iOS 4 Logo
1. What is iOS 4?
iOS is the same mobile operating system powered by the iPhone OS series but the name change. Apple understood that naming the none-phone type devices with a phone operating system isn't a good idea and Apple changed the name iPhone OS to iOS which benchmark and standardize the OS for mobile devices.2. Features of iOS 4
iOS 4 was released after iPhone OS 3 by Apple. IOS 4 was developed to cater to the wide range of Apple mobile devices and which gained more sales in the world than Apple Inc.2.1 Features of iOS 4.0
The first release of the iOS 4 was marked under the version code of 4.0 and the building code of 8A293 and the baseband codes of 05.13.04, 01.59.00. The initial release was made available to the public on 21st June 2010 and the release was initially targeted on the iPhone 4 device which came to the market in 2010.- Capability to perform multitasking effectively with double-clicking on the Home button.
- Capability to lock orientation when in portrait mode.
- Capability to access control widget in iPod.
- Capability to experience Apple FaceTime detects the capability of making direct video calls over WiFi in iPhone 4 and iPod Touch 4th generation devices.
- Capability to experience iBooks sync support through iTunes for iPhone and iPod Touch 4th generation devices.
- Capability to experience iAd mobile advertising network.
- Capability to set or grant permission for specific apps to get the location in settings.
- Capability to choose cellular data via a toggle switch in settings.
- Capability to choose password complexity via settings to alphabet characters and numbers.
- Capability to choose simple passcode lock with 4 digit number via settings.
- Capability to experience new wallpapers.
- Capability to experience wallpaper for the home screen.
- Capability to set up internet tethering.
- Capability to experience new Gmail and Exchange icons in Mail, Contacts, Calendars account settings.
- Capability to support multiple exchange accounts.
- Capability to create custom dictionary.
- Capability to experience Airplane Mode in iPod Touch 4th generation devices.
- Capability to experience separated sounds settings from general settings.
- Capability to categorize apps into folders the way the user wants to and name the folders up to 13 characters.
- Capability to experience 2,160 visible apps instead of 180 apps.
- Capability to experience redesigned Dock for iPad.
- Capability to rate on deleting apps.
- Capability to view the default folder with apps including Clock, Calculator, Voice Memos, and Compass app under a folder named "Default Utilities".
- Capability to experience revised springboard scrolling.
- Capability to access 5x or 5 times digital zoom feature in Camera App.
- Capability to focus on Camera App by touching on the display while recording.
- Capability to categorize photos by albums, faces, events, and places.
- Capability to support landscape mode to view Photos App.
- Capability to record videos in landscape mode.
- Capability to gift apps to another iPhone user via App Store.
- Capability to access unified "locate me" icon.
- Capability to experience the location icon when using Maps or location services in the Status bar.
- Capability to create a playlist on iPod Touch 4th generation devices.
- Capability to experience nested playlists.
- Capability to experience lyrics and podcasts information on settings.
- Capability to control the volume of the iPod Touch 4th generation with Bluetooth headsets.
- Capability to view album art in Album view.
- Capability to sync Notes with MobileMe, Gmail IMAP, and Yahoo!Mail.
- Capability to experience accounts management appearing if syncing is enabled.
- Capability to move the search box of the Notes into the title bar.
- Capability to experience birthday calendar in the Calendar App.
- Capability to make CalDAV invitations in the Calendar App.
- Capability to edit calendar an event after it gets saved in Calendar App.
- Capability to select any combination of calendar categories to view in the Calendar App.
- Capability to experience unified info by linking contacts from different accounts.
- Capability to access CardDAV in contacts.
- Capability to experience streamlined "New Contact" screen in Contacts App.
- Capability to search with web or Wikipedia in the spotlight.
- Capability to search messages in the spotlight.
- Capability to experience Bing as a search option along with Google and Yahoo! in Safari WebKit version 532.9.
- Capability to view recent searches below the search field in Safari browser with WebKit version 532.9.
- Capability to top hit in search in the Safari browser.
- Capability to view suggestions when searching a keyword in all three search engines.
- Capability to experience a unified search keyboard button when the search field is used in Safari.
- Capability to experience in-page audio playback.
- Capability to ask what the current time is via voice controls.
- Capability to rotate and zoom videos in a vertical orientation and horizontal orientation on YouTube.
- Capability to experience 480p video playback with smoother and quicker in YouTube.
- Capability to experience accessibility features including larger fonts in Contacts, Mail, Messages, and Notes.
- Capability to search in Messages App.
- Capability to enable or disable the character counter in Messages App.
