The update can be downloaded on compatible iPhones starting from the iPhone 6s. Those who haven't been notified about the update can manually check by going to Settings, then General and Software Update.
iOS 14.1 introduces a number of bug fixes. It addresses a major problem that caused some emails to be sent from the wrong alias, fixes an issue that could cause widgets and icons to show up in the wrong size, the company said in a release note.
The update also adds support for 10-bit HDR video playback and editing in Photos on the iPhone 8 and later, and improves compatibility with Ubiquiti wireless access points.
In addition to 10-bit HDR support, iOS 14.1 also addresses several issues where the Apple Watch case material was displayed incorrectly in the Apple Watch app, fixes an issue that could prevent zeros from appearing in calculator and more. The iPhone 12 and iPhone 12 Pro are expected to ship running iOS 14.1, or at least pop up an update notification for it as soon as you set them up.
Here's how to update Apple iPhone to iOS 14.1:
Update your device wirelessly
Step 1: Plug your device into power and connect to the Internet with Wi-Fi.
Step 2: Go to Settings > General, then tap Software Update.
Step 3: Tap Download and Install.
Step 4: To update now, tap Install. Or you can tap Later and choose Install Tonight or Remind Me Later. If you tap Install Tonight, just plug your device into power before you go to sleep. Your device will update automatically overnight.
Update your device using your computer:
Step 1: On a Mac with macOS Catalina 10.15, open Finder. On a Mac with macOS Mojave 10.14 or earlier, or on a PC, open iTunes.
Step 2: Connect your device to your computer.
Step 3: Locate your device on your computer.
Step 4: Click General or Settings, then click Check for Update.
Step 5: Click Download and Update.
(Source: Apple Support)