Changes

• Gradient slide backgrounds, read the docs 🌈 (@gcmznt in #2510)
• If multiple separate notes are provided for the same slide they will now all show in the speaker view (@lechten in #3010)
• Updated browser targets from > 0.5%, IE 11, not dead to > 2%, not dead
• Stop using zoom for presentation scaling. Zoom produced sharper upsizing than CSS transforms but it's a non-standard CSS property with a few too many quirks. e281b3234e7991283ce4dcca705dd9a6a9ebe5d2

Fixes

• Fix issue where speaker view wasn't syncing (@hakimel #3285)
• Fix incorrect slide numbers when exporting vertical slides to PDF (@chivongv in 3182)
• Fix inconsistent fragment visibility in looped presentations (@hakimel in #3123)
• Fix bug where r-fit-text caused text to truncate in PDF exports (@hakimel in #3120)
• Fix bug where auto-animate could interfere with inherited line-height (@hakimel)

Full Changelog: https://github.com/hakimel/reveal.js/compare/4.3.1...4.4.0