- Capability to view failed SMS via a notification.
- Capability to choose the option to toggle off the ability to send group messages in the Messages App.
- Capability to experience unified inboxes in the Mail App.
- Capability to edit from outbox in Mail App.
- Capability to support multiple exchange accounts in the Mail App.
- Capability to file and delete Mail search results in the Mail App.
- Capability to quick look attachments in the Mail App.
- Capability to open attachments by registered file-type with corresponding apps from the App Store in Mail App.
- Capability to make smart links for dates and addresses in the Mail App.
- Capability to view contact pictures in emails in the Mail App.
- Capability to create calendar events from dates within emails in Mail App.
- Capability to access spell check.
- Capability to access Cangje and Wubihua keyboards for simplified and traditional Chinese language.
- Capability to text replacement between simplified and traditional Chinese.
- Capability to switch between keyboards with shortcuts.
- Capability to experience the support of Danish voice control.
- Capability to access new languages including Catalan, Hungarian, and Vietnamese.
- Capability to support Apple Bluetooth keyboards.
- Capability to persistent WiFi.
- Capability to experience the support addition on the iBooks App.
- Capability to wake on wireless.
- Capability to auto-join and auto-login and IPv6 on individual WiFi network settings.
- Capability to experience enhanced data protection.
- Capability to experience wireless app distribution.
- Capability to access mobile device management.
- Capability to experience SSL VPN support.
- Capability to experience supporting Microsoft exchange server 2010.
- Capability to experience improved Bluetooth driver for A2DP devices.
- Capability to experience improved iOS animations.
- Capability to experience enhanced security measures to the iOS 4 (https://support.apple.com/en-asia/HT4225).
2.2 Features of iOS 4.0.1
The first update release for the iOS version 4 was made on 15th July 2010 under the version code of 4.0.1 and build code of 8A306 and two baseband codes which were 05.13.04, 01.59.00. The update release was only to cater to iPhone devices.- Capability to experience increase in the length of the smaller signal bars.
- Capability to experience change in the calculating signal strength.
- Capability to experience fixed exchange ActiveSync issues.
- Capability to experience the capability to use only the official SIM card number to use FaceTime identification.
2.3 Features of iOS 4.0.2
The 2nd update release for iOS 4 was released under the version code of 4.0.2 and the building code of 8A400 and 05.13.04, 01.29.00. The release was available to the public on 11th August 2010.- Capability to experience patches a PDF exploit which allowed jailbreaking through Safari.
- Capability to experience enhanced security updates to the iOS 4 (https://support.apple.com/en-asia/HT202092).
2.4 Features of iOS 4.1
Apple made the 3rd update release for the iOS 4 which was released under the version code of 4.1 and the building code of 8B117 and the baseband code of 05.14.02, 02.10.04. The release only available for iPod Touch 4th generation devices and as well as iPhones only. The initial release was made to iPod Touch.- Capability to experience improved calendar colors.
- Capability to experience bug fixes made to the iPhone 4 proximity sensor issue which had earlier.
- Capability to experience bug fixes to Bluetooth connectivity.
- Capability to experience enhanced performance on iPhone 3G.
- Capability to experience bug fixes for Nike+ iPod Retina Display for iPhone 4.
- Capability to experience bug fixes on white balancing issues in iPhone 4 under certain light conditions.
- Capability to experience bug fixes to iPhone 3G and iPhone 3GS users to use FaceTime when entering the facetime:// URLs in Safari.
- Capability to experience Game Center.
- Capability to experience security updates to accessibility, FaceTime, ImageIO, and WebKit.
- Capability to build FaceTime call connection via email connects and through favorites.
- Capability to statistics submission over WiFi for Nike+ iPod.
- Capability to experience High Dynamic Range also known as HDR Photo capturing.
- Capability to upload HD videos over WiFi on iPhone 4 and iPod Touch 4th generation devices.
- Capability to access iTunes Ping feature which also a social music network and discovery tool for selected countries.
- Capability to access TV shows in rental basis.
- Capability to move existing appointment from one calendar to another calendar.
- Capability to experience the disability of Notes Syncing in iPhone 3G due to performance issues that came up.
- Capability to experience the restoration of field test mode.
- Capability to experience enhanced security updates (https://support.apple.com/en-asia/HT202111) to iOS 4.
2.5 Features of iOS 4.2.1
The 4th update for the iOS 4 was released under the version code of iOS 4.2.1 and two build codes which are 8C148, 8C148a and three baseband codes 05.15.04, 03.10.01, 07.10.00. The version update was released on 22nd November 2010.iOS version 4.2.1 was the final version of iOS which supports iPhone 3G and iPod Touch 2nd generation devices.
