Missing `since` annotation for `(!?)` operator

https://hackage.haskell.org/package/array-0.5.7.0/docs/Data-Array-IArray.html#v:-33--63- A lacking "since" suggest that this operator is also available in older versions of array, but for GHC 9.4 and below I get this error:

Error:     Not in scope: ‘Array.!?’
    Perhaps you meant one of these:
      ‘Array.!’ (imported from Data.Array.IArray),
      ‘Array.//’ (imported from Data.Array.IArray)
    Module ‘Data.Array.IArray’ does not export ‘!?’.

Seems only available since array-0.5.6.0.