* Added **Canvas backend** for vector layers (polylines, polygons, circles). This enables vector support on Android <3,anditcanalsobeoptionallypreferredoverSVGforaperformancegaininsomecases.Thanksto [@florianf](https://github.com/florianf) forabigpartofthiswork.
* Limited maximum zoom change on a single mouse wheel movement (so you won't zoom across the whole zoom range in one scroll). [#149](https://github.com/CloudMade/Leaflet/issues/149)
* Improved `LatLng` constructor to be more tolerant (and throw descriptive error if latitude or longitude can't be interpreted as a number). [#136](https://github.com/CloudMade/Leaflet/issues/136)
* Added `Polyline``closestLayerPoint` method that's can be useful for interaction features (by [@anru](https://github.com/anru)). [#186](https://github.com/CloudMade/Leaflet/pull/186)
* Improved browser-specific code to rely more on feature detection rather than user agent string.
* Improved superclass access mechanism to work with inheritance chains of 3 or more classes; now you should use `Klass.superclass` instead of `this.superclass` (by [@anru](https://github.com/anru)). [#179](https://github.com/CloudMade/Leaflet/pull/179)
* Added `minWidth` option to `Popup` (by [@marphi](https://github.com/marphi)). [#214](https://github.com/CloudMade/Leaflet/pull/214)
* Fixed a bug where mouse zoom worked incorrectly if map is inside scrolled container (partially by [@chrillo](https://github.com/chrillo)). [#206](https://github.com/CloudMade/Leaflet/issues/206)
* Fixed a bug where `Marker``setIcon` was not working properly (by [@marphi](https://github.com/marphi)). [#218](https://github.com/CloudMade/Leaflet/pull/218)
* Fixed a bug that caused en error when dragging marker with icon without shadow (by [@anru](https://github.com/anru)). [#178](https://github.com/CloudMade/Leaflet/issues/178)
* Fixed a bug where drag event fired before the actual movement of layer (by [@anru](https://github.com/anru)). [#197](https://github.com/CloudMade/Leaflet/pull/197)
* Fixed occasional crashes on Mac Safari (thanks to [@lapinos03](https://github.com/lapinos03)). [#191](https://github.com/CloudMade/Leaflet/issues/191)
* Fixed a bug that caused map overlays to appear blurry in some cases under WebKit browsers.
#### Mobile browser bugfixes
* Fixed crash on Android 3+ when panning or zooming (by [@florian](https://github.com/florianf)). [#137](https://github.com/CloudMade/Leaflet/issues/137)
* Added different **projections** support, having `EPSG:3857`, `EPSG:4326` and `EPSG:3395` out of the box (through `crs` option in `Map`). Thanks to [@Miroff](https://github.com/Miroff) & [@Komzpa](https://github.com/Komzpa) for great advice and explanation regarding this.
* Improved panning performance in Chrome and FF considerably with the help of `requestAnimationFrame`. [#130](https://github.com/CloudMade/Leaflet/issues/130)
* Fixed a bug where zooming is broken if the map contains a polygon and you zoom to an area where it's not visible. [#47](https://github.com/CloudMade/Leaflet/issues/47)
* Fixed a bug where marker that was added, removed and then added again would not appear on the map. [#66](https://github.com/CloudMade/Leaflet/issues/66)
* Disabled zoom animation on Android by default because it's buggy on some devices (will be enabled back when it's stable enough). [#32](https://github.com/CloudMade/Leaflet/issues/32)
* Fixed a bug where map would occasionally break while multi-touch-zooming on iOS. [#32](https://github.com/CloudMade/Leaflet/issues/32)
* Fixed potentional memory leak on WebKit when removing tiles, thanks to [@Scalar4eg](https://github.com/Scalar4eg). [#107](https://github.com/CloudMade/Leaflet/issues/107)