Apple Inc. provides updates to the iOS operating system for the iPhone, iPad, and iPod Touch through iTunes, since iOS 5.0, and through over-the-air software updates. With the announcement of iOS 5.0, on June 6, 2011, a USB connection to iTunes was no longer needed to activate iOS devices; data synchronization can happen automatically and wirelessly through Apple's iCloud service. The most recent update, iOS 9.1, was released on October 21, 2015 (2015-10-21).
Apple's iOS did not have an official name until the release of the iPhone software development kit (iPhone SDK) on March 6, 2008. Before then, Apple marketing literature simply stated that their iPhone runs a version of OS X, a reference to iOS' parent operating system. When introduced, it was named iPhone OS. It was renamed iOS on June 7, 2010, as, with the introduction of the iPad as well as the existence of the iPod Touch, the iPhone was no longer the only device to run the mobile operating system. iOS 4 was the first major release to reflect this change. Apple licensed the "iOS" trademark from Cisco.
In June 2007, Apple released the first version of what became iOS – concurrently with the first iPhone. The final 1.x series release was 1.1.5, released shortly after version 2.0.
July 11, 2008 saw the public release of iPhone OS 2.0, with upgrades through version 2.2.1 made available.
June 17, 2009 was the release date for iPhone OS 3.0. It was updated through (and including) version 3.1.3 (release date February 2, 2010). The first generation iPod Touch and iPhone have iPhone OS 3.1.3 as their newest available version. All iOS versions from 3.2 until 4.0 were made specifically for the iPad.
On June 21, 2010, iOS 4.0 (formerly iPhone OS) was released to the public and was made available only to the iPod Touch and iPhone. iOS 4.0 was announced to have over 1500 new APIs for developers, with the highly anticipated multitasking feature. The iPod Touch (2nd generation) and iPhone 3G have iOS 4.2.1 as the final version available. Nevertheless, many features are not available for the iPhone 3G or iPod Touch (2nd generation), such as multitasking and home screen backgrounds. iOS 4.2 is the first version to bring major feature parity to the iPhone and iPad. The release of the CDMA iPhone for Verizon Wireless saw a branching of iOS. The 4.2 version sequence continued for the CDMA phone while 4.3 was released for all other products.
iOS 5 had only three minor additions, 5.0.1, 5.1, and 5.1.1, which were all provided as OTA and iTunes software updates.
Apple concurrently provides the same version of iOS for the comparable model of iPhone and iPod Touch, usually devices released in the same calendar year. iPhone users receive all software updates for free, while iPod Touch users paid for the 2.0 and 3.0 major software updates. As of iOS 4.0, Apple no longer charges money for iPod Touch updates.
As of October 23, 2011, two versions of iOS were never released. iPhone OS 1.2, which after the first beta was replaced by a 2.0 version number; the second beta was called 2.0 beta 2 instead of 1.2 beta 2. The other was iOS 4.2, replaced with 4.2.1 due to a Wi-Fi bug in 4.2 beta 3, causing Apple to release 2 golden masters (4.2 GM and 4.2.1 GM). One version of iOS was pulled back by Apple after being released. iOS 8.0.1 was pulled back by Apple because cellular service and Touch ID were disabled on iPhone 6 and iPhone 6 Plus.
First iteration of Apple's touch-centric mobile operating system. No official name given on its initial release; Apple marketing literature simply stating the iPhone runs a version of Apple's desktop operating system, OS X. On March 6, 2008, with the release of the iPhone software development kit (iPhone SDK), Apple named it iPhone OS (they went on to rename it "iOS" on June 7, 2010).
Table of versions: iPhone OS 1.x – iPhone and iPod Touch
Commonly called the iPhone "January '08 Update" and January Software Upgrade by Apple.
Free update for iPhone; $19.95 in iTunes for the iPod Touch.
Mail, Maps, Stocks, Weather and Notes apps for iPod Touch.
Recent calls contact details now show most recent call times.
Google Maps on iPhone gains the 'Locate Me' feature which can determine the phone's approximate location, using a combination of cellular triangulation and Wi-Fi data from Skyhook Wireless; also adds hybrid map support and the 'Drop Pin' feature.
Icons on the home screen can be rearranged and placed on multiple home screens (up to nine).
iTunes gift cards can be redeemed on the iTunes Store.
Movies downloaded through iTunes have chapter support.
Music has lyrics-support feature.
Web Clips can be added to (and subsequently removed from) the home screen.
SMS messages can be sent to multiple contacts using messages.
SMS storage capacity increased from 1,000 to 75,000 messages.
Default GmailIMAP setup for new accounts (previously was defaulted as POP3).
The clock timer now remembers the last used options (bug fix).
Incoming SMS messages now prompts the user to "Close" or "Reply" (previously "Ignore" or "Reply"). Pressing either option now marks the message as "seen".
Labels for contact data can now be deleted.
Applications on the phone no longer run as root; they run as the user "mobile" instead.
Ability to listen to music through a Bluetooth headset by going to the voicemail and choosing "Bluetooth" as the audio source no longer works (still works as long as phone is not locked or voicemail screen is active).
iPhone OS 2, the second major release of iOS, became available on July 11, 2008 with the release of the iPhone 3G. Devices running 1.x are upgradable to this version. This version of the OS introduces the App Store, making third-party applications available to the iPhone and iPod Touch. Prior to the public release of iPhone OS 2.0, Apple held a keynote event to announce the iPhone OS Software Development Kit ("SDK") to developers.
Table of versions: iPhone OS 2.x – iPhone and iPod Touch
Triple-click on the control button of headphones now jumps music to previous track played.
SMS app can alert up to two additional times if you don’t acknowledge an incoming text message (will play the alert sound/vibrate again after a period of time as if a new message just came in).
Update supporting languages.
Option to wipe data after ten failed passcode attempts (after 5 attempts, the device will disable itself for 1 minute. After the 6th attempt, it will disable itself for 5 minutes. In the 10th attempt, it will wipe all data).
iPhone OS 3.0 became available with the iPhone 3GS. It was released on June 17, 2009. This release added features such as copy and paste, and MMS. Not all features were available on the original iPhone. Devices running iPhone OS 2.x were upgradeable to this software. The final release supported on the original iPhone and iPod Touch is iPhone OS 3.1.3. The iPad was introduced with iOS 3.2.
Table of versions: iPhone OS 3.x – iPhone, iPad, and iPod Touch
Features iPhone users got in 2.2 now added for the iPod Touch (e.g. Google Street View, public transit and walking directions, display address of dropped pin, share location via email, and cache of recent locations). Changed behavior when routing directions and showing steps.
Landscape mode that enabled viewing detailed price and change information by dragging one or two fingers across the full-screen chart.
Metadata display for detailed information about the symbol, including full company/fund name, market capitalisation, price to earning ratio, dividend yield, and statistics about the day and year price range.
Table of news stories from various internet sources related to the selected symbol.
Can now log into account.
View subscriptions, Favorites, My Videos, History, and Playlists
Comment on videos, rate videos
Recent Calls now show more details (call length, etc.).
Ability to change/set "own number" (my number) in the SIM card. Will be displayed in the Contacts list and iTunes, as well as possibly used for MMS identification.
Holding the home button will no longer force quit an unresponsive application. To force quit an application in 3.0 hold the sleep/wake button until the red power off slider appears. Then hold down the home button to quit the unresponsive application.
Screen captures are no longer numbered separately from photos taken with the camera application; all new images in the camera roll now use a common numbering sequence.
