_22 May 2019_ ([Full changelog](https://github.com/finos/perspective/compare/v0.3.0-rc.1...v0.3.0-rc.2))
Features
- Fixed tooltip value when split_values and multiple main values [583](https://github.com/finos/perspective/pull/583)
- add restyle to type definitions, fix dark mode in jlab, fix CSS issue [578](https://github.com/finos/perspective/pull/578)
- Feature/dual y axis POC [564](https://github.com/finos/perspective/pull/564)
- JupyterLab enhancements [570](https://github.com/finos/perspective/pull/570)
- D3 Treemaps [563](https://github.com/finos/perspective/pull/563)
Misc
- New benchmark suite [588](https://github.com/finos/perspective/pull/588)
- Port to Webpack 4 [587](https://github.com/finos/perspective/pull/587)
- Update CONTRIBUTING.md [584](https://github.com/finos/perspective/pull/584)
- Row delta supports addition, delete, non-contiguous updates [582](https://github.com/finos/perspective/pull/582)
- Undo condensed column layout when width < 600px [580](https://github.com/finos/perspective/pull/580)
- Fixed grid styling [576](https://github.com/finos/perspective/pull/576)
- UX fixes [575](https://github.com/finos/perspective/pull/575)
- Performance overhaul for `table.update()` [574](https://github.com/finos/perspective/pull/574)
- Feature/treemap enhancements [572](https://github.com/finos/perspective/pull/572)
- Fix the format of long numbers [573](https://github.com/finos/perspective/pull/573)
- Refactor Javascript API +add documentation [571](https://github.com/finos/perspective/pull/571)
- Update results.json to reflect Scatter name change [190](https://github.com/finos/perspective/pull/190)
- Overwrite test results [189](https://github.com/finos/perspective/pull/189)
- Update results.json to reflect Scatter name change [188](https://github.com/finos/perspective/pull/188)
- Correctly read and generate boolean values for Arrow format [561](https://github.com/finos/perspective/pull/561)
- Rename charts [187](https://github.com/finos/perspective/pull/187)
- correct testData file reference [186](https://github.com/finos/perspective/pull/186)
- provide framework for centering tooltips, and apply to treemap [182](https://github.com/finos/perspective/pull/182)
- use the native d3 treemap functionality to calculate the new coordina… [183](https://github.com/finos/perspective/pull/183)
- finos migration [184](https://github.com/finos/perspective/pull/184)
- titling mechanism for gridLayout charts made generic and shared. [180](https://github.com/finos/perspective/pull/180)
- Fixed docs links [559](https://github.com/finos/perspective/pull/559)
- Feature/treemap resizing [179](https://github.com/finos/perspective/pull/179)
- Test/more unit tests [181](https://github.com/finos/perspective/pull/181)
- Feature/treemap chart [168](https://github.com/finos/perspective/pull/168)
- Store legend position and size in settings [176](https://github.com/finos/perspective/pull/176)
- Fix tooltip for sunburst with no color [177](https://github.com/finos/perspective/pull/177)
- Treat negative sunburst size values as zero [178](https://github.com/finos/perspective/pull/178)
- Made date zoom button names consistent [175](https://github.com/finos/perspective/pull/175)
- Minor refactor to settings configuration [174](https://github.com/finos/perspective/pull/174)
- Allow settings to be restored before draw [173](https://github.com/finos/perspective/pull/173)
- Initial implemenetation of save and restore [170](https://github.com/finos/perspective/pull/170)
- Zoom y-axis to data on OHLC/Candlestick charts [171](https://github.com/finos/perspective/pull/171)
- Added fixed zoom ranges for date x axis [169](https://github.com/finos/perspective/pull/169)
- Support dates on the y-axis for heatmaps [165](https://github.com/finos/perspective/pull/165)
- Simplify plugin interface code [167](https://github.com/finos/perspective/pull/167)