v3.9.3
• Migrated to new Dropbox authentication flow
• Fixed PDF rendering issues
v3.9.2
• Improved support for Android 11+
• Reduced app size by 4 MB by removing erroneously included font
• Fixed PDF text rendering issues for Chinese, Japanese, and Korean languages
• Miscellaneous bug fixes and improvements
Full changelog: http://goo.gl/EsAlNK