8.2.9

This release fixes an issue with our minification pipeline, which incorrectly mangled export declarations.

• Don't mangle module exports #1077, thanks @marvinhagemeister
• [ts] Add missing ref and key attribute #1051, thanks @andrewiggins
• [ts] Add default parameter for Generic argument of VNode #1082, thanks @andrewiggins
• [ts] Remove devtools module declaraction #1083, thanks @andrewiggins