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There was a sign error in part of the calculations for the variance returned by ‘KalmanSmooth()’. (PR#14738)
The ‘"source"’ attribute on functions created with ‘keep.source=TRUE’ has been replaced with a ‘"srcref"’ attribute. The ‘"srcref"’ attribute references an in-memory copy of the source file using the ‘"srcfilecopy"’ class or the new ‘"srcfilealias"’ class.
*NB:* This means that functions sourced with ‘keep.source = TRUE’ and saved (e.g., by ‘save()’ or ‘readRDS()’) in earlier versions of R will no longer show the original sources (including comments).