- Capability to experience bug fixes into the birthday calendar which didn't show birthdays starting than 77 years ago.
- Capability to experience the bug fix in the glitch that can let a user get into the Phone App while the phone is locked via "Emergency Call" by dialing a random number and quickly pressing the lock button after dialing the call.
- Capability to experience the bug fix alarm bug caused daylight saving time changing, affected on a part of iPhone and iPod Touch owners living in various countries and time zones.
- Capability to experience the improved performance of iPhone 3G and iPod Touch 2nd generation devices.
- Capability to experience AirPlay which replaced AirTunes.
- Capability to access AirPrint on selected models that enable wireless printing with a print center.
- Capability to import .ics calendar files directly for events.
- Capability to experience improved battery performance.
- Capability to experience changes done to the birthdays' icon in the Calendar App.
- Capability to experience the updated carrier settings.
- Capability to search text on web pages.
- Capability to access new two fonts in the Notes app which are Helvetica and Chalkboard and could have the capability to choose via settings.
- Capability to experience Safari 6533.18.5 and WebKit 533.17.9.
- Capability to support Chinese URLs over the Safari browser.
- Capability to check the capability of app support for Game Center in the App store.
- Capability to experience CoreMIDI.
- Capability to vote in YouTube videos.
- Capability to experience minor improvements in UI graphics.
- Capability to experience new parental controls for deleting apps, changing mail accounts, and location services in the device.
- Capability to change the font sizes of the text in the Calendar app in Accessibility settings.
- Capability to experience security fixes in the iOS (https://support.apple.com/en-asia/HT202154).
- Capability to experience network-controlled fast dormancy implemented in the baseband to improve battery life and reduce network congestion.
- Capability to experience bug fixes intermittent WiFi issues in iOS 4.2 beta 3.
- Capability to experience bug fixes VoIP issues.
- Capability to support iPad.
- Capability to gain multitasking features in iOS 4 on the iPad.
- Capability to access 4,400 App icons in iPad instead of 220 icons.
- Capability to experience an increase in the length of the smaller signal bars which displays the signal strength of carrier signals in iPad.
- Capability to experience the changed method in iPad to calculate the signal strength.
- Capability to access additional multitasking tray which includes brightness, volume control, AirPlay controls, and screen rotation lockable switch.
- Capability to experience the physical iPad screen rotation lock switch is converted into a sound/silent switch in iOS 4.2 with a virtual screen rotation lock switch added to the multitasking tray.
- Capability to access more than 30 new keyboards and dictionaries including Arabic, Greek, and Hebrew.
- Capability to experience multitasking animation.
- Capability to experience new bookmarks design in iPhone and iPod Touch devices.
- Capability to access new voice memos icon.
- Capability to access FaceTime shortcut from Messages app on iPhone 4.
- Capability to experience new text tone alerts in iPhone 4.
- Capability to experience ringer and alerts on/off switch via settings for volume buttons on the iPhone.
- Capability to set different text tone alerts to each contact.
- Capability to restore full field test mode.
2.6 Features of iOS 4.2.5
The 5th update release to iOS 4 was released under the version code of 4.2.5 and the building code of 8E128 and baseband code of 1.0.05. The release was able to access on 11th January 2011 and the release was focused on the CDMA iPhone 4 with the Verizon for demo purposes.- Capability to access the Personal Hotspot feature on the iPhone.
2.7 Features of iOS 4.2.6
The 6th update release to iOS 4 was released under the version code of 4.2.6 and the building code of 8E200 and the baseband code of 1.0.05. Version 4.2.6 was focused on CDMA iPhone 4 for Verizon and got released on 31st January 2011.- Capability to experience bug fixes to personal hotspot feature released under prior version code 4.2.5.
2.8 Features of iOS 4.2.7
The 7th update release to iOS 4 was released under the version code of 4.2.7 and the building code of 8E303 and the baseband code of 1.0.06. The release was primarily focused on CDMA iPhone 4 for Verizon devices only and the version got released on 14th April 2011.- Capability to experience security updates to the iOS (https://support.apple.com/en-asia/HT202207).
- Capability to experience baseband update with enhanced security.
2.9 Features of iOS 4.2.8
The 8th update release to iOS 4 was released under the version code of 4.2.8 and the building code of 8E401 and the baseband code of 1.0.06. The release was primarily focused on CDMA iPhone 4 for Verizon devices only and the version got released on 4th May 2011.- Capability to experience the reduced size of the iOS crowd-sourced location database cache.
- Capability to experience no-cache backups in iTunes.
- Capability to experience the deletion of location services data when turned off.
2.10 Features of iOS 4.2.9
The 9th update release to iOS 4 was released under the version code of 4.2.9 and the building code of 8E501 and the baseband code of 1.0.06. The release was primarily focused on CDMA iPhone 4 for Verizon devices only and the version got released on 15th July 2011.- Capability to experience disabled the possibility of viewing a maliciously crafted PDF file that may lead to an unexpected application termination or arbitrary code execution.
- Capability to experience Disabled malicious code running as the user from gaining system privileges.
- Capability experience updated security features in iOS (https://support.apple.com/en-asia/HT202284).
2.11 Features of iOS 4.2.10
The 10th update release to iOS 4 was released under the version code of 4.2.10 and the building code of 8E600 and the baseband code of 1.0.06. The release was primarily focused on CDMA iPhone 4 for Verizon devices only and the version got released on 25th July 2011.- Capability to experience bug fixes to security vulnerability with certificate validation.
- Capability to experience enhanced security in iOS (https://support.apple.com/en-asia/HT202288).
2.12 Features of iOS 4.3
The 11th major update release to iOS 4 was released under the version code of 4.3 and under two build codes which were 8F190, 8F191, and four baseband codes which were 05.16.01, 04.10.01, 07.11.00, 2.0.4. The release majorly focused on Apple iPad 2 and got released on 9th March 2011.- Capability to experience implementation of ASLR for increased security.
- Capability to experience supporting AirPlay video for third-party apps.
- Capability to view HTTP live streaming statistics.
- Capability to access the new font in Notes app which named "Noteworthy".
- Capability to experience improved performance in Safari with the Nitro Javascript engine.
- Capability to experience the redesigned account section under the store menu.
- Capability to choose and switch on automatic downloads for iTunes Music and App Store apps.
- Capability to experience the shift of location services from general to the settings menu.
- Capability to experience new parental controls for use with Ping.
- Capability to experience a new menu for scrubbing in videos with gestures.
- Capability to cancel and delete apps that downloading at the moment in the device.
- Capability to stream from an iTunes library to iOS using Home Sharing.
- Capability to do in-app purchases and always ask for a password even the user has entered the password for more verification.
- Capability to experience the internal system clock gets network time updated more often via NITZ which gives more accurate time for the device.
- Capability to experience personal hotspot feature with up to 5 simultaneous devices connections.
- Capability to set amount of times a text tone repeats up to 10 times in the device.
- Capability to experience the removal of field test mode refresh button and updated information has been displayed at the bottom of the screen.
- Capability to experience moving of slideshow options to the Photos App.
- Capability to experience new lock for taking a picture for a contact.
- Capability to experience vibration 2 times when receiving a text message on the iPhone.
- Capability to experience getting shortened SMS tones in iPod Touch devices.
- Capability to experience new FaceTime icon in iPod Touch 4th generation devices.
- Capability to experience voice control in FaceTime in iPod Touch 4th generation devices.
- Capability to experience new look for taking a picture for a contact in iPod Touch 4th generation devices.
- Capability to experience the disability of SMS App access through SMS:num links in iPad 2 devices.
- Capability to choose the function of iPad's physical switch between rotation lock or mute.
- Capability to experience fullscreen iAd banner format.
- Capability to experience bug fixes to the Photo Booth and FaceTime app in iPad 2 devices.
- Capability to experience the bug fixes which prevented controls from being dismissed in some cases.
- Capability to experience the addressing of issues where the keyboard could not be brought back when highlighting and swiping through search results.
- Capability to experience VoiceOver now reads the entire chart in the Stocks app while in landscape mode.
- Capability to experience bug fixes which caused slideshow stopping after 15 images when using AirPlay.
- Capability to experience baseband updates on iPhone 3GS and iPhone 4.
- Capability to experience updates for the carrier settings for the USA and UK and Portugal.
- Capability to experience the enabling of traffic volume indicator IE in cell update for iPhone and iPad WiFi + 3G devices.
- Capability to experience bug fixes on canceled recurring calendar events still showing on the event list.
- Capability to experience bug fixes to the deleting a recurring event make the alarm go away.
- Capability to experience the bug fixes which caused all day alarm fired an hour early.
- Capability to experience bug fixes to missing accented letters in European keyboard popups.
- Capability to experience the increase of font size for China and Pinyin inputs.
- Capability to experience the bug fixes into the auto-correction issue when switching back from Emoji to the English keyboard.