On iPod Touch (2nd generation) the Voice Memos app now successfully records audio if you plug your microphone after you have started the application.
Numbers inside Notes have more options when tap and hold is triggered: Call, Text Message, Create New Contact, Add to Existing Contact.
Voice control over Bluetooth is now available, allowing users to initiate calls and control music playback via Bluetooth headsets (however, voice control while plugged into car audio systems no longer works).
iOS 4 was made available to the public for the iPhone and iPod Touch on June 21, 2010. This is the first major iOS release to drop support for some devices (original iPhone and iPod Touch) and that iPod Touch users do not have to pay for.
The iPhone 3G and iPod Touch (2nd generation) have limited features, including lack of multitasking capabilities and the ability to set a home screen wallpaper, while the iPhone 4, iPhone 3GS, iPod Touch (3rd & 4th generation) have all features enabled, such as multitasking. The iPhone and iPod Touch (1st generation) cannot run iOS 4.0 and above.
iOS 4.2.1, released November 22, 2010, added iPad compatibility. It was the initial release on the iPad 2. It also was the last version to support iPhone 3G and iPod Touch (2nd generation). iOS 4.2.1 replaced iOS 4.2 due to a Wi-Fi bug in iOS 4.2 beta 3, causing Apple to release 2 golden masters (4.2 GM and 4.2.1 GM).
Table of versions: iOS 4.x – iPhone, iPad, iPod touch
Ability to cancel and delete an app which is currently downloading. Before iOS 4.3, it was only possible to delete an app which had already downloaded.
Stream from an iTunes library to iOS using Home Sharing.
In-app purchases always ask for a password, even if one has previously been entered.
Internal system clock gets network time updated more frequently via NITZ (part of the official GSM standard since phase 2+ release 96) and gives a more accurate time for the device, it updates about every five days.
Personal Hotspot feature (Wi-Fihotspot with up to 5 simultaneous devices (Wi-Fi hotspot iPhone 4 only)) on supported carriers.
Ability to set amount of times a text tone repeats (up to 10 times).
In field test mode refresh button has been removed & updated information has been displayed in bottom of the screen (it updates every 4–6 seconds).
Slideshow options moved to Photos app.
New look for taking a picture for a Contact.
When receiving a text message, the iPhone now vibrates 2 times.
All notifications concentrated to Notification Center: swipe downwards from the status bar to open it. Notification center shows a list of all notifications and widgets (widgets available only on iPhone & iPod Touch).
Notification order can be arranged.
Choose Notification Type: Banner notifications, the classic pop-up notifications, or no notification at all (selectable on an app-by-app basis).
Notification list on lock screen. Swipe an icon to unlock and go to the specific notification.
Notifications announcing earthquakes with 2 minutes (only in Japan).
Messaging between all iOS devices running iOS 5 through Wi-Fi or 3G. Allows to send text, photos, videos, contacts, and locations.
All iMessages and conversations will be synced between all iOS devices linked under a single Apple ID. You can start a conversation on one device and continue it on another.
Can message between multiple people simultaneously (group messaging).
Shows when other person(s) is typing.
Optional read receipts (enable in Settings).
Animated GIF image support for iMessage.
Ability to set how many times an alert will be shown when a new message is received (ranges from once to ten times).
The name of the person that responds appears in small light blue text directly above the response when SMS is sent to a group.
Slight redesign for text messages. Font & time-stamp layout.
Hide keyboard; hidden by downwards scrolling in message screen (after being used to type a message). Unhidden again by tapping in text entry field.
Can now create, rename, and delete calendars right on the device.
Tap and hold or double-tap to create a new event.
Tap and hold in "all-day events" to create a new all-day event.
Drag appointments to a new time slot.
Drag handles to change start and end times.
Creating new Event, now an "Invitees" field; takes to screen for multiple email address entry, emails sent to all invitees once event is saved.
Invitee can "Accept"/"Decline"/"Maybe"; reply sent to iCloud servers then reflected for all invitees to see.
Calendar event on device lists those invitees accepting event.
All users on iOS 5.x devices get notification when event is nearing.
Ability to specify a time zone to events.
Ability to add URLs to events.
Current time on Calendar if in landscape mode.
Navigate in day view by swiping.
Event attachments can now be viewed directly in the app.
Share calendars through iCloud with friends and family. Edits made by subscribers to that calendar are updated and pushed to other subscribers of that calendar (can be disabled by the creator of the calendar and locked so others cannot make edits).
Japanese or Buddhist calendars support.
Rich text formatting (bold, italics, and underline).
Ability to mark multiple mail items as read.
Ability to flag emails.
Draggable mail address in the recipients field.
Alert if the subject line is blank.
Search now includes body of messages.
Delete mails while in Airplane mode.
Exchange Activesync Email can now be deleted offline.
Can create new email folders.
Ability to show 1000 recent messages; 25 message option removed.
Ability to create additional @me.com email address within the Mail settings.
Ability to increase quote level in Mail settings.
New and updated tiny icons on Mail for Windows Live Mail, Gmail, Exchange, etc.
Hotmail accounts now have new icons and folders.
While reading an email you can swipe right to open a list of messages and swipe left to bring back the open email message again.
If you have multiple email accounts configured in Mail.app, swipe left or right from one’s mailboxes folder list, it will take you to another account’s mailboxes.
Support for three popular Chinese email services: Tencent’s QQ Mail, and Netease’s 163.com & 126.com mail inboxes.
Built-in basic photo editing: crop, red-eye, auto-enhance and rotate photos.
Ability to create and edit local photo albums folders (only those that aren't synced with iTunes).
Ability to sync pictures taken on one iOS device automatically with other iOS 5 devices using Photo Stream.
Ability to select all when adding pictures to an album.
Slight re-design for video time-line under Photos app.
Safari Reader: new "Reader" icon appears in address bar if Safari detects a webpage article, removing need to click-through to each page. Scrollable window sheet appears over current webpage showing all article pages together separated by page breaks, removing ads and page clutter.
Ability to change font size in reader mode.
Reading List: a new area of the bookmarks window has been added, purposed for pages you might want to read later. New pages can be added from a new option in the action menu or when long-pressing on a link.
Items from the Reading List can be synced to iCloud to be pushed to all of your other iOS devices.
Safari bookmarks can be synced to iCloud.
Ability to open pages in background or in new page (change in Settings).
Ability to replace a word with a word from a list of similarly spelled words spellings when typing in a text box on a web page.
Private Browsing; interface colours change from blue to black (change in Settings).
Ability to remove custom website data.
CSS fixed position support.
Slight fade out at end of long URLs (instead of ellipses) in the address bar.
Points in Game Center: shows you how many points you have on the home screen of Game Center.
Sort and view Friends on the basis of Points.
Games can be purchased from within Game Center.
New Friend requests screen.
Native support for turn based games.
Help Center: learn more about every option under settings app to explore more about it.
New menu under Location Services called System Services where certain services can be toggled on or off (such as setting the time-zone, location-based iAds, Diagnostics, etc.).
Hearing Aid Mode.
Ability to rename your device.
Ability to set up an AirPort base station or Time Capsule devices.
Ability to organise Notification Center items "Manually" or "By Time".
Can select which apps can be included in Notification Center.
Can select which type of notification will be used for each app: banner notification, classic pop-up style notification, or no notification.
Ability to turn off app badges.
On the "Ringtone" and "Text Tone" page, instead of showing "new", they are all in one category now.
Custom sounds for New Message, New Voicemail, New Mail, Sent Mail and Reminders alerts.
