iOS 18 Potentially 'Biggest' Software Update in iPhone's History - MacRumors
Skip to Content

iOS 18 Potentially 'Biggest' Software Update in iPhone's History

Apple has big plans for iOS 18, according to Bloomberg's Mark Gurman.

iOS 18 Mock Feature Baubles
In the subscriber-only Q&A section of his Power On newsletter today, Gurman said iOS 18 has the potential to be the "biggest" software update in the iPhone's history.

"I'm told that the new operating system is seen within the company as one of the biggest iOS updates — if not the biggest — in the company's history," he wrote.

Gurman said he plans to share more details about specific iOS 18 features and changes that are planned in the future, but we already know about two new features that are likely to be included in the update, as outlined below.

iOS 18 will be released in September, and the first beta for developers will come out during Apple's annual developers conference WWDC in June.

RCS Support

General Apps Messages
In November 2023, Apple announced that it would support the cross-platform messaging standard RCS in the Messages app on the iPhone starting "later" in 2024, so it will likely be an iOS 18 feature based on that timeframe.

RCS support should result in the following improvements to the default messaging experience between iPhones and Android devices:

  • Higher-resolution photos and videos
  • Audio messages
  • Typing indicators
  • Read receipts
  • Wi-Fi messaging between iPhones and Android devices
  • Improved group chats, including the ability for iPhone users to leave a conversation that includes Android users
  • Improved encryption compared to SMS

These modern features are already available for iPhone-to-iPhone conversations with blue bubbles, via iMessage, and many of the features are also available in third-party messaging apps, such as WhatsApp and Telegram. RCS support on the iPhone will extend the features to green bubbles in the Messages app.

Smarter Siri

iOS 18 Mock Siri Feature Baubles
Gurman expects iOS 18 to feature generative AI technology that "should improve how both Siri and the Messages app can field questions and auto-complete sentences." He said Apple has also explored generative AI features for other apps across its platforms, including Apple Music, Pages, Keynote, and Xcode.

The Information reported that Apple plans to incorporate large language models into Siri to let users automate complex tasks, a feature that would involve deeper integration with the Shortcuts app. The report said this feature is expected to be released in an iPhone software update coming in 2024, which would likely be iOS 18.

Generative AI surged in popularity in 2022 when OpenAI released ChatGPT, a chatbot that can respond to questions and other prompts. Google and Microsoft released similar chatbots last year, as more companies race into the space. The chatbots are trained on large language models, allowing them to respond like a human.

Related Forums: iOS 18, iPadOS 18

Popular Stories

iphone duo feature

Mark Gurman: Apple Made 'Major Mistake' With iPhone Duo Pre-Orders

Sunday October 18, 2026 7:33 am PDT by
Despite knowing that the iPhone Duo would face "severe supply constraints" due to manufacturing challenges, Apple chose to begin iPhone Duo pre-orders on Friday instead of waiting until it had more inventory ready, according to Bloomberg's Mark Gurman. In his Power On newsletter today, he called this decision a "major mistake." "Let me cut to the chase: Apple made a major mistake here," he...
Black Apple Event Logo

Apple Now Inviting Media to October 28 'Launch Experience'

Thursday October 15, 2026 4:13 am PDT by
Apple has begun inviting selected members of the media to a product launch experience in Los Angeles on Wednesday, October 28, according to Bloomberg's Mark Gurman. In a post on X, Gurman described the gathering as an "all-day product launch experience" for touchscreen MacBooks, a new iPad mini, and Macs equipped with M6 chips. Gurman previously reported that Apple would introduce the...
MacBook Pro Dynamic Island multicolor

Apple Reportedly Announcing New MacBook Pro With OLED Touchscreen on Wednesday

Sunday October 25, 2026 7:30 am PDT by
Apple plans to unveil 14-inch and 16-inch MacBook Pro models with touch-enabled OLED displays on Wednesday, October 28, according to Bloomberg's Mark Gurman. Those invited to Apple's "Pro and tell" experience in Los Angeles at 10 a.m. Pacific Time on that day will likely receive hands-on time with the laptops after they are announced in a press release. In his Power On newsletter today,...

