'Developers can update Claude’s instructions mid-task without breaking the prompt cache or routing the update through a user turn' wtf? how?…

"Developers can update Claude’s instructions mid-task without breaking the prompt cache or routing the update through a user turn" wtf? how?? Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors. Available today at the same price.

Source: Swyx (X) | 2026-05-28