Ability to purchase text, email, and voicemail alert tones.
Under "Mail, Contacts, Calendars", on the bottom it shows "Reminders" and gives an option to Sync.
In the "Messages" section, the "Alerts", "Show Preview", and "Repeat Alert" options have been removed.
The Usage screen is improved and now shows how much of the memory is consumed by each app.
Storage usage clean up.
Backup to iCloud shortcut added.
Software Update menu added. This allows you to update your device independently without a computer with iTunes installed; the update downloads directly to the iOS device (Requires Wi-Fi or cellular network connectivity). It becomes easier and faster this way.
Photo Stream settings.
New purchases Settings; automatically download new purchases made on other devices (for music, apps, and books). This can also be enabled or disabled for use on cellular when not connected to Wi-Fi.
Twitter sign-in OS-wide with support for multiple Twitter accounts.
Ability to set left or right for mono audio.
Ability to turn on/off sending of iOS diagnostic data to Apple.
Ability to create keyboard shortcuts to replace custom phrases. By default includes "omw" which expands to "On my way!".
Emoji keyboard no longer requires an app to enable it (regarding non-Japanese devices).
Define your own words in Offline Dictionary.
New keyboard with prominent # (hash-tag) and @ (mention) buttons for Twitter app similar to the ".com" button when entering an address into the Safari address bar.
New Chinese-Pinyin keyboard spreading.
Quick Chinese input method.
List of associated words show on the top of Chinese input keyboard.
Siri now available on iPad (3rd, 4th generation and Mini) and iPod Touch (5th generation).
Additional country and language support for Canada (English and Canadian French), China (Mandarin), Hong Kong (Cantonese), Italy (Italian), Korea (Korean), Mexico (Spanish), Spain (Spanish), Switzerland (Italian, French, German), Taiwan (Mandarin), US (Spanish).
Message previews can now be toggled on/off for alerts.
Calendar now shows the current date in the title bar.
Shows ending times for Calendar events.
Added "Do Not Disturb" for Notifications. (See Settings, below, for more information)
Shared Photo Streams. Photos can be shared with other contacts. Photos shared can be commented on and liked. Notifications are enabled for when a contact shares a photo with the user.
New sharing menu, using new icons.
Constantly shows a button to create new Albums.
Sharing menu has options for Twitter, Facebook, Weibo (when Chinese keyboard is enabled), as well as Copy, Slideshow, AirPlay, Use as Wallpaper, & Print.
Videos can be uploaded to Youku and Tudou when the Chinese keyboard is enabled.
New streamlined UI with white and black themes.
Late Night Mode equaliser.
Redesigned rewind, play/pause, and fast forward controls (videos kept the same touch controls from previous iOS software.)
"Bluetooth" moved to top of Settings list.
Added "Do Not Disturb" mode, allowing users to avoid calls and notifications unless calling parties are on the user's Favorites group. A crescent moon icon will appear in the status bar when enabled. Has no effect when the screen is on.
Fullscreen landscape mode (for iPhone and iPod Touch).
iCloud tab syncing across iOS devices and Macs.
Offline Reading List caches the user's Reading List for later use, even when not connected to the Internet (not available for iPhone 3GS and iPod Touch (4th generation)).
Smart App Banners: Banners on mobile webpages prompt users to download the website's native App Store counterpart in the App Store.
Apps in search results.
Support for photo upload via Camera Roll to web forms with <input type="file"> elements.
Support for up to 24 open tabs on iPad (up from previous limit of 9).
Bookmarks window now displays tabs along the bottom of the window for switching between viewing "Bookmarks", "History" and "Reading List"; previously was just listed all in one source list (iPad 2 and later only).
Bookmarks button changes to Reading List icon with a progress bar when updating the Reading List for offline use (iPad 2 and later only).
Long press the "Back" or "Forward" button to reveal the browsing history (for iPhone 3GS and later, iPod Touch (4th generation) and later. Previously only available for iPad since iOS 5.x).
New music controls on lock screen when you double-press home button.
Siri can now purchase movie tickets via Fandango (USA only).
LTE now works with several European, African, Asian and American carriers.
Individual songs can once again be downloaded or deleted when using iTunes Match.
An empty Passbook will automatically add a sample pass explaining passbook functionality. The pass text changes slightly for users in British English speaking countries, changing "movie tickets" to "cinema tickets" in the first sentence, and "theaters" to "cinemas" in the last sentence.
Reset Advertising Identifier button now works.
New cellular data option for iTunes (it is available from iOS 6.0).
When setting up an iOS device for the first time with iCloud, it will now ask you to confirm your Apple ID password for FaceTime and iMessages. It will also ask you to confirm how you'd like people to reach you, and tells you that you can change these settings at any time later on.
Fixed an iPhone 5 bug that prevented the phone from reconnecting to the cellular network when it lost connection for an extended amount of time.
"Accessory attached" splashscreen removed. Bi-directional control now possible.
Fixed a Bluetooth A2DP trigger delay - the beginning of the audio stream cut off (e.g. when navigating turn-by-turn, you heard "HT in .5 miles" instead of "TURN RIGHT in .5 miles" in your A2DP headset/speakers)
Fix CVE-2014-1266, a bug in Secure Transport that can cause it to fail to properly authenticate a SSL/TLS connection. This bug also occurred in iOS 7, and was caused by a duplicate goto fail; statement in the source code that caused critical parts of the certificate verification code to become unreachable code. This bug is informally known as the goto fail bug as a result.
Flat design and move away from skeuomorphism in general (exceptions exist - for a move towards more skeuomorphism, see for example the Countdown with a new skeuomorphic 3D animation of a spinning wheel).
Full Screen apps that make use of the system status bar and navigation bar.
Translucent design in tab bar, navigation bar, status bar, system keyboard, Control Center, and Notification Center (some translucent layers not on the iPhone 4, the iPad 2 and the iPad 3 due to hardware constraints.
Opaque design in Alert view, Action Sheet and Share Sheet.
Borderless buttons in general.
Back navigation gesture by swiping from left edge of the screen.
New UI for arranging tab-bar icons.
System-wide dynamic font size, configurable in Settings.
Enhance the viewing experience of non-iPad apps on iPad 2 and iPad mini, remove the 1x and 2x toggle, apps are opened in ’2x’ mode by default on iPad 2 and mini.
Spotlight Search is now accessible on each screen by pulling it down.
"New" banner on newly installed apps have been replaced with blue dots.
Brand new icons for built-in apps.
Newsstand is now a dedicated app instead of a folder.
A unified screen to quickly access toggles and controls for system settings and services, and for using AirDrop and AirPlay.
System wide, accessible by swiping upward from the bottom of the screen.
Accessible in the lock screen.
Flashlight (device-specific features that come with physical camera) toggle button.
No longer included in the AssistiveTouch, they appear on the layer of the image.
User is warned when plugging their iOS device into their Mac/PC, "Trust the currently connected computer? Trusting this computer will allow it to have full access to your device and all of its data."
Save to iCloud.
Share using AirDrop.
1xRTT icon on CDMA iPhones changed from "o" icon to "1x" icon.
GPRS icon on GSM iPhones changed from "o" icon to "GPRS" icon.
Dots representations for cellular signal strength.
Icon size slightly increased for better readability on the lock screen.
Charging the battery: rather than battery image on the lock screen, x% charged briefly appears under the clock, then reverts to the date.
Access to Notification Center and Control Center.
When playing music, the lock screen will now display the time.
iPad has Camera control on the lock screen, like the previous version on iPhone and iPod Touch.
