Release notes
=============

3.x releases
############

Version 3.0 (In Development)
----------------------------

#) Dropped support for Python 2. Support is now for Python 3.5 and higher.
#) Added input and output type handlers on cursors and connections. This
   enables the default types to be overridden if desired. See the documentation
   for more details.
#) Added better support for 64-bit Python.
#) Eliminated compiler warnings; other minor tweaks to improve error handling.


Older versions
##############

Version 2.0.1
-------------

#) Removed memory leak that occurred when binding parameters to a cursor;
   thanks to Robert Ritchie and Don Reid for discovering this.
#) Remove the password from the DSN in order to eliminate potential security
   leaks.
#) Improve performance when logging is disabled or not at level DEBUG by
   avoiding the entire attempt to log bind variable values.
#) Use the size value rather than the length value when defining result set
   variables since the length value is for the length of the column name;
   thanks to Heran Quan for the patch.
#) Added support for Python 3.2.


Version 2.0
-----------

#) Added support for Python 3.x and Unicode.
#) Added support for 64-bit Python installations.
#) Added test suites for MySQL, PostgreSQL and SQL Server.
#) Added support for cursor nextset().
#) Added support for cursor execdirect() which calls SQLExecDirect() instead
   of SQLExecute() which can be necessary in order to work around bugs in
   various ODBC drivers.
#) Added support for creating variables and for specifying input and output
   converters as in cx_Oracle.
#) Added support for deferred type assignment for cursor executemany() as in
   cx_Oracle.
#) Fixed a number of bugs found by testing against various ODBC drivers.


Version 1.2
-----------

#) Added support for time data as requested by Dmitry Solitsky.
#) Added support for Python 2.4 as requested by Lukasz Szybalski.
#) Added support for setting the autocommit flag in the connection constructor
   since some drivers do not support transactions and raise a "driver not
   capable" exception if any attempt is made to turn autocommit off; thanks to
   Carl Karsten for working with me to resolve this problem.
#) Added support for calculating the size and display size of columns in the
   description attribute of cursors as requested by Carl Karsten.
#) Use SQLFreeHandle() rather than SQLCloseCursor() since closing a cursor in
   the ODBC sense is not the same as closing a cursor in the DB API sense and
   caused strange exceptions to occur if no query was executed before calling
   cursor.close().
#) Added additional documentation to README.txt as requested by Lukasz
   Szybalski.
#) Tweaked setup script and associated configuration files to make it easier
   to build and distribute; better support for building with cx_Logging if
   desired.


Version 1.1
-----------

#) Added support for determining the columns, column privileges, foreign keys,
   primary keys, procedures, procedure columns, tables and table privileges
   available in the catalog as requested by Dmitry Selitsky.
#) Added support for getting/setting the autocommit flag for connections.
#) Added support for getting/setting the cursor name which is useful for
   performing positioned updates and deletes (as in delete from X where
   current of cursorname).
#) Explicitly set end of rows when SQL_NO_DATA is returned from SQLFetch() as
   some drivers do not properly set the number of rows fetched.