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OpenLayers 2.0 Release Notes
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 * Deprecated Methods which were removed: 
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 For details, see r1228
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 * OpenLayers.Map
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   * removed: getFullExtent() -- use  getMaxExtent() instead
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   * removed: zoomToFullExtent() -- use  zoomToMaxExtent() instead
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 * OpenLayers.Layer.Grid
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   * removed: setTileSize() -- user should instead pass a 'tileSize' property 
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              as one of the options when initializing the Grid Layer. ex: 
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        var url = "http://octo.metacarta.com/cgi-bin/mapserv";
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        var options = {tileSize: new OpenLayers.Size(500,50)};
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        var map = new OpenLayers.Map('map', options);
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        layer = new OpenLayers.Layer.WMS(name, url, params);
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 * OpenLayers.Layer.HTTPRequest
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   * removed: changeParams() -- use mergeNewParams() instead
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 * OpenLayers.Pixel
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   * removed: copyOf() -- use  clone() instead
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 * OpenLayers.Size
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   * removed: copyOf() -- use  clone() instead
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 * OpenLayers.LonLat
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   * removed: copyOf() -- use  clone() instead
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 * OpenLayers.Bounds
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   * removed: copyOf() -- use  clone() instead
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 * Array
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   * removed: copyOf() -- use  clone() instead
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 * MouseWheel
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  * It is now possible to zoom in/out with the mouse wheel instead of clicks.
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 * Spiral Gridding
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  * Instead of loading from the top to bottom of the map, Openlayers will 
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    now start loading tiles from the center of the map.
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 * Tile Re-Use
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  * In order to lower memory constraints and reduce element creation times, 
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    OpenLayers now creates a single set of images/tiles and reuses them as 
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    you scroll around the map.
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 * New Layer Support
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  * Google 
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  * Virtual Earth
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  * GeoRSS (RSS 1.0 and 2.0 in FF, IE, RSS 2.0 in Safari)
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  * KaMap
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  * Untiled WMS
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 * Scale Based Methods 
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  * It is now possible to set zooms based on the concept of scale. See 
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    documentation in the options for the Map constructor.
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OpenLayers 1.0
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 Initial release.
(2-2/3)