Under the hood
The internal isPasted marker on keypress events has been removed
What
Claude Code used to attach an isPasted marker to keypress events internally, and checked it in logic that handles mouse-wheel scrolling and repeated key presses. That marker has now been removed everywhere it was used.
Why
This is an internal cleanup with no described effect on how the tool behaves day to day, though it may adjust how pasted versus typed input is distinguished internally.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The finding does not say what, if anything, changes in observable behavior now that pasted input is no longer marked separately.