Apple Releases Second Beta of iOS 4.3 to Developers - MacRumors
Skip to Content

Apple Releases Second Beta of iOS 4.3 to Developers

155915 ios 4 3 beta 2

Apple today issued a second beta version of iOS 4.3 to registered developers, marking a quick turnaround since the initial beta version was seeded one week ago.

The new seed carries build number 8F5153d, up from the previous 8F5148b, and is similarly available in versions for the iPad, iPhone 4 and 3GS, and third- and fourth-generation iPod touch, as well as in a separate version for the new Apple TV.

There is no word yet on changes in the new build, but the first beta version added for support for a number of features including personal Wi-Fi hotspot functionality, new multi-touch gestures for the iPad, support for video streaming from third-party and web apps via AirPlay, and a new software option for selecting the functionality of the iPad's side switch.

Update: 9 to 5 Mac notes that Apple has clarified in the documentation accompanying the new build that the four- and five-finger iPad gestures added in the initial build will not be included in the public release of iOS 4.3 and are simply being included in developer versions so that Apple can obtain input from developers on their functionality.

This feature will not be enabled in iOS 4.3 for customers, but we are providing this preview to gather input on how these gestures work with your apps.

Related Forum: iPhone

Popular Stories

Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....
Everything New Your iPhone Can Do on iOS 27 Feature 1

50 New Things Your iPhone Can Do in iOS 27 - Out Now!

Monday September 14, 2026 10:48 pm PDT by
Apple released iOS 27 this week, and despite the company's focus this year on refining its flagship operating system and nixing bugs, there are still many additional features to explore, not least of which is Apple's new context-aware Siri, re-tooled for the generative AI era. Which iPhones Support Every iOS 27 Feature? This year's major iPhone software update isn't all about AI, though,...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...