Apple has released iOS 26.1 to developers. It includes a new background security update tool and how AI will be handled. This will be the first major update to iOS 26.
New Background Security update mechanism
Apple introduced a new tool called Rapid Security Response as part of iOS 16.2. The idea was that Apple could release important security updates without having to wait for a significant release. However, Apple has only used Rapid Security Response once.
Apple is having a second try at implementing a way of issuing important security updates without a major system update. A team at Macworld discovered Background Security.
The report says security updates will be installed automatically. This is in contrast with the Rapid Security Response tool that required users to install updates via the Settings app.
Once the new feature makes it to a public release, users will be able to choose whether to enable the Background Security updates feature.
Model Context Protocol for access to AI data
The Model Context Protocol (MCP) was initially developed by Anthropic. MCP is a tool that enables AI tools to interact with apps in a standardised way. Without MCP, developers that want to use data from Apple’s apps would need to create bespoke connectors for each app. MCP enables those interactions to occur without the need to create those connectors.
MCP will allow AI developers to create apps that work more directly and efficiently with other apps.
Here’s what Anthropic says:
The Model Context Protocol is an open standard that enables developers to build secure, two-way connections between their data sources and AI-powered tools. The architecture is straightforward: developers can either expose their data through MCP servers or build AI applications (MCP clients) that connect to these servers.
Anthropic introduced MCP almost a year ago. Since then, a number of tech companies have adopted it. Apple is the latest big tech company to start using MCP.

Anthony is the founder of Australian Apple News. He is a long-time Apple user and former editor of Australian Macworld. He has contributed to many technology magazines and newspapers as well as appearing regularly on radio and occasionally on TV.