Last year at WWDC, Apple unveiled its latest “Rapid Security Response” updates for iPhones, iPads, and Macs.

Yesterday, the first publicly released patch for the system began to roll out.

While there were initial issues with the update reporting that every iPhone was “offline,” the new patch has now been successfully installed on our devices without any problems.

According to a recently published support document by the company, RSR patches are small updates that focus on fixing security issues between major software updates for the iPhone, iPad, and Mac platforms.

In some cases, these out-of-band security updates may also be utilized to address vulnerabilities that are being actively exploited in attacks.

The purpose of the Rapid Security Response system is to simplify the process of adding security fixes in between major system updates.

These updates can be installed on certain devices without requiring a reboot, and users have the option to decline to receive them or to uninstall them if any problems arise.

“They may also be used to mitigate some security issues more quickly, such as issues that might have been exploited or reported to exist ‘in the wild’.”

However, the rollout wasn’t buttery smooth for all Apple users, as several users reported issues with installing the RSR update on their iPhones.

According to BleepingComputer, the installation failure was indicated by “Unable to Verify Security Response” errors.

The errors claim that the update failed verification because the device is no longer connected to the internet, despite confirmation from BleepingComputer that the affected devices are indeed connected.

This suggests that a server-side bug is the likely cause of the installation issues.

Later in the day, the installation process began functioning smoothly, completing the update in approximately 30 seconds for all compatible devices.

Apple has not yet updated its security page for iOS or other platforms to provide details about the issues that the patch resolves.

As per Apple’s support page, after installation, the patch adds a letter to the version number, indicating that the update has been successfully installed.