Apple has just released new public betas for its various software platforms, including macOS Sequoia 15.4, iPadOS 18.4, tvOS 18.4, and more. Here are the new features to expect.Installing Apples new public beta releasesTo install the new software, you have to first be enrolled in Apples beta software program. Its free to sign up at beta.apple.com.If youve previously run public beta software, you should see todays updates inside the Software Update section of your devices Settings app.Be mindful that since these are beta 1 updates for brand new software versions, you may encounter a fair share of bugs and performance issues on your devices.Whats new in macOS 15.4, iPadOS 18.4, and moreTheres a lot packed into these first beta updates, including several features that exist across multiple platforms while some are device-exclusive.Mail redesign: Apple Mail recently got a big redesign with inbox categorization on iPhone. Now, those same changes are available on the Mac and iPad in macOS 15.4 and iPadOS 18.4.Proximity Pairing for Mac: With iOS 18.4 and macOS 15.4, youll be able to start using your iPhone to more quickly set up a new Macsimilar to the feature that already exists for iPhone and iPad.Ambient Music on iPad: iPadOS 18.4 gains some great new controls for Control Center. There are four Ambient Music controls that can trigger playlists optimized for certain moods: Chill, Productivity, Sleep, and Wellbeing. You can choose from preset playlists or use your own.Food section in Apple News: Also only on iPad (and iPhone), theres a new food section available to Apple News+ subscribers in the News app. It offers tens of thousands of recipes you can cook with, guided by an elegant new in-app recipe flow.Priority Notifications with AI: Similar to the feature in Apple Mail for messages, your notifications can now be automatically sorted into more important and not so important. The alerts that Apple Intelligence deems most important will get surfaced at the top of your notification stack.There are a variety of other changes in todays updates too:Apple Intelligence is now supported in the EU for iPad usersiPadOS lets you pick a default Translation app, and in the EU Navigation is also a new default categoryImage Playground adds a new Sketch style for creating original imagesApple Podcasts gets two new widget types for your Library and ShowsApple Intelligence now supports many more new languagesThere are also a variety of other smaller UI changes and improvementsHave you installed the new macOS 15.4 beta or another public beta? Hows it running for you? Let us know in the comments.Add 9to5Mac to your Google News feed. FTC: We use income earning auto affiliate links. More.Youre reading 9to5Mac experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Dont know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel