# iOS 26.6 now available – why you should update your iPhone immediately > Source: > Published: 2026-07-28 12:37:09+00:00 # iOS 26.6 now available – why you should update your iPhone immediately [Apple](/topic/apple)has rolled out new[software](/topic/software)updates, including iOS 26.6, for its primary products, advising users to install them promptly despite the changes not being immediately apparent.- A key function of iOS 26.6 is to prepare devices for the upcoming iOS 27 by initiating the indexing of all on-device content, which is crucial for the new Siri AI to effectively utilise this data. - The update incorporates substantial security enhancements, rectifying 75 vulnerabilities identified in [iPhones](/topic/iphones)and over 150 in Mac devices, which could otherwise allow hackers access to sensitive data. - Apple has notably credited various artificial intelligence tools, including [Anthropic](/topic/anthropic)’s[Claude](/topic/claude)and[OpenAI](/topic/openai)’s Codex Security, for their role in discovering and resolving these potentially critical software bugs. - Additionally, the new software introduces a feature that will inform users when they have reached the maximum limit for blocked numbers, a cap that previously existed without any user notification.