Timer counting down is shown when the device is locked.
Scrubbing bar is now displayed on the lock screen.
New Wi-Fi diagnostics mode.
Wi-Fi Hotspot 2.0.
New first-time setup menus.
The unlock sound from previous iOS releases up to iOS 6 is no longer present. From now on, whenever one either correctly inputs a passcode or simply slide to unlock on the lock screen, no sound will play when unlocking a device's lock screen.
Photos & Camera tab in iOS Settings has a new "Upload Burst Photos" option.
You can disable Parallax effect independently of other animations when setting up wallpaper.
Notification Center now displays "No Notifications" and "No Missed Notifications" for the "All" and "Missed" sections respectively when there are no notifications.
Caller ID photos: no longer full screen, instead small circle portrait for incoming/outgoing calls.
New Yahoo logo, in both Notification Center and the Weather and Stocks apps.
A new dialogue "Touch ID requires your passcode when iPhone restarts" when restarting.P5S
New iPad wallpapers.
"Touch ID and Passcode" has been moved-up to the main menu in Settings.
Animations and transitions are noticeably faster.
Keyboard has new Shift/Backspace key highlights.
Control Center has a new "spring" animation upon opening.
Control Center sliders — volume and brightness — have momentum.
Icons for Phone, Messages and FaceTime apps have less vibrant colors.
Music app: Albums now in descending order when browsing by Artist.
The buttons are circular in shape and do not show the word of what the icon means.
The Phone and FaceTime app have a new-look dialer and "end call" button.
The slide-to-power-off UI has been redesigned; the shape of the slider is circular and the thing that says "slide to power off" is oval in shape. Same with the "slide to answer" slider in the Phone and FaceTime apps.
Fixes a home screen crash bug.
Fixes display of Mail unread badge for numbers greater than 10,000.
Apple announced iOS 8 on June 2, 2014 at its annual Apple Worldwide Developers Conference (WWDC) event, with release announced for sometime in Fall (Northern Hemisphere) or Spring (Southern Hemisphere) 2014. At their iPhone event on September 9, 2014, Apple announced the full release of iOS 8 for September 17, 2014, while also unveiling the iPhone 6 and iPhone 6 Plus. With this release, Apple resumed the cycle of dropping support for older devices, specifically the iPhone 4. Supported devices on this release include the iPhone 4S onwards, iPod Touch (5th generation) onwards, the iPad 2 onwards, and the iPad Mini (1st generation) onwards. iOS 8 has limited support on the iPad 2, iPhone 4S, and the iPod Touch (5th generation). iOS 8 was also the first version of iOS to have public beta testing be available, not just to developers. The first ever public beta was iOS 8.3 Public Beta 1. All major updates from this one on will receive public beta's; minor ones don't usually receive them. The final version of iOS 8 is iOS 8.4.1. This release fixed some bugs present with Apple Music and patched TaiG Jailbreak.
Table of versions: iOS 8.x – iPhone, iPad, iPod Touch
Ability to send voice messages instantly by using a new "microphone" button to the right of the text entry field.
Pressing and holding on the microphone button lets you record your voice and then swipe up to send it.
Messages can be listened to by either pressing play or raise to listen. Messages can also be listened and responded to on the Lock Screen by raising to listen and raising to respond.
Ability to send photo and video messages instantly by using the "camera" button to the left of the text entry field.
Pressing and holding on the camera button lets you take a photo or record a video and instantly send it.
Tapping the camera button shows the most recent photos in your camera roll. Options are also present for taking a new photo or video and to view your entire photo library. Multiple photos and videos can be selected to send at once.
A new details menu is available for each conversation which contains many new functions:
You can now title group message threads.
A list of everyone participating in a message thread is listed with buttons to call, FaceTime and view their full contact card.
Ability to drop or add people to groups.
Ability to leave groups.
Send current location.
Can share location with an individual or group for one hour, until the end of the day or indefinitely until you choose to stop.
Do Not Disturb option per group.
A collection of all photos that have been sent in a message thread.
Batch save/delete all images in a message thread.
Messages threads are now synced between all of your devices.
Images in conversations are now much larger.
Scrolling to the top of a message will now automatically cause older messages to load.
Can mark all texts as read.
Added options to automatically delete standard messages after 1 year, 30 days or never.
Added options to automatically delete video/audio messages after 2 minutes or never.
Faces of contacts display next to contact name on select iPhones.P6P
Left swipe to delete albums.
Can add music to a playlist from another playlist.
The faces of recently conversed people now appears above the open applications, and with a swipe to the right one can also access their favorites.
The animation speed when entering and leaving the app switcher is now much faster.
Share sheet action icons are now redesigned.
Share sheet icons can now be rearranged and hidden.
Improved animation system. Gestures such as bringing down Notification Center won't be blocked by an animation, such as the home screen icons flying in.
Can swipe to the left for options to flag it for follow-up, move it to a folder or delete.
Can swipe all the way across the screen to the left to delete immediately.
Can swipe all the way across the screen to the right to mark as read/unread.
Ability to swipe mail compose sheet down allowing access to the rest of ones mailbox to gather the information needed in order to compose the message.
When Mail recognizes a reservation, flight confirmation, or phone number in an email, a notification appears at the top of the message. In order to add it to the calendar or contacts, one needs to tap the notification(s).
Mail conversations are now threads.
Individual threads can be set as VIP so that the user will receive a notification when a reply is received.
Per thread S/MIME.
Automatic reply messages.
Can delete attachments.
New mailboxes: Unread, To or CC, Attachments, Thread Notifications, Today.
Option to auto optimise storage on device by removing local copies of pictures and videos.
Smart composition tools.
Play/Pause button next to the record button in Voice Memos.
App shortcuts for Handoff on the Lock Screen.
App shortcuts on the Lock Screen based on your location.
Audio iMessages received while the phone is locked can be listened to by raising to listen and responded to by raising to respond.
iTunes Radio "buy" song button on Lock Screen.
iTunes Radio skips remaining displayed on Lock Screen.
New animation when opening apps from the Lock Screen.
Access to Medical ID from emergency dialer.
New "Slide to Unlock" text in certain languages.
QuickType – as one types, they see choices of words or phrases one would probably type next, based on their past conversations and writing style, using a more formal language for mail, and a casual one for Messages. The system also adjusts the system based on the person one converses with, and the region of the user (currently available in 14 countries).
QuickType can be hidden by swiping down.
QuickType can be toggled on or off from within the keyboard switcher.
Extra functions added to the keyboard on select iPhones.P6P6P
Smiley icon for when emoji keyboard is the only alternate keyboard set up. Becomes a globe icon when multiple keyboards are set up.
Streaming voice recognition for Speech to Text.
iOS 6 keyboard no longer appears in apps that are not optimized or updated to a version optimized for iOS 7 or higher.
New keyboards (Indian language and Indian English keyboards, Tagalog, Irish Gaelic, and Slovenian).
Family Sharing – a service of sharing purchases from iTunes between up to 6 people.
All group members must pay for family purchases with the same credit/debit card.
Ask To Buy – a parent can approve youngsters’ spending right from a parent’s device.
Coincides with iCloud Photo Library – automatically sets up a family photo stream where you can share photos, videos, and comments, and all the family photos are available from any device within the family.
Offers shared calendar and Reminders.
Family Sharing can automatically share the user's location with the family members, or keep their location hidden.
With the Find My iPhone app, family members can use their devices to locate one that’s lost and have it play a sound.