- Capability to experience bug fixes to the orientation of mail application not following device orientation under specific conditions.
- Capability to experience bug fixes to mail message view and orientation when quickly selecting a message and hitting edit mode.
- Capability to experience bug fixes to MMS messages with vCards scrolling up.
- Capability to experience the Address Space Layout Randomization also known as ASLR.
- Capability to experience a new icon for WiFi tethering for a personal hotspot on the status bar.
- Capability to experience the bug fixes caused Safari and other apps to crash after loading certain heavy websites.
- Capability to experience bug fixes to the personal hotspot password failure with 22+ characters.
- Capability to experience added support for find in the Safari browser.
- Capability to experience bug fixes to wallpaper title for VoiceOver.
- Capability to experience security enhancements done to the iOS (https://support.apple.com/en-asia/HT202187).
2.13 Features of iOS 4.3.1
The 12th update to the iOS 4 was released under the version code of 4.3.1 and build code as 8G4 and four baseband codes which are 05.16.02, 04.10.01, 07.11.01, 2.0.4. The release update carried bug fixes to the iOS 4 and version 4.3.1 was released on the 25th of March 2011.- Capability to experience bug fixes to graphics glitches on iPod Touch 4th generation.
- Capability to experience baseband updates for the iPhone 3GS and iPad 1st generation devices.
- Capability to experience bug fixes to memory hand that results in memory corruption when reading large files from USIM file system.
- Capability to experience bug fixes to the problem with NTLM authentication in apps and on websites.
- Capability to experience bug fixes to issue with the springboard and 3rd party apps not recognizing the gyroscope on iPad 2.
- Capability to experience resolving bugs related to activating and connecting to some cellular networks.
- Capability to experience bug fixes to the image flicker when using Apple Digital AV Adapter with some TVs.
- Capability to experience resolving issues authenticating with some enterprise web services.
- Capability to experience changes in the behavior of the battery percentage.
2.14 Features of iOS 4.3.2
The 13th update to the iOS 4 was released under the version code of 4.3.2 and the build codes of 8H7, 8H8, and under four baseband codes which were 05.16.02, 04.10.01, 07.11.01, 2.0.4. The release carried bug fixes to the iOS 4 and the version 4.3.2 was released on 14th April 2011.- Capability to experience bug fixes to the issue with blank or frozen video during a FaceTime call.
- Capability to experience bug fixes to the issue with connectivity to 3G networks on iPad WiFi + 3G.
- Capability to experience bug fixes to the issue where exchange redirection does not occur when ActiveSync server is on an exchange 2010 server and user mailbox is on exchange 2007.
- Capability to experience enhanced security updates to iOS (https://support.apple.com/en-asia/HT202208).
2.15 Features of iOS 4.3.3
The 14th update to the iOS 4 was released under the version code of 4.3.3 and the build codes of 8J2, 8J3, and four baseband codes which are 05.16.02, 04.10.01, 07.11.01, 2.0.4. The release update carried bug fixes to the iOS 4 and was available for the users on the 4th of May 2011.- Capability to experience the reduced size of the iOS crowd-sourced location database cache.
- Capability to experience no longer backs the cache up to iTunes.
- Capability to experience deletion of cache entirely when location services are turned off.
- Capability to experience no longer allowing users to remove apps that have not been completely downloaded to the device.
2.16 Features of iOS 4.3.4
The 15th update to the iOS 4 was released under the version code of 4.3.4 and the building code of 8K2 and under four baseband codes which are 05.16.02, 04.10.01, 07.11.01, 2.0.4. The release carried disabling of few features and got released on 15th July 2011.- Capability to experience the re-introduction to cancel and delete apps that are currently downloading.
- Capability to experience patches made to avoid jailbreaking.
- Capability to experience the disability to the possibility of viewing a maliciously crafted PDF file that may lead to an unexpected application termination or arbitrary code execution.
- Capability to experience disability of malicious code running as the user may gain system privileges in the device.
- Capability to experience disability of incomplete signing attacks and blocking of untethered jailbreak.
- Capability to experience enhanced security features to the iOS 4 (https://support.apple.com/en-asia/HT202272).
2.17 Features of iOS 4.3.5
The 16th update to the iOS 4 was released under the version code of 4.3.5 and the building code of 8L1 and under two baseband codes which were 04.10.01, 2.0.4. This update was the last update to the iOS 4 and got released on 25th July 2011.- Capability to experience bug fixes to security vulnerability with certificate validation (http://support.apple.com/kb/HT4824).
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