Database abstraction broken up into controller, connector, query builder, and schema manager, each independently configurable via YAML / Injector
Creation of new DBQueryGenerator for database specific generation of SQL
Support for parameterised queries, move of code base to use these over escaped conditions
Refactor of SQLQuery into separate query classes for each of INSERT UPDATE DELETE and SELECT
Support for PDO
Installation process upgraded to use new ORM
SS_DatabaseException created to handle database errors, maintaining details of raw sql and parameter details for user code designed interested in that data.
Renamed DB static methods to conform correctly to naming conventions (e.g. DB::getConn -> DB::get_conn)
3.2 upgrade docs
Performance Optimisation and simplification of code to use more concise API
API Ability for database adapters to register extensions to ConfigureFromEnv.php
API CHANGE Removed ModelAdmin->ResultColumns()/ColumnSelectionField, selection of own fields no longer possible through the UI, to be replaced by a more generic GridField component
API CHANGE: Removed pagination related methods from DataObjectSet and implemented them on PaginatedList.
API CHANGE: Removed DataObjectSet::parseQueryLimit(), this is now implemented as PaginatedList::setPaginationFromQuery().
API CHANGE: Deprecated DataObjectSet::TotalItems in favour of Count().
ENHANCEMENT: Added FirstLink and LastLink to PaginatedList.
MINOR: Updated documentation, and added a how-to on paginating items.