Apple IDs for youngsters under age of 13 years are now possible due to Family Sharing.
Health app –shows a dashboard of all the fitness and health data of the user (iPhone and iPod Touch only).
Shows the heart rate, calories burned, blood sugar, cholesterol, etc. of the user.
One can create an Emergency card with medicinal details, from within either the application or the lock screen.
Natively tracks steps taken and other movement activity within the Health app.
Export health data.
Continuity – iPhone, iPad, iPod Touch, and Mac communication.
Handoff – start writing an email or surfing a website from one device, then carry-on the activity from another device. (Requires all devices are connected to the same iCloud account) P5P5CP5SP6P6PT5S4S5M1M2
Answer a phone call, receive and send SMS/MMS from an iPhone on an iPad or a Mac. (Requires all devices run iOS 8 or OS X Yosemite, and are connected to the same Wi-Fi network or to the device's hotspot).
Intelligent hotspot – intelligently discover when an iPhone is nearby and automatically list the device under Wi-Fi networks in Settings.
Shutter Mode (timer can be set to 3 or 10 seconds).
Burst photos can now be taken with the FaceTime camera in addition to the iSight camera.P5SP6P6P
Every app installed now has its own settings panel, regardless of whether the app specifies its settings to appear in the Settings app (e.g. Notifications, Privacy, Background App Refresh, and Cellular Data usage).
Option to Enable/Disable dictation in keyboard settings.
iBooks icon and Reader view icon in Safari have been redesigned.
Settings app for third-party apps has been tweaked.
Apple Pay support for iPhone 6 and iPhone 6 Plus (in physical store, online, or in app) P6P6P, Apple Watch-compatible devices (in physical store) P5P5CP5SP6P6P, for Touch ID devices (online or in app). P5SP6P6PP6PS6M3
Adds iCloud Photo Library as a beta service.
Adds Camera Roll and My Photo Stream albums back to Photos app after disappearing in iOS 8.0.x.
Removes Recently Added album.
Provides alerts when running low on space before capturing Time Lapse videos.
Adds the ability for iPhone users to send and receive SMS and MMS text messages to an iPad, iPod Touch and OS X Yosemite.P5P5CP5SP6P6P
Resolves an issue where searching messages would sometimes not display results.
Fixes a bug that caused read messages not to be marked as read.
Fixes issues with group messaging.
Resolves issues with Wi-Fi performance that could occur when connected to some base stations, like the FIFA 15 Ultimate Team servers.
Fixes an issue that could prevent connections to Bluetooth hands-free devices.
Fixes bugs that could cause screen rotation to stop working.
Fixes an issue in Safari where videos would sometimes not play.
Adds an option to select between 2G, 3G, 4G, or LTE networks for cellular data on certain carriers (iPhone and iPad (Wi-Fi + Cellular) only).
Adds AirDrop support for Passbook passes.
Adds instant tethering for OS X Yosemite.
Enables HealthKit apps to access data in the background.
Fixes an issue that prevented Guided Access from working properly.
Fixes a bug where VoiceOver would not work with third-party keyboards.
Fixes an issue where you could be continuously prompted for login credentials
Addresses an issue where some devices disconnect intermittently from Wi-Fi networks
Fixes an issue where hands-free phone calls could become disconnected
Fixes an issue where audio playback could stop working with some bluetooth speakers
Orientation and rotation fixes
Addresses an issue that sometimes prevented rotating back to portrait after having rotated to landscape
Improves performance and stability issues that occurred when rotating the device between portrait and landscape
Fixes an issue where device orientation appeared upside down after pulling the iPhone 6 Plus from your pocket
Resolves an issue that sometimes prevented apps from rotating to correct orientation after switching apps in multitasking
Addresses issues that caused group messages to sometimes split
Fixes an issue that sometimes removed the ability to forward or delete individual messages
Resolves an issue that sometimes prevented a preview from appearing when taking a photo in Messages
Adds the ability to report junk messages directly from the Messages app
Adds the ability to filter out iMessages that are not sent by your contacts
Family Sharing fixes
Fixes a bug where certain apps would not launch or update on family members’ devices
Fixes a bug that prevented family members from downloading certain free apps
Increased reliability for 'Ask to Buy' notifications
Fixes an issue where Maps could come up as a black screen
Fixes an issue where the UI could be incorrectly rotated
Fixes an issue where the keyboard could appear on the CarPlay screen when it shouldn't
Improves reliability of installing and updating enterprise apps
Corrects the time zone of Calendar events created in IBM Notes
Fixes a problem that could cause web clip icons to become generic after restarting
Improves reliability of saving the password for a web proxy
Exchange out-of-office message can now be edited separately for external replies
Improves recovery of Exchange accounts from temporary connection problems
Improves compatibility of VPN and Web proxy solutions
Allows use of physical keyboards to log in to Safari Web sheets, such as for joining a public Wi-Fi network
Fixes an issue that caused Exchange meetings with long notes to be truncated
Fixes an issue where using the back button in Safari causes VoiceOver gestures to not respond
Fixes an issue where VoiceOver focus becomes unreliable in draft Mail messages
Fixes an issue where Braille Screen Input cannot be used to type text in forms on webpages
Fixes an issue where toggling Quick Nav on a Braille Display announces that Quick Nav is off
Fixes an issue keeping app icons from being moveable on home screen when VoiceOver is enabled
Fixes an issue in Speak Screen where speech will not start again after pausing
Other improvements and bug fixes
Introduces a redesigned Emoji keyboard with over 300 new characters
iCloud Photo Library has been optimized to work with the new Photos app on OS X 10.10.3 and is now out of beta
Improves the pronunciation of street names during turn-by-turn navigation in Maps
Includes support for Baum VarioUltra 20 and VarioUltra 40 Braille displays
Improves the display of Spotlight results when Reduce Transparency is turned on
Adds Italic and Underline format options for iPhone 6 Plus landscape keyboard
Adds the ability to remove shipping and billing addresses used with Apple Pay
Additional language and country support for Siri: English (India, New Zealand), Danish (Denmark), Dutch (Netherlands), Portuguese (Brazil), Russian (Russia), Swedish (Sweden), Thai (Thailand), Turkish (Turkey)
Additional dictation languages: Arabic (Saudi Arabia, United Arab Emirates) and Hebrew (Israel)
Improves stability for Phone, Mail, Bluetooth connectivity, Photos, Safari tabs, Settings, Weather, and Genius Playlists in Music
Addresses an issue where Slide to Unlock could fail to work on certain devices
Addresses an issue that sometimes prevented swiping to answer a phone call on the Lock screen
Addresses an issue that prevented opening links in Safari PDFs
Fixes an issue where selecting Clear History and Website Data in Safari Settings did not clear all data
Fixes an issue that prevented autocorrecting "FYI"
Addresses an issue where contextual predictions did not appear in Quick Reply
Fixes an issue where Maps did not enter night mode from hybrid mode
Resolves an issue that prevented initiating FaceTime calls from a browser or third-party app using FaceTime URLs
Fixes an issue that sometimes prevented photos from properly exporting to Digital Camera Image folders on Windows
Fixes an issue that sometimes prevented an iPad backup from completing with iTunes
Fixes an issue that could cause Podcast downloads to stall when switching from Wi-Fi to cellular networks
Fixes an issue where remaining time on timer would sometimes incorrectly display as 00:00 on Lock screen
Fixes an issue that sometimes prevented adjusting call volume
Fixes an issue that caused the status bar to sometimes appear when it shouldn’t
Attempt to fix problems with custom keyboards crashing, not appearing, or being replaced with the default keyboard
Can be jailbroken via the TaiG 2.0 jailbreak. Latest TaiG version is 2.4.3.
