From ff6215fce383af2a87cb62f116791a7c285bbc29 Mon Sep 17 00:00:00 2001
From: Andrey Aristov <and@aristov.fr>
Date: Sun, 28 Dec 2025 02:42:25 +0100
Subject: [PATCH 1/3] upgrade for zarr v3 API

---
 .gitignore                | 3 ++-
 setup.cfg                 | 2 +-
 src/zarr_tools/convert.py | 6 ++++--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 275b1b8..73b42e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,5 @@ _version.py
 .tox
 venv
 build
-.coverage
\ No newline at end of file
+.coverage
+*.zarr/
diff --git a/setup.cfg b/setup.cfg
index a40e89c..70a94af 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,7 +27,7 @@ install_requires =
     dask
     fire
     nd2
-    zarr>=2.4,<3
+    zarr>=3.0
 python_requires = >=3.10
 include_package_data = True
 package_dir =
diff --git a/src/zarr_tools/convert.py b/src/zarr_tools/convert.py
index 90d79bf..7f7f6c5 100644
--- a/src/zarr_tools/convert.py
+++ b/src/zarr_tools/convert.py
@@ -6,6 +6,7 @@
 
 import dask.array as da
 import zarr
+from zarr.storage import LocalStore
 
 
 def to_zarr(
@@ -19,8 +20,9 @@ def to_zarr(
     """
     Saves multiscale zarr dataset, returns the path.zarr
     """
-    store = zarr.DirectoryStore(baseurl := path)
-    grp = zarr.group(store)
+    baseurl = path
+    store = LocalStore(baseurl)
+    grp = zarr.open_group(store, mode="a")
 
     print(baseurl)
     datasets = []

From 392a71f1c9102196f32559af328302f376f11162 Mon Sep 17 00:00:00 2001
From: Andrey Aristov <and@aristov.fr>
Date: Sun, 28 Dec 2025 02:54:35 +0100
Subject: [PATCH 2/3] python min version 3.11

---
 .github/workflows/python-package.yml | 2 +-
 .pre-commit-config.yaml              | 3 ++-
 setup.cfg                            | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 58baa42..1d43ae9 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -21,7 +21,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.11', '3.12']
 
     steps:
       - uses: actions/checkout@v2
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e71127c..b58577e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,6 +9,7 @@ repos:
     rev: v3.2.0
     hooks:
       - id: setup-cfg-fmt
+        args: [--min-py-version, "3.11"]
   - repo: https://github.com/PyCQA/flake8
     rev: 7.3.0
     hooks:
@@ -33,7 +34,7 @@ repos:
     rev: v3.21.2
     hooks:
       - id: pyupgrade
-        args: [--py38-plus, --keep-runtime-typing]
+        args: [--py311-plus, --keep-runtime-typing]
   # - repo: https://github.com/tlambert03/napari-plugin-checks
   #   rev: v0.2.0
   #   hooks:
diff --git a/setup.cfg b/setup.cfg
index 70a94af..c7077cf 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ install_requires =
     fire
     nd2
     zarr>=3.0
-python_requires = >=3.10
+python_requires = >=3.11
 include_package_data = True
 package_dir =
     =src

From e67199c615a1982f92470b0ae59915d29fe3aea7 Mon Sep 17 00:00:00 2001
From: Andrey Aristov <and@aristov.fr>
Date: Sun, 28 Dec 2025 03:05:21 +0100
Subject: [PATCH 3/3] update actions

---
 .github/workflows/python-package.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 1d43ae9..5d199f5 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -24,10 +24,10 @@ jobs:
         python-version: ['3.11', '3.12']
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -57,9 +57,9 @@ jobs:
     runs-on: ubuntu-latest
     if: contains(github.ref, 'tags')
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: "3.x"
       - name: Install dependencies