1,4 @@
-"""Version 1.7.4.1
+"""Version 1.7.5
 -------------
 
 # Introduction
@@ -1283,7 +1283,7 @@ import sys
 import functools
 from typing import Union
 
-__version__ = "1.7.4.1"
+__version__ = "1.7.5"
 
 # Initialize numpy
 import posixpath