NO-SNOW: Prepare release v1.40.0

.github/workflows/precommit.yml

@@ -575,6 +575,16 @@ jobs:
         run: uv pip install -U setuptools pip wheel --system
       - name: Install tox
         run: uv pip install tox --system
+      - if: ${{ matrix.os == 'macos-latest' && matrix.cloud-provider == 'aws' }}
+        name: Check AutoSwitchBackend default value
+        # SNOW-2389912: Ensure hybrid is correctly enabled by default. We can't use pytest because
+        # our test suite sets the AutoSwitchBackend variable explicitly.
+        run: |
+          python -m tox -e "py${PYTHON_VERSION}-snowparkpandashybridcheck_sessionfirst-modin-ci" \
+          && python -m tox -e "py${PYTHON_VERSION}-snowparkpandashybridcheck_pluginfirst-modin-ci"
+        env:
+          PYTHON_VERSION: ${{ matrix.python-version }}
+          cloud_provider: ${{ matrix.cloud-provider }}
         # only run doctest for macos on aws
       - if: ${{ matrix.os == 'macos-latest' && matrix.cloud-provider == 'aws' }}
         name: Run Snowpark pandas API doctests

CHANGELOG.md

@@ -1,14 +1,9 @@
 # Release History
 
-## 1.40.0 (YYYY-MM-DD)
+## 1.40.0 (2025-10-06)
 
 ### Snowpark Python API Updates
 
-#### Bug Fixes
-
-- Fixed a bug that `DataFrame.limit()` fail if there is parameter binding in the executed SQL when used in non-stored-procedure/udxf environment.
-- Added an experimental fix for a bug in schema query generation that could cause invalid sql to be genrated when using nested structured types.
-
 #### New Features
 
 - Added a new module `snowflake.snowpark.secrets` that provides Python wrappers for accessing Snowflake Secrets within Python UDFs and stored procedures that execute inside Snowflake.
@@ -106,6 +101,8 @@
 
 #### Bug Fixes
 
+- Fixed a bug that `DataFrame.limit()` fail if there is parameter binding in the executed SQL when used in non-stored-procedure/udxf environment.
+- Added an experimental fix for a bug in schema query generation that could cause invalid sql to be generated when using nested structured types.
 - Fixed multiple bugs in `DataFrameReader.dbapi` (PuPr):
   - Fixed UDTF ingestion failure with `pyodbc` driver caused by unprocessed row data.
   - Fixed SQL Server query input failure due to incorrect select query generation.
@@ -127,7 +124,6 @@
 
 - Updated the supported `modin` versions to >=0.36.0 and <0.38.0 (was previously >= 0.35.0 and <0.37.0).
 
-
 #### New Features
 - Added support for `DataFrame.query` for dataframes with single-level indexes.
 - Added support for `DataFrameGroupby.__len__` and `SeriesGroupBy.__len__`.
@@ -140,6 +136,16 @@
 - When hybrid execution is enabled, `pd.merge`, `pd.concat`, `DataFrame.merge`, and `DataFrame.join` may now move arguments to backends other than those among the function arguments.
 - Improved performance of `DataFrame.to_snowflake` and `pd.to_snowflake(dataframe)` for large data by uploading data via a parquet file. You can control the dataset size at which Snowpark pandas switches to parquet with the variable `modin.config.PandasToSnowflakeParquetThresholdBytes`.
 
+## 1.39.1 (2025-09-25)
+
+### Snowpark Python API Updates
+
+#### Bug Fixes
+
+
+- Added an experimental fix for a bug in schema query generation that could cause invalid sql to be generated when using nested structured types.
+
+
 ## 1.39.0 (2025-09-17)
 