Top Rated Comments

Legendary--- Avatar
36 months ago
I’ll believe when I see it
Score: 116 Votes (Like | Disagree)
36 months ago
Doesn’t sound like much of an upgrade to me if those are the headlining features. How about fixing the keyboard first… when I try to edit my comment here and I tap in between words, half the time it inserts the text cursor and the other half it selects an entire word. So frustrating.
Score: 111 Votes (Like | Disagree)
abatabia Avatar
36 months ago
I’m already worried about the bugs.
Score: 87 Votes (Like | Disagree)
everybodylovesramen Avatar
36 months ago
please for the love of god take the camera shortcut off the lockscreen / or at very least let us disable it without having to root the phone.
Score: 71 Votes (Like | Disagree)
acblue94 Avatar
36 months ago
Breaking new innovative updates. More emojis.
Score: 54 Votes (Like | Disagree)
36 months ago
Yeah, sure. Let's be real... they literally been telling this every single year.
Score: 49 Votes (Like | Disagree)
Latest Stories
Apple Store Subscription Sign-Up Controversy Exposed
Apple Store Subscription Sign-Up Controversy Exposed
1 hour ago
Siri AI Rumored to Become 'More Like an Agent' as Early as Next Year
Siri AI Rumored to Become 'More Like an Agent' as Early as Next Year
11 hours ago
Apple Taking New Approach to Developing iOS 28 and macOS 28
Apple Taking New Approach to Developing iOS 28 and macOS 28
13 hours ago
Early Apple Black Friday Deals on Apple Watch, MacBook Air, and More
Early Apple Black Friday Deals on Apple Watch, MacBook Air, and More
1 day ago
'Backglow' Lets You Customize New MacBook Pro's Glowing Apple Logo
'Backglow' Lets You Customize New MacBook Pro's Glowing Apple Logo
1 day ago
Top Stories: Apple Product Launches, iOS 27.3 Beta, and More
Top Stories: Apple Product Launches, iOS 27.3 Beta, and More
2 days ago
More Fun iPhone Duo Apps: 30 New Picks to Try
More Fun iPhone Duo Apps: 30 New Picks to Try
2 days ago
Hands-On With Apple's New OLED Touchscreen MacBook Pro
Hands-On With Apple's New OLED Touchscreen MacBook Pro
2 days ago
Apple Store With All-New Design Opening Soon in Southern California
Apple Store With All-New Design Opening Soon in Southern California
2 days ago
Control the Glowing Apple Logo on Your New MacBook Pro
Control the Glowing Apple Logo on Your New MacBook Pro
2 days ago
Apple Shares New 'Apple Card: Apply and Use in Minutes' Ad
Apple Shares New 'Apple Card: Apply and Use in Minutes' Ad
2 days ago
Apple Says More Than 100,000 Apps Optimized for iPhone Duo, Here's What's Still Missing
Apple Says More Than 100,000 Apps Optimized for iPhone Duo, Here's What's Still Missing
3 days ago
Early Black Friday Deals Kickoff With Steep Discounts on Apple Watch Ultras and More
Early Black Friday Deals Kickoff With Steep Discounts on Apple Watch Ultras and More
3 days ago
The MacRumors Show: iOS 27.3 Looks Like a Huge Update
The MacRumors Show: iOS 27.3 Looks Like a Huge Update
3 days ago
Best Buy's Black Friday Event Begins With Sitewide Savings on Apple, TVs, More
Best Buy's Black Friday Event Begins With Sitewide Savings on Apple, TVs, More
3 days ago
Apple Releasing Yet Another Two New Products Next Week
Apple Releasing Yet Another Two New Products Next Week
3 days ago
MacBook Air Drops to Lowest Price in Months With Amazon's $250 Discount
MacBook Air Drops to Lowest Price in Months With Amazon's $250 Discount
3 days ago
Apple Rumored to Drop the iPhone's Action Button Next Year
Apple Rumored to Drop the iPhone's Action Button Next Year
3 days ago
Apple's Extended Return Policy Now in Effect for 2026 Holiday Season
Apple's Extended Return Policy Now in Effect for 2026 Holiday Season
3 days ago
Apple Music Classical Updated With New Icon and Refreshed Design
Apple Music Classical Updated With New Icon and Refreshed Design
3 days ago
OLED iPad Mini, M6 iMac, and New MacBook Pros Available From Today
OLED iPad Mini, M6 iMac, and New MacBook Pros Available From Today
3 days ago
Apple Surveys iPhone Duo Buyers About Crease and Camera
Apple Surveys iPhone Duo Buyers About Crease and Camera
3 days ago
Apple's First Touchscreen Mac is Now Arriving to Customers
Apple's First Touchscreen Mac is Now Arriving to Customers
3 days ago
Claude Gets Personal Finance Feature With Bank Account Linking
Claude Gets Personal Finance Feature With Bank Account Linking
3 days ago
Apple Arcade Adds Crossy Road Rush and NBA 2K27
Apple Arcade Adds Crossy Road Rush and NBA 2K27
3 days ago
Apple's New HomeView Smart Home Hub: Here's How Much RAM It Has
Apple's New HomeView Smart Home Hub: Here's How Much RAM It Has
3 days ago
iPad Mini vs. iPad Air Buyer's Guide: Now Just $50 Apart
iPad Mini vs. iPad Air Buyer's Guide: Now Just $50 Apart
3 days ago
First iOS 27.3 and macOS Golden Gate 27.3 Public Betas Now Available
First iOS 27.3 and macOS Golden Gate 27.3 Public Betas Now Available
3 days ago
Apple Announces a New Mac Sales Record
Apple Announces a New Mac Sales Record
3 days ago
Paid $200 for Logic Pro? Apple Says You Won't Get This New Feature
Paid $200 for Logic Pro? Apple Says You Won't Get This New Feature
3 days ago