Version 2.1.0

This release of Chart.js adds horizontal bars (big thanks to @potatopeelings) and the ability to create plugins that fit into the lifecycle of a chart.

New Features

• Horizontal Bars!! Thanks to @potatopeelings
• You can now share data between charts. Thanks to @simonbrunel! Note that this will require changes if dataset.metadata or dataset.metaDataset were being used. There is now a helper function to retrieve the correct meta data for a given dataset
• Doughnut and Pie charts no longer need to fill the entire circle. Thanks @mdehoog
• Plugins! You can now create plugins that fit into the chart lifecycle. See docs

Fixed Issues

• Fixed axis sizing when grid lines were not displayed. Added configurable tick length. #2229
• Fixed an issue in the doughnut / polar area legend callbacks when no background color was set #2143
• Typo in line chart docs #2289 Thanks @tKammy
• Fix error in tooltip interface docs #2300 Thanks to @HuwSy
• Fix doughnut html legend span placement #2308 Thanks to @pwavg
• Fix typo in plugin destroy call. #2318 Thanks @Janpot
• Improved logic for calculating bar width. #2326 Thanks to @johnw86
• Ensured that built file has header comment at very top. #2329 Thanks to @zachpanz88
• Fix typo in Contributing.md #2332 Thanks to @sashamjolnir
• Fix label mode tooltips in radar charts #2023
• Make docs clearer for nested properties. #2338 Thanks to @daandemeyer
• Fix the time scale when the first value is null #2176
• Fix legend sizing #2152
• Added documentation on what can be passed as colors to Chart.js
• Added documentation on which properties can be added to each dataset
• Fix an issue in the time scale where the last point was sometimes cutoff #2277
• Only use visible datasets for the time scale limit determination. #2394 Thanks @Lighnat0r
• Fix an issue in the docs where the pie chart had sensitive click areas #2389 Thanks to @dougmolineux
• Pie chart sample now randomizes colors as well. #2421 Thanks to @mchateloin

Config Changes

The old options will still work in this release.

• Renamed dataset tension property to lineTension. #2314 Thanks to @jachstet-sea
• Renamed dataset radius property to pointRadius #2314 Thanks to @jachstet-sea
• Chart.defaults.Line renamed to Chart.defaults.line #2340 Thanks to @daandemeyer
• Chart.defaults.Bar renamed to Chart.defaults.bar #2340 Thanks to @daandemeyer