Features
* Chart is a now standalone widget, rather than an extension of a Toga Canvas. (22)
Bugfixes
* The requirements of `toga-chart` were modified so that toga-chart is only dependent on `toga-core`, rather than the `toga` meta-package. This makes it possible to install `toga-chart` on Android, as the meta-package no longer attempts to install the `toga-gtk` backend on Android; but it requires that end-users explicitly specify `toga` or an explicit backend in their own app requirements. (24)
Misc
* 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 58, 63