Minor: headerClass (column definition) can now be provided for column groups.
Major: If using Pure JavaScript "new ag.grid.Grid()", it's now "new agGrid.Grid()".
Major: Event 'ready' is now called 'gridReady'
Major: Angular 1 - you now need to initialise the grid via agGrid.initialiseAgGridWithAngular1(angular)
Major: Web Components - you now need to initialise the grid via agGrid.initialiseAgGridWithWebComponents()
Major: Angular 2 - Dropped support for UMD version of Angular
Major: Angular 2 - Now supports CommonJS and ECMA 6 module loading
Minor: BugFix: forPrint was not sizing headers correctly when doing grouped columns.
Major: Added sorting to groups
Minor: Added minColWidth and maxColWidth grid properties. Impacts all columns if set.
Major: Column no longer has 'index' attribute, as the columns moving now has no meaning. Use 'colId' to identify columns.
Major: api.ensureColIndexVisible(index) replace with api.ensureColumnVisible(colKey)
Major: Focused cell not longer has attribute colIndex, instead has attribute colId.
Major: Movable columns via dragging the column header.
Major Build Changes:
CSS now bundled in ag-Grid.js file
Took out TypeScript internal modules
Moved to ECMA 6 style imports (instead of require)
Moved to WebPack for bundling
Moved Angular 2 component to new project