Update to SQLAlchemy 2.x (jupyter-server#521)

* update sqlalchemy to 2.x * Add SQLAlchemy 2.x requirement warning to README and readthedocs * change JupyterLab 3 "will reach" to "reached" * Remove "anywhere on earth" as it's not a relevant information anymore
nsingl00 · Jun 28, 2024 · 652120e · 652120e
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diff --git a/README.md b/README.md
@@ -18,7 +18,10 @@ details.
 - JupyterLab 3.x (for Jupyter Scheduler 1.x)
 
 > [!IMPORTANT]
-> JupyterLab 3 will reach its end of maintenance date on May 15, 2024, anywhere on Earth. As a result, we will not backport new features to the v1 branch supporting JupyterLab 3 after this date. Fixes for critical issues will still be backported until December 31, 2024. If you are still using JupyterLab 3, we strongly encourage you to **upgrade to JupyterLab 4 as soon as possible**. For more information, see [JupyterLab 3 end of maintenance](https://blog.jupyter.org/jupyterlab-3-end-of-maintenance-879778927db2) on the Jupyter Blog.
+> Starting with v2.7.0, Jupyter Scheduler requires SQLAlchemy 2.x instead of SQLAlchemy 1.x.
+
+> [!IMPORTANT]
+> JupyterLab 3 reached its end of maintenance date on May 15, 2024. As a result, we will not backport new features to the v1 branch supporting JupyterLab 3 after this date. Fixes for critical issues will still be backported until December 31, 2024. If you are still using JupyterLab 3, we strongly encourage you to **upgrade to JupyterLab 4 as soon as possible**. For more information, see [JupyterLab 3 end of maintenance](https://blog.jupyter.org/jupyterlab-3-end-of-maintenance-879778927db2) on the Jupyter Blog.
 
 ## Install
 

diff --git a/docs/users/index.md b/docs/users/index.md
@@ -26,9 +26,14 @@ jupyter labextension list
 and checking that both the `jupyter_scheduler` server extension and the
 `@jupyterlab/scheduler` prebuilt lab extension are enabled.
 
+:::{attention}
+:name: sqlalchemy-2.x-requirement
+Starting with v2.7.0, Jupyter Scheduler requires SQLAlchemy 2.x instead of SQLAlchemy 1.x.
+:::
+
 :::{attention}
 :name: jupyter-lab-3-end-of-maintenance
-JupyterLab 3 will reach its end of maintenance date on May 15, 2024, anywhere on Earth. As a result, we will not backport new features to the v1 branch supporting JupyterLab 3 after this date. Fixes for critical issues will still be backported until December 31, 2024. If you are still using JupyterLab 3, we strongly encourage you to **upgrade to JupyterLab 4 as soon as possible**. For more information, see [JupyterLab 3 end of maintenance](https://blog.jupyter.org/jupyterlab-3-end-of-maintenance-879778927db2) on the Jupyter Blog.
+JupyterLab 3 reached its end of maintenance date on May 15, 2024. As a result, we will not backport new features to the v1 branch supporting JupyterLab 3 after this date. Fixes for critical issues will still be backported until December 31, 2024. If you are still using JupyterLab 3, we strongly encourage you to **upgrade to JupyterLab 4 as soon as possible**. For more information, see [JupyterLab 3 end of maintenance](https://blog.jupyter.org/jupyterlab-3-end-of-maintenance-879778927db2) on the Jupyter Blog.
 :::
 
 ## Use

diff --git a/pyproject.toml b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     "traitlets~=5.0",
     "nbconvert~=7.0",
     "pydantic>=1.10,<3",
-    "sqlalchemy~=1.0",
+    "sqlalchemy>=2.0,<3",
     "croniter~=1.4",
     "pytz==2023.3",
     "fsspec==2023.6.0",