New stream filters
New Methods
Migrating from PHP 5.2.x to PHP 5.3.x
PHP Manual

## New Class Constants

Several new class constants were introduced in 5.3.0:

PDO_FIREBIRD:

- `PDO::FB_ATTR_DATE_FORMAT` - Sets the format for dates.
- `PDO::FB_ATTR_TIME_FORMAT` - Sets the format for time.
- `PDO::FB_ATTR_TIMESTAMP_FORMAT` - Sets the format for timestamps.

New stream filters
New Methods
Migrating from PHP 5.2.x to PHP 5.3.x
PHP Manual