Adds support for the new Apple Music streaming service which is available in 100 countries starting on June 30, 2015.
New features including personalized music discovery and recommendation based on the user's favorite genres or artists. Also adds support for a 24/7 online radio service called Beats 1 and new Connect tab in which all artists can communicate with their listeners.
Apple Music costs $9.99/month for 1 person and $14.99/mo. for up to 6 people and a free trial will be given to users for 3 months.
Apple Radio, Beats One, and Connect feature are still available for users not choosing to subscribe to Apple Music
Completely Redesigned Music Application
Recently Added tab makes it easier to discover music that you recently added
MiniPlayer makes it easier to see what's currently playing and to control music playback
Up Next section lets you see and control what is going to play next
Enables search from anywhere in the music application with a new unified magnifying glass icon at the top. Trending Search was added which shows which music within Apple Music is being searched for most by users.
Adds support for offline music playback including a toggle and icon to show which songs are available offline.
iBooks improvements and fixes
Browse, listen, and download audiobooks inside iBooks
Enjoy the all-new Now Playing feature, designed specifically for audiobooks
Books that are made for iBooks now work on iPhone and iPad
Improves accessibility of widgets, glossary, and navigation in books made with iBooks Author
New default Chinese font.
New setting to turn off Auto-Night theme in your library
Resolves an issue that may have prevented Hide Purchases from working
Resolves an issue that may have prevented downloading books from iCloud.
Bug Fixes and Stability improvements
Fixes an issue where receiving a specific series of Unicode characters causes device to reboot.
Fixes an issue that prevented GPS accessories from providing location data
Fixes an issue where deleted Apple Watch apps would re-install
Apple announced iOS 9 on June 8, 2015 at its annual Apple Worldwide Developers Conference (WWDC) event, with public release on September 16, 2015. With this release, Apple did not drop support for any iOS devices, with all devices supporting iOS 8 being eligible for an upgrade. Supported devices on this release include the iPhone 4S onwards, iPod Touch (5th generation) onwards, the iPad 2 onwards, and the iPad Mini (1st generation) onwards, making iOS 9 have the most supported devices out of any other iOS release, with 18 devices. The iPad 2 is also the first iOS device to support six major releases of iOS, supporting iOS 4 to 9. This is the greatest amount of major iOS releases a single iOS device has supported, surpassing the iPhone 4S which supports five major releases (iOS 5 to 9), and iPod Touch (5th generation) supporting four major releases (iOS 6 to 9). However, iOS 9 has limited support on the iPad 2, iPhone 4S, the iPad Mini (1st generation), and the iPod Touch (5th generation).
Table of versions: iOS 9.x – iPhone, iPad, iPod Touch
Support for public transit lines, station details with exits and entrances, schedules and directions in select major cities. Also, popular places such as restaurants, stores, and points of interests will be highlighted and presented to the user in a central location.
Apple Pay support is indicated on place cards at participating retail locations
Adds support for "Follow up by Email" that allows Apple to email users about issues reported.
Browse for places nearby by category, including Food, Drinks, Shopping, Fun and more
Place cards include Wikipedia information for landmarks and cities
Adds a new app called News which provides curated lists of personalized news content for iOS users, offering up content from popular websites and newspapers and displaying it in an iOS-friendly layout. This app replaces the Newsstand app.
There are now video recording settings to change the quality of recorded videos.
There is a new iCloud Drive app which can be enabled in the iCloud Settings.
Battery moved to the top level.
Updated Notifications icon.
Additional options for Auto-Lock.
Adds 15 new wallpapers to iOS which replaces most of the wallpaper present in iOS 8
When changing wallpapers, there is a new "Still" option which keeps the wallpaper still.
Replaces the Passbook app with a new app called Wallet and enhances the features of Apple Pay with Discover Credit/Debit Card support, Store Loyalty Card support, and support for Apple Pay in the UK.
To check out even faster, upcoming payments can be prepared by double-clicking the Home button from the Lock Screen and keeping the finger on Touch ID.
Renamed from Apple Watch.
Updated haptic feedback icons.
Up to one hour of additional time before the battery needs to be charged
Facedown detection for turning display off when not in use
New Low Power Mode (iPhone only) disables Background App Refresh, Mail Fetch, Motion Effects, and Animated Wallpapers. It also extends device's battery life by up to three hours.P4SP5P5CP5SP6P6PP6SP6SP
Low Power Mode turns off when device is connected to a power source.
Notification Center Widget (when paired with Apple Watch).
Siri has a new colorful interface, similar to that of the Apple Watch.
Removed sound from Siri activation.
Updated Siri icon in Settings.
Search personal photos and videos based on dates, locations and album names
Ask Siri to remind about things being looked at in apps, including Safari, Mail, Notes and Messages
Request directions via public transit
Siri can now use an accent (same language) which differs from the input language.
Siri no longer asks for confirmation of reminders that are created.
A more intelligent Spotlight search provides info such as Weather, News, Stocks, nearby places, and recent/favorite contacts based on the user's preference. Spotlight search can be activated by swiping to the right on the first page of the home screenP5P5CP5SP6P6PT6S4S5S6M2M3 or swiping down on any page of the home screen.
Perform tasks such as currency conversions and calculations.
Get sports scores, weather conditions and stock prices
Initiate messages, phone calls and FaceTime calls from contact search results
Redesigned notification center view when in landscape.
New keyboard now displays whether the letters are upper-case or lower-case depending on whether the Shift key has been toggled or not.
Cut/Copy functions on the keyboard have been replaced with an Undo/Redo button. The Cut/Copy buttons still appear when text is selected.
Over 50 new flag emojis.
A "deep press" (3D touch) on the keyboard will convert the keyboard to a track pad to move the cursor and make it easier to manipulate text. (Only for 6s and 6s+)
Ability to disable character preview.
Performance and stability improvements
Extends the battery life of iOS devices by an extra hour.
Minimizes iOS update file size to 1.3 GB.
Improves performance on iOS devices by utilising Metal API throughout iOS to deliver faster scrolling, smoother animation, and better overall performance.
Reduced touch latency from sixty milliseconds to less than thirty milliseconds.
Touch ID devices now use a 6-digit passcode by default, though a 4-digit option is still available alongside options for a passcode with a custom number of digits and an alphanumeric passcode.P5SP6P6PS6M3
Adds 2-factor authentication for iCloud on iOS.
Adds support for add a IKEv2VPN directly in Settings without need for third-party app.
Print preview screen. Allows the user to view all pages, select which pages to print, and print in black and white.
Leave a message option if recipient isn’t available for a FaceTime call
Share voicemails from the Phone app using the share sheet
Added confirmation dialog when an app attempts to open another app.
Support for right-to-left languages.
Flight and package tracking for data detectors
iCloud Drive app
Easily search for a file or browse in the new iCloud Drive app by date, name, or tags added on associated Mac
Open files in any compatible app
Organize folders and files
Get the iCloud Drive app in Settings > iCloud > iCloud Drive and select Show on Home Screen
Wi-Fi Assist to automatically use cellular data when Wi-Fi connectivity is poor
On October 23, 2011, Apple TV (2nd generation) received the iOS 5.0 software, with My Photo Stream, AirPlay mirroring (from iPhone 4S & iPad 2), NHL, Wall Street Journal, slideshow themes and Netflix subtitles. Contrary to rumors and code found in iOS 5, the release did not bring support for Bluetooth or apps to the Apple TV (2nd generation).
