3.10.1

• v3.10.1(May 21, 2024)

  • Removed an incorrect error log message that could occur during arrow data conversion.

3.10.0

• v3.10.0(April 29,2024)

  • Added support for structured types to fetch_pandas_all.
  • Fixed an issue relating to incorrectly formed China S3 endpoints.

3.9.1

• v3.9.1(April 22,2024)

  • Fixed an issue that caused a HTTP 400 error when connecting to a China endpoint.

3.9.0

• v3.9.0(April 20,2024)

  • Added easy logging configuration so that users can easily generate log file by setup log config in $SNOWFLAKE_HOME/config.toml.
  • Improved s3 acceleration logic when connecting to China endpoint.

3.8.1

• v3.8.1(April 09, 2024)

  • Reverted the change "Updated write_pandas to skip TABLE IF NOT EXISTS in truncate mode." introduced in v3.8.0 (yanked) as it's a breaking change. write_pandas will be fixed in the future in a non-breaking way.

• v3.8.0(April 04,2024)

  • Improved externalbrowser auth in containerized environments
    • Instruct browser to not fetch /favicon on success page
    • Simple retry strategy on empty socket.recv
    • Add SNOWFLAKE_AUTH_SOCKET_REUSE_PORT flag (usage: SNOWFLAKE_AUTH_SOCKET_REUSE_PORT=true) to set the underlying socket's SO_REUSEPORT flag (described in the socket man page)
      • Useful when the randomized port used in the localhost callback url is being followed before the container engine completes port forwarding to host
      • Statically map a port between your host and container and allow that port to be reused in rapid succession with:
        SF_AUTH_SOCKET_PORT=3037 SNOWFLAKE_AUTH_SOCKET_REUSE_PORT=true poetry run python somescript.py
    • Add SNOWFLAKE_AUTH_SOCKET_MSG_DONTWAIT flag (usage: SNOWFLAKE_AUTH_SOCKET_MSG_DONTWAIT=true) to make a non-blocking socket.recv call and retry on Error
      • Consider using this if running in a containerized environment and externalbrowser auth frequently hangs while waiting for callback
      • NOTE: this has not been tested extensively, but has been shown to improve the experience when using WSL
  • Added support for parsing structured type information in schema queries.
  • Bumped platformdirs from >=2.6.0,<4.0.0 to >=2.6.0,<5.0.0
  • Updated diagnostics to use system$allowlist instead of system$whitelist.
  • Updated write_pandas to skip TABLE IF NOT EXISTS in truncate mode.
  • Improved cleanup logic for connection to rely on interpreter shutdown instead of the __del__ method.
  • Updated the logging level from INFO to DEBUG when logging the executed query using SnowflakeCursor.execute.
  • Fixed a bug that the truncated password in log is not masked.

3.7.1

• v3.7.1(February 21, 2024)

  • Bumped pandas dependency from >=1.0.0,<2.2.0 to >=1.0.0,<3.0.0.
  • Bumped cryptography dependency from <42.0.0,>=3.1.0 to >=3.1.0,<43.0.0.
  • Bumped pyOpenSSL dependency from >=16.2.0,<24.0.0 to >=16.2.0,<25.0.0.
  • Fixed a memory leak in decimal data conversion.
  • Fixed a bug where write_pandas wasn't truncating the target table.
  • Bumped keyring dependency lower bound to 23.1.0 to address security vulnerability.

3.7.0

• v3.7.0(January 25,2024)

  • Added a new boolean parameter force_return_table to SnowflakeCursor.fetch_arrow_all to force returning pyarrow.Table in case of zero rows.
  • Cleanup some C++ code warnings and performance issues.
  • Added support for Python 3.12
  • Make local testing more robust against implicit assumptions.
  • Fixed PyArrow Table type hinting
  • Added support for connecting using an existing connection via the session and master token.
  • Added support for connecting to Snowflake by authenticating with multiple SAML IDP using external browser.
  • Fixed compilation issue due to missing cstdint header on gcc13.
  • Improved config permissions warning message.

3.6.0

• v3.6.0(December 09,2023)

  • Added support for Vector types
  • Changed urllib3 version pin to only affect Python versions < 3.10.
  • Support for private_key_file and private_key_file_pwd connection parameters
  • Added a new flag expired to SnowflakeConnection class, that keeps track of whether the connection's master token has expired.
  • Fixed a bug where date insertion failed when date format is set and qmark style binding is used.

3.5.0

• v3.5.0(November 13,2023)

  • Version 3.5.0 is the snowflake-connector-python purely built upon apache arrow-nanoarrow project.
    • Reduced the wheel size to ~1MB and installation size to ~5MB.
    • Removed a hard dependency on a specific version of pyarrow.
  • Deprecated the usage of the following class/variable/environment variable for the sake of pure nanoarrow converter:
    • Deprecated class snowflake.connector.cursor.NanoarrowUsage.
    • Deprecated environment variable NANOARROW_USAGE.
    • Deprecated module variable snowflake.connector.cursor.NANOARROW_USAGE.

3.4.1

• v3.4.1(November 08, 2023)

  • Bumped vendored urllib3 to 1.26.18
  • Bumped vendored requests to 2.31.0