Snowflake Python APIs release notes for 2026¶

This article contains the release notes for the Snowflake Python APIs, including the following when applicable:

Version 1.13.2 (Sep 24, 2026)¶

simple_file_logging now creates its log file with owner-only permissions. It won’t write to a symlink or to a file owned by another user, and it raises PermissionError in those cases.
Each Root now connects using the TLS, proxy, and connection pool settings of its own Configuration, rather than those of the first Configuration used in the process. Connections are still shared between configurations whose settings match. SSL_CERT_FILE and HTTPS_PROXY continue to take precedence over Configuration.

Code Bundle API:
- Added typed BundleSpec and CodeBundleSpecification models for code bundles and code bundle executions.
- Added iter() support for code bundle executions.
Dynamic Table API:
- Added initialization_warehouse, frozen_where, backfill_from, default_ddl_collation, log_level, row_timestamp, cluster_by_raw, and start_at fields to DynamicTable.
- Added DataMetricSchedule, DataMetricCronSchedule, DataMetricMinutesSchedule, and DataMetricTriggerOnChangesSchedule models for data metric scheduling.
- Extended refresh_mode with ADAPTIVE and CUSTOM_INCREMENTAL values.

Task and DAG APIs:
- Added condition parameter to DAG to support setting a WHEN condition on the root task.
- Added the recursive argument to TaskResource.fetch_task_dependents.
- Added support for defining task schedules and target completion intervals at a granularity of seconds, including intervals under a minute.
- Added overlap_policy on Task and on the DAG root task.
- Added success_integration and execute_as_user on Task and DAGTask.
Code Bundle API:
- Added support for managing code bundles through root.databases[<db>].schemas[<schema>].code_bundles (create, iterate, fetch, add a version, execute, and drop).
- Added support for code bundle executions through root.code_bundle_execution (execute a code bundle from a stage location, and fetch the status of or cancel an execution).
- Added the _SNOWFLAKE_SKIP_ASYNC_EXEC_POLLING environment variable. When set to true, a request submitted with asyncExec=true that receives a 202 Accepted response returns that accepted response (carrying the job id) immediately, instead of polling the execution to completion. Transient-error retries, for example, 429/503/504, are unaffected.

copy.copy, copy.deepcopy, and pickling of IntervalSchedule and TargetCompletionInterval now work; previously they would raise an exception.
Security improvements - for more information, see CVE-2026-19594:
- Improved validation of path parameters; values consisting solely of dot-segments (. or ..) now raise a clear ValueError.
- Improved encoding of URL query parameters; resource names containing special characters, such as &, =, or #, are now percent-encoded correctly, preventing failures on rename, swap, and clone operations for resources whose names include such characters.
- Fixed DagRun._repr_html_() to correctly escape special characters in property values.
- Improved validation of single-quoted string literals used in stage paths; strings with unescaped embedded quotes are no longer incorrectly treated as valid.
- Improved sanitization of stage path values; backslash sequences immediately preceding a single quote are now doubled.

Proxy configuration through environment variables now honors both the uppercase HTTPS_PROXY and the lowercase https_proxy variable.
The CA bundle used for TLS verification now honors the SSL_CERT_FILE environment variable (both uppercase SSL_CERT_FILE and lowercase ssl_cert_file), allowing connections through corporate proxies with a custom trust store.

Added support for setting (set_tags), unsetting (unset_tags), and fetching tag assignments (get_tags). Tagging support for specific resources is introduced in the following Snowflake server releases:
- 10.3: Alert, database, database role, dynamic table, event table, image repository, network policy, notebook, password policy, pipe, procedure, role, schema, stream, table, task, user, user-defined function, view, warehouse.
- 10.4: API integration, catalog integration, compute pool, function, iceberg table, notification integration, Streamlit.

The DAGTask object type now accepts custom objects with a to_sql() method as task definitions.
The UserDefinedFunction object type now supports executing scalar UDFs using the execute method.

Creating, fetching, and listing stored procedures that use a staged handler (where the body property is empty) no longer raises a ValidationError.
Pydantic deprecation warnings related to class-based config and the update_forward_refs, parse_obj, and _iter methods no longer occur.