Table of versions: iOS 5.x – Apple TV (2nd generation) onwards
On September 24, 2012, Apple TV (2nd generation) onwards received the iOS 6.0 software update, with Shared Photo Streams, iTunes account switching, better AirPlay functionality, and Trailers searching, among other smaller improvements.
Table of versions: iOS 6.x – Apple TV (2nd generation) onwards
Shared Photo Streams: Accept invitations for Shared Photo Streams, browse photos and comments, and receive notifications of new content.
AirPlay: Send audio content from Apple TV to AirPlay-enabled speakers/devices (including AirPort Express and other Apple TVs). Also includes the ability to require an onscreen code to use AirPlay with your Apple TV.
iTunes account switching: Save multiple iTunes accounts and switch quickly between them.
Trailers: Search for movie trailers. In the United States, see show times for local theaters.
Screen savers: New Cascade, Shrinking Tiles, and Sliding Panels screen savers.
Main menu: Reorder icons on the second page by holding down the select button on the remote.
Subtitles: SDH support for the deaf and hard-of-hearing as well as improvements to viewing and selecting subtitles.
Network configuration: Support for setting up advanced network options using configuration profiles.
Stability and performance: Includes general performance and stability improvements.
Includes ability to make hiding channels easier
Security option to require that iOS devices or Macs be verified with a one-time, onscreen code before using AirPlay (requires iOS 7.1 or later on an iOS device or a Mac with OS X 10.9.2 or later).
Adds support to allow an AirPlay device to discover Apple TV over Bluetooth in environments where multicast or Bonjour traffic is blocked on the network or the AirPlay device is on a different subnet.
View your purchased TV Shows and Movies in the Remote app and tap to play them instantly on Apple TV.
Create and play iTunes Radio stations (requires Remote app version 4.2 or later).
Stability and performance
Includes bug fixes, general performance and stability improvements.
Redesigned UI that adopts a similar look to the "flat" look that is presented in iOS 8 and OS X Yosemite.
UI redesign includes redesigned icons and borders, menus, and many of the controls inside many of the apps that are included with the Apple TV.
Maintains the same layout of all the menus and options.
Adds support for a service of sharing purchases from iTunes between up to 6 people.
Supports iTunes music, video, podcasts, and TV show purchases.
Does not include ringtones, books, audiobooks, or apps from the App Store as these services are not supported on the Apple TV
All group members must pay for family purchases with the same credit/debit card.
Ask To Buy – a parent can approve youngster’ spending right from a parent’s device.
Descriptive Video Services
Hear descriptive video with a new accessibility feature support select iTunes movies and TV shows.
Guests can AirPlay from their Mac or iOS device directly to your Apple TV without connecting to your wireless network. (Requires ATV 3 Rev-A (A1469), iPhone 4S and later; iPad 2 and later; and iPod Touch (5th generation) running iOS 8 or a Mac running OS X Yosemite (10.10) or later.)A3R
Peer-to-peer AirPlay requires a special on-screen code that is presented on the Apple TV to be entered into the device that is used to output video through AirPlay.
Listen to music that's always with you.
Adds a new Beats Music app with support for the entire Beats Music library
Beats Music was added to the Apple TV as a part of Apple's acquisition of Beats Inc.
tvOS (stylized by Apple as tvOS) is a new operating system that is 95% based on iOS 9, with adaptations made for a television interface. It was announced on September 9, 2015 alongside the new iPad Pro and iPhone 6s. Tim Cook took the stage and introduced tvOS saying that it was time for the Apple TV to gain a modern OS with support for apps as they are "the future of TV". It will be available only on the Apple TV (4th generation) released in October 2015. It will add support for features such as a native SDK for developing apps as well as an App Store to distribute them. Also, it adds support for Siri and universal search across multiple apps. A tvOS beta was seeded to those developers who signed up and applied to be a part of the Apple TV developer program. Developers who did this were given early access to the new fourth generation Apple TV as well as the new TvOS 9.0 software to help them develop applications for the TV.
Table of versions: tvOS 9.0 – Apple TV (4th generation) only
Introduces an entirely new user interface that uses lighter colors and transparency as well as adding support for control via an all new remote. This remote can be used to navigate the user interface by using multi-touch gestures on the trackpad on the remote rather than physical buttons.
Adds support for an all new SDK for developers to build apps for the TV including all of the APIs included in iOS 9 such as Metal.
Adds an App Store which allows users to browse, download, and install a wide variety of applications from things such as games, video applications, etc.
Developers can now use their own interface inside of their application rather than only being able to use Apple's interface.
Adds support for Siri which can be toggled by pressing the microphone button on the remote.
Siri, in addition to being able to do everything it can do on iOS, is able to take many voice commands tailored for the TV. Siri can do many things such as a cross-application search for a movie/TV show, rewind, fast forward, name and actor/director of the current movie, and even skip back 15 seconds.
It is now possible to switch between two applications just by double-clicking the trackpad on the remote and scrolling to he desired application.
It is now also possible to customize the home screen by placing whichever applications you please on the top row including third-party applications.
New cinematic screen savers display time-lapse images of scenic cities when the Apple TV is asleep.
It is now possible to control the volume of the TV as well as turn it on/off using just the new Siri Remote and the built in support for HDMI CEC in tvOS .
Adds support for pairing third-party Bluetooth game controllers in order to play games.
The Alarm feature of the built in Clock app in the iPhone and iPod Touch has been plagued by major bugs in all versions of iOS 4. The first bug noticed was the "DST bug" which was first seen when some countries switched to/from daylight saving time from/to standard time in October/November 2010. It caused recurring alarms to start going off an hour too early or late. Apple promised the bug would be fixed in iOS 4.2 but according to some reports it still exists even in iOS 4.3.1.
The second alarm clock bug discovered was the "New Year's Day bug" which showed up on January 1, 2011 as well as January 1, 2012. It caused non-recurring alarms not to go off at all. However two days after each New Year's Day, on January 3, 2011, they "magically" started working again. This bug was seemingly fixed in iOS 4.3.
Battery drain bugs Apple confirmed that several battery life bugs were negatively affecting battery life in iOS 5. They attempted to fix these bugs with iOS 5.0.1 and 5.1 but the problem still remained. Finally, these bugs were fixed in iOS 5.1.1.
Wi-Fi The launch of the iOS 5 update on October 12, 2011 (including iOS 5.0.1 released on November 10, 2011) led many users to report a major bug causing the device to lose Wi-Fi access. This problem has supposedly been fixed with the release of iOS 5.1.1
SIM card Some users of the iPhone 4S and iPad (Wi-Fi + Cellular) reported issues with the SIM card in iOS 5.0, and even though Apple attempted to fix these issues in version 5.0.1 build 9A406 (for iPhone 4S only), they still remained.
Echo bugs Some users of the iPhone 4 and iPhone 4S reported issues with having echo problems during phone call in the initial release of iOS 5, which causes echoes to appear randomly during phone calls made through earbuds. The other party in the call is generally unable to hear the conversation due to this problem. Apple has since released version 5.1.1 in an attempt to fix the problem.
Maps Apple has admitted that there were several bugs in the mapping app on iOS 6, with cities in the wrong location, some places being missed off altogether, some places misnamed and places of interest in the sea. Problems submitted by users have gradually been addressed with daily updates to Maps.
