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Showing content from http://python.egenix.com/products/python/mxODBCConnect/2.1.4/changelog.html below:

eGenix.com: Products: Python: mxODBC Connect

mxODBC Connect Change Log

The change log includes a detailed description of all changes to this package in the recent releases.

Version: 2.1.4

Changes from 2.1.3 to 2.1.4: Security Enhancements mxODBC Connect Enhancements mxODBC API Enhancements MS SQL Server SAP Sybase ASE Fixes
Changes from 2.1.2 to 2.1.3: Security Enhancements mxODBC Connect Enhancements mxODBC API Enhancements MS SQL Server SAP Sybase ASE Fixes
Changes from 2.1.1 to 2.1.2: Security Enhancements mxODBC Connect Enhancements Changes from 2.1.0 to 2.1.1:

In this patch level release we have put great emphasis on enhancing the TLS/SSL setup of the mxODBC Connect product, addressing recent attacks on SSLv3 and improving the security defaults.

Security Enhancements mxODBC Connect Enhancements Asynchronous Processing
mxODBC API Enhancements SQL Server Teradata Misc

The complete list of changes in mxODBC 3.3.1 is available on the mxODBC changelog page.

Changes from 2.0.5 to 2.1.0: Update to the mxODBC 3.3 API

mxODBC Connect 2.1 makes most of the new mxODBC 3.3. APIs and enhancements available in the mxODBC Connect Client. This is a short summary of the available new features and enhancements.

Stored Procedures User Customizable Row Objects Fast Cursor Types More new Features mxODBC Connect API Enhancements Asynchronous Processing
Security Enhancements ODBC Driver/Manager Compatibility Enhancements unixODBC DataDirect Oracle MS SQL Server Sybase ASE IBM DB2 PostgreSQL MySQL Changes from 2.0.4 to 2.0.5: Security Enhancements Changes from 2.0.3 to 2.0.4: Security Enhancements Server Enhancements Client Enhancements
Performance Enhancements
[Connection_Example]
...
# Use the faster forward-only cursors on this connection
connection_cursortype = SQL.CURSOR_FORWARD_ONLY
The performance increase compared to mxODBC Connect 2.0.2 is enormous: from 2-3x faster executes/fetches for average queries, up to 300x faster for simple cases.

In mxODBC Connect 2.1, we will switch to using forward-only cursors per default for all database backends.


The effect is a lot smaller, but still noticeable: up to 2x faster executes/fetches with forward-only cursors, compared to mxODBC Connect 2.0.2.
Changes from 2.0.2 to 2.0.3: Security Enhancements Server Enhancements Client Enhancements
Performance Enhancements
# Connect to the remote database
from mx.ODBCConnect.Client import ServerSession
session = ServerSession(...)
ODBC = session.open()
connection = ODBC.DriverConnect(...)
# Use the faster forward-only cursors
connection.cursortype = ODBC.SQL.CURSOR_FORWARD_ONLY
# Cursors created on this connection will then default
# to forward only cursors
cursor = connection.cursor()
The performance increase compared to mxODBC Connect 2.0.2 is enormous: from 2-3x faster executes/fetches for average queries, up to 300x faster for simple cases.

In mxODBC Connect 2.1, we will switch to using forward-only cursors per default for all database backends.


The effect is a lot smaller, but still noticeable: up to 2x faster executes/fetches with forward-only cursors, compared to mxODBC Connect 2.0.2.
Changes from 2.0.1 to 2.0.2: Security Enhancements Server Enhancements Client Enhancements
Misc Changes from 2.0.0 to 2.0.1: API Enhancements: Server Enhancements: Client Enhancements:
Misc: Changes from 1.0.2 to 2.0.0: Integration:
API Enhancements: Asynchronous Execution:
Security: Fixes:
Misc:
Changes from 1.0.1 to 1.0.2: Changes from 1.0.0 to 1.0.1: Changes from 0.9.3 to 1.0.0: Changes from 0.9.2 to 0.9.3: Changes from 0.9.1 to 0.9.2:

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