WhatsApp for iPhone got updated Thursday with three noteworthy improvements. For starters, it now honors your preferred font size set in Settings > General > Accessibility > Larger Text so all text labels throughout the app get rendered in your chosen typeface size.
There's also a new call button in chats. Lastly, a built-in image chooser has been redesigned so you can now quickly add recent images from your Camera Roll right after tapping on the camera icon in chats.