Bluetooth Many users report a problem with Bluetooth audio streaming to a range of compatible devices. The sound cuts out every now and then for no apparent reason. As of October 2012[update], no solution has been provided by Apple.
Location-based Reminders Location-based reminders do not work for iPads, even though they were promised to work on cellular enabled devices. It has later been clarified by Apple that only the 4th generation iPad and the iPad Mini 1st generation or later will be able to use this.
Cellular Network In iOS 6.1, users reported problems with cellular connectivity. This was addressed for the iPhone 4S in iOS 6.1.1 which "fixes an issue that could impact cellular performance and reliability for iPhone 4S".
Do Not Disturb Many iPhone users experienced a bug with the Do Not Disturb feature when the calendar changed from 2012 to 2013. The feature would be left on past the scheduled time set by the user, allowing texts, notifications, and alarm settings to be missed. The bug was caused by a difference in formatting in the ISO calendar system versus the Gregorian calendar system. Apple did not offer a quick software update for the bug, instead saying that the bug would fix itself on January 7, 2013.
Microsoft Exchange Another bug causes issues when iOS devices connect to a Microsoft Exchange server to retrieve email, resulting in message "mailbox server resources are consumed, log growth becomes excessive, memory and CPU use may increase significantly, and server performance is affected". Microsoft have suggested several workarounds, and Apple responded with a KnowledgeBase article describing the cause of the bug and a suggested temporary workaround, promising a fix in the near future, which was then fixed with release of iOS 6.1.2.
Lockscreen bypass code On iPhones, another bug found in 6.1 allowing bypassing the lock screen's passcode to temporarily gain full access to the Phone app, by performing a specific sequence of actions on the phone that remained unfixed, with Apple acknowledging the bug and then addressed with release of iOS 6.1.3.
Audio profile speakerphoneiPhone 5 users experienced dropped calls during the release of iOS 6.1.3 when there was an issue with the audio microphone profile. This also caused issues with many voice-over commands, including Siri, to get different results than expected or to fail easily. Apple fixed this bug with the release of iOS 6.1.4, which updated the audio speaker profile so users would get better results.
FaceTime Shortly when Apple released iOS 7, users running iOS 6 were said to have problems using FaceTime. Apple later released a support document stating that this was due to an expired device certificate and that devices that support iOS 7 should update to it in order to resolve these issues. Devices that are unable to run iOS 7, such as the fourth-generation iPod touch, should upgrade to iOS 6.1.6.
Data security An attacker can collect or modify data in sessions protected by SSL/TLS protocols. This same bug was also reported on iOS 7.0.4 and iOS 7.0.5 for the iPhone 5C & 5S. For the iPhone 3GS and the iPod Touch 4th generation, iOS 6.1.6 was released to fix this issue since iOS 7 had dropped support for these devices (see iOS 7.x).
In iOS 7, users that were running iPhone 4 to iPhone 5, iPad 2nd to 4th generations, first-generation iPad mini, and iPod Touch (5th generation) have developed bugs that were previously retained since iOS 6. One example is the SSL/TLS protocol when the secure transport failed to verify certification authenticity (fixed in iOS 7.0.6). This caused the iPhone 3GS (initially ended with iOS 6.1.3) and the iPod Touch 4th generation (initially ended with iOS 6.1.5) to advance one update to iOS 6.1.6.
Passcode screen bypass bugs People are able to bypass the "Enter Passcode" screen. This flaw was discovered within hours of it becoming publicly available. This is only able to be done on iPhone 5 and earlier while the iPhone 5C and iPhone 5S are safe from this bug. This is caused by the ability to use the control center via the lock screen and clicking on the camera or timer buttons. This feature is able to be turned off in the Settings app. This was fixed in iOS 7.0.2.
Motion Sickness Users complained about dizziness and vertigo-like symptoms when using this operating system because of parallax motion effects. In iOS 7.1, a new function in the Settings app called "Reduce Motion" was introduced to reduce the motion of the user interface and disable the parallax effects.
Creation of CardDAV Accounts not working Creating a CardDAV Account contains a bug that needs manual fixing of the CardDAV-Server-URL.
Battery drain problems In iOS 7.1, users have reported seeing significant drain on their batteries after installing the new update.
FaceTime Issues with video-calling and connection errors. This was fixed in iOS 7.0.4. (See iOS 6.x)
Safari ignores local domain Local domain names can no longer be resolved in Safari. This breaks short names on the local network, e.g. 'nas' for nas.<ourdomain>.
Home screen crashes Users have reported various crashes of the home screen, the core service that renders the home screen icons, Notification Center, Control Center, Siri and the lockscreen. This was fixed in iOS 7.1.
Data security Secure transport failed to validate the authenticity of connection. This issue was addressed by restoring missing validation steps. This may cause an attacker with a privileged network position to capture or modify data in sessions protected by SSL/TLS. This issue was addressed by the release of iOS 7.0.6.
Battery Indicator stuck until restartiPhone 4S users report experiencing problems with the battery indicator; the indicator will freeze at the same value until the iPhone is restarted again.
Touch ID In iOS 7.1, Touch ID was not functioning on the iPhone 5S. The problem cannot be resolved by turning Touch ID on and off in the "Fingerprint and Passcode" menu, restarting, resetting, or restoring the device using iTunes. This problem was similar to the iOS 8.0.1 release, which crippled iPhone 6 and iPhone 6 Plus of both cellular and Touch ID. This was fixed in iOS 7.1.1.
HealthKit Shortly after the release of iOS 8, Apple released a statement pointing out that a bug had been found in the operating system which prevented HealthKit-compatible apps from being released alongside iOS 8. Apps already released that included Healthkit functionality were withdrawn from the App Store. iOS 8.0.1/8.0.2 included a fix for this issue.
CellulariPhone 6 and iPhone 6 Plus users who updated to iOS 8.0.1 wirelessly had cellular service of their iPhones disabled due to a software issue. Over-the-Air downloads of iOS 8.0.1 were stopped within an hour of the release of the software, but many early adopters had been affected. This issue was fixed with the release of iOS 8.0.2 a day later.
Touch ID iPhone 6 and iPhone 6 Plus users who updated to iOS 8.0.1 wirelessly had Touch ID disabled due to a software error. Over-the-Air downloads of iOS 8.0.1 were stopped within an hour of the release of the software, but many early adopters had been affected. This issue was fixed with the release of iOS 8.0.2 a day later.
Users who updated phones with Touch ID enabled to iOS 8.3 found out that they could not use Touch ID to make App Store purchases. A workaround has been devised by users to repair this issue.
Performance Many users of older generation devices such as the iPhone 4s and the iPad 2 reported performance issues with iOS 8. Apple has since released iOS 8.1.1 in attempt to fix the problem.
Keyboard Several issues with the new Keyboard API in iOS 8 were reported, including problems with custom keyboards crashing or not appearing, or being replaced with the default keyboard. Apple has since released iOS 8.3 in attempt to fix the problem.
iMessage When a specific set of Arabic, Unicode, and English characters are sent through iMessage to an iOS device running iOS 8.0 or later, it causes the device to crash. This bug was discovered by a reddit user in May 2015. Apple has since released a software update (iOS 8.4) to fix this issue.
^Gibbs, Samuel (September 22, 2013). "Apple says it's working on fix for iOS 7 lockscreen bypass flaw". theguardian.com. Guardian News and Media. Archived from the original on September 22, 2013. Retrieved September 22, 2013. Embarrassing discovery comes within hours of release of new software and exploits Control Center feature to hack into photos, texts and Facebook content