> ## Documentation Index > Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt > Use this file to discover all available pages before exploring further. # Changelog > Detailed list of all changes. Read the [release notes](./release_notes) for a higher level view. Atoti Python SDK implements [Atoti version policy](https://docs.activeviam.com/eos). The changes below are relative to Atoti Python SDK [0.9.16](https://docs.activeviam.com/engine/python-sdk/0.9/changelog#0-9-16). ### Added * [`atoti-limits`](./api/atoti_limits) LIM-2228. * [`atoti.Session.chat`](./api/atoti.Session.chat) PIVOT-14122. * [`atoti.Cube.auto_explain`](./api/atoti.Cube.auto_explain) PYTHON-824. * [`atoti_ai.AiConfig.disclaimer`](./api/atoti_ai.AiConfig#atoti_ai.AiConfig.disclaimer) PIVOT-14426. * [`atoti.SessionConfig.base_path`](./api/atoti.config.SessionConfig#atoti.SessionConfig.base_path) PYTHON-917. * [`atoti.Cube.dimensions`](./api/atoti.Cube.dimensions) and [`Dimension`](./api/atoti.Dimension) PIVOT-14220. Use [`atoti.Dimension.description`](./api/atoti.Dimension.description) to provide more context to the [`Chat`](./api/atoti_ai.Chat). * [`atoti.aggregate_provider.AggregateProviders.recommender`](./api/atoti.aggregate_provider.AggregateProviders.recommender) PYTHON-668. * The history of executed queries is recorded when the [`observability plugin`](./api/atoti_observability) plugin is enabled and [`atoti.SessionConfig.user_content_storage`](./api/atoti.config.session_config#atoti.SessionConfig.user_content_storage) is not `None` PYTHON-876. It is accessible in Admin UI (`f"{session.url}/admin"`)'s **Query history** tab. ### Changed * [`AiConfig`](./api/atoti_ai.AiConfig), [`atoti_ai_amazon_bedrock.ConnectionConfig`](./api/atoti_ai_amazon_bedrock.ConnectionConfig), [`atoti_ai_amazon_bedrock.ChatConfig`](./api/atoti_ai_amazon_bedrock.ChatConfig), [`atoti_ai_openai.ConnectionConfig`](./api/atoti_ai_openai.ConnectionConfig), and [`atoti_ai_openai.ChatConfig`](./api/atoti_ai_openai.ChatConfig) have been stabilized: ```python theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} with tt.experimental({"ai"}): # [!code --] ai_config = AiConfig( connection=ConnectionConfig(...), chat=ChatConfig(...), ) session_config = tt.SessionConfig(ai=ai_config) ``` * [`atoti.Table.load(error_handling)`](./api/atoti.Table.load#atoti.Table.load.error_handling) defaults to `"fail"` instead of `"log"` PIVOT-9937. To restore the previous behavior: ```python theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} table.load( csv_load, error_handling="log", # [!code ++] ) ``` * [`atoti.NaturalOrder`](./api/atoti.order.NaturalOrder) compares digit sequences in strings by their numeric value instead of character by character PYTHON-908. [`String`](./api/atoti.type#atoti.type.STRING) or [`Object`](./api/atoti.type#atoti.type.OBJECT) levels default to the new [`atoti.LexicographicalOrder`](./api/atoti.order.LexicographicalOrder), which preserves the previous ordering. * [`atoti-storage-aws`](./api/atoti_storage_aws)'s commitment policy changed to [REQUIRE\_ENCRYPT\_REQUIRE\_DECRYPT](https://docs.aws.amazon.com/encryption-sdk/latest/developer-guide/python-example-code.html) PIVOT-13185. Existing data on S3 encrypted with older AWS encryption clients (v1 and v2) must be re-encrypted before [`loading`](./api/atoti.Table.load) it. #### Dependencies Atoti Python SDK is versioned in lockstep with Atoti Server. Each `6.2.x` Python SDK release depends on the matching `6.2.x` Server release. * Upgraded Atoti Server to [6.2.0](https://docs.activeviam.com/products/atoti/server/6.2/docs/release/whats_new/#620). * Upgraded Atoti UI to [5.2.26](https://docs.activeviam.com/data-visualization/atoti-ui/5.2/releases-and-upgrades/release-notes#5-2-26). * Bumped minimum required Python version to [3.12](https://docs.python.org/3/whatsnew/3.12.html) as per [NEP 29](https://numpy.org/neps/nep-0029-deprecation_policy.html#support-table) PYTHON-810. * Bumped [`atoti`](./api/atoti)'s minimum required Pandas version to [3.0.3](https://pandas.pydata.org/pandas-docs/version/3.0/whatsnew/v3.0.3.html) PYTHON-740. * [`DataFrame`](https://pandas.pydata.org/pandas-docs/version/3.0/reference/api/pandas.DataFrame.html#pandas.DataFrame)s returned by [`atoti.Table.query()`](./api/atoti.Table.query), [`atoti.Table.head()`](./api/atoti.Table.head), [`atoti.Session.query_mdx()`](./api/atoti.Session.query_mdx), and [`atoti.Cube.query()`](./api/atoti.Cube.query) use `datetime64[us]` (microsecond precision) instead of `datetime64[ns]` (nanosecond precision). * [`pyarrow.large_string()`](https://arrow.apache.org/docs/python/generated/pyarrow.large_string.html#pyarrow.large_string) columns are supported by [`atoti.Table.load()`](./api/atoti.Table.load). * Bumped [`atoti-jupyter`](./api/atoti_jupyterlab)'s minimum required JupyterLab version to [4.6.0](https://jupyterlab.readthedocs.io/en/4.6.x/getting_started/changelog.html#v4-6). * Migrated [`atoti.Client.http_client`](./api/atoti.Client.http_client) from httpx to [httpx2](https://httpx2.pydantic.dev) PYTHON-903. * The [`atoti-parquet`](./api/atoti_parquet) plugin is not installed by default anymore. Add its extra to import [`ParquetLoad`](./api/atoti_parquet.ParquetLoad): ```bash theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} uv add atoti # [!code --] uv add atoti[parquet] # [!code ++] ``` ### Deprecated * `atoti.Hierarchy.dimension_default` PIVOT-14220. Use [`atoti.Dimension.default_hierarchy`](./api/atoti.Dimension.default_hierarchy) instead: ```python theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} d, h = cube.dimensions, cube.hierarchies h["Geo", "Country"].dimension_default = True # [!code --] d["Geo"].default_hierarchy = h["Geo", "Country"] # [!code ++] ``` ### Removed Everything deprecated in the [0.9.0 to 0.9.16 releases](https://docs.activeviam.com/engine/python-sdk/0.9/changelog) has been removed. Upgrade to `0.9.16` and resolve all deprecation warnings before upgrading to `6.2.0`. * Support for [connecting](./api/atoti.Session.connect) to Atoti servers older than [6.0.0-M1](https://assets.activeviam.com/products/atoti/server/6.0/docs/release/changelog/#600). * `"Object[]"` data type. Use `"Object"` or the other strongly typed array data types instead. * `atoti.QueryCube.unload_members_from_data_cube()` PIVOT-14028. * `atoti_ai_openai.ChatConfig.completions_path`: ```python theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} chat_config = ChatConfig( model="gpt-5", completions_path="/chat/completions", # [!code --] ) ``` * `atoti_ai_openai.ChatConfig.http_headers`. Use [`atoti_ai_openai.ConnectionConfig.custom_headers`](./api/atoti_ai_openai.ConnectionConfig#atoti_ai_openai.ConnectionConfig.custom_headers) instead: ```python theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} chat_config = ChatConfig( model="gpt-5", http_headers={"X-Header": "value"}, # [!code --] ) connection_config = ConnectionConfig( custom_headers={"X-Header": "value"}, # [!code ++] ) ``` * `atoti_ai_openai.ChatConfig.retry_max_attempts` and the other `retry_*` attributes. Use [`atoti_ai_openai.ConnectionConfig.max_retries`](./api/atoti_ai_openai.ConnectionConfig#atoti_ai_openai.ConnectionConfig.max_retries) and [`atoti_ai_openai.ConnectionConfig.timeout`](./api/atoti_ai_openai.ConnectionConfig#atoti_ai_openai.ConnectionConfig.timeout) instead: ```python theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}} chat_config = ChatConfig( model="gpt-5", retry_max_attempts=3, # [!code --] ) connection_config = ConnectionConfig( max_retries=3, # [!code ++] timeout=datetime.timedelta(seconds=30), # [!code ++] ) ``` * `atoti_ai_openai.ConnectionConfig.project_id`. * `atoti_directquery_snowflake.ConnectionConfig.array_agg_wrapper_function_name` PIVOT-10231. Snowflake's built-in `ARRAY_AGG` function is faster, so the wrapper UDF is no longer needed.