 ### Snowpark Python API Updates

recipe/meta.yaml

@@ -1,5 +1,5 @@
 {% set name = "snowflake-snowpark-python" %}
-{% set version = "1.39.0" %}
+{% set version = "1.40.0" %}
 {% set noarch_build = (os.environ.get('SNOWFLAKE_SNOWPARK_PYTHON_NOARCH_BUILD', 'false')) == 'true' %}
 {% set build_number = os.environ.get('SNOWFLAKE_SNOWPARK_PYTHON_BUILD_NUMBER', 0) %}
 

src/snowflake/snowpark/session.py

@@ -759,13 +759,16 @@ def __init__(
             try:
                 from modin.config import AutoSwitchBackend
 
-                pandas_hybrid_execution_enabled: bool = (
-                    self._conn._get_client_side_session_parameter(
-                        _SNOWPARK_PANDAS_HYBRID_EXECUTION_ENABLED,
-                        AutoSwitchBackend().get(),
-                    )
+                pandas_hybrid_execution_enabled: Union[
+                    bool, None
+                ] = self._conn._get_client_side_session_parameter(
+                    _SNOWPARK_PANDAS_HYBRID_EXECUTION_ENABLED, None
                 )
-                AutoSwitchBackend.put(pandas_hybrid_execution_enabled)
+                # Only set AutoSwitchBackend if the session parameter was already set.
+                # snowflake.snowpark.modin.plugin sets AutoSwitchBackend to True if it was
+                # not already set, so we should not change the variable if it's in its default state.
+                if pandas_hybrid_execution_enabled is not None:
+                    AutoSwitchBackend.put(pandas_hybrid_execution_enabled)
             except Exception:
                 # Continue session initialization even if Modin configuration fails
                 pass

src/snowflake/snowpark/version.py

@@ -2,4 +2,4 @@
 
 
 # Update this for the versions
-VERSION = (1, 39, 0)
+VERSION = (1, 40, 0)

tests/ast/data/DataFrame.agg.test

@@ -508,6 +508,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.ai.test

@@ -2146,6 +2146,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.col_ilike.test

@@ -239,6 +239,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.collect.test

@@ -511,6 +511,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.count.test

@@ -228,6 +228,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.count2.test

@@ -315,6 +315,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.create_or_replace.test

@@ -580,6 +580,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.cross_join.lsuffix.test

@@ -169,6 +169,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.cross_join.rsuffix.test

@@ -169,6 +169,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.cross_join.suffix.test

@@ -172,6 +172,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.describe.test

@@ -192,6 +192,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.flatten.test

@@ -175,6 +175,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.indexers.test

@@ -207,6 +207,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.inner.column.test

@@ -239,6 +239,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.inner.column_list.test

@@ -201,6 +201,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.inner.column_list_predicate.test

@@ -326,6 +326,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.inner.predicate.test

@@ -287,6 +287,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.inner.predicate_rsuffix.test

@@ -277,6 +277,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.left_outer.column.test

@@ -201,6 +201,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join.right_outer.predicate.test

@@ -218,6 +218,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.join_table_function.test

@@ -263,6 +263,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.natural_join.test

@@ -169,6 +169,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.pivot.test

@@ -746,6 +746,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.select_expr.test

@@ -359,6 +359,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.stat.test

@@ -1647,6 +1647,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.to_df.test

@@ -172,6 +172,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.to_local_iterator.test

@@ -539,6 +539,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.to_pandas.test

@@ -298,6 +298,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.to_pandas_batch.test

@@ -298,6 +298,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.unpivot.test

@@ -237,6 +237,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/DataFrame.write.test

@@ -4727,6 +4727,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/Dataframe.cube.test

@@ -520,6 +520,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/Dataframe.distinct.test

@@ -89,6 +89,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/Dataframe.drop_duplicates.test

@@ -278,6 +278,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/Dataframe.drop_duplicates_snow1874622.test

@@ -525,6 +525,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/Dataframe.filter.test

@@ -382,6 +382,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"

tests/ast/data/Dataframe.getitem.test

@@ -273,6 +273,6 @@ client_language {
 }
 client_version {
   major: 1
-  minor: 39
+  minor: 40
 }
 id: "\003U\"\366q\366P\346\260\261?\234\303\254\316\353"