What happens to my alert results when I change my alert search strategy in-between two delivering cycles?

If any alert search strategy is being changed in-between two result delivery cycles, it will deliver two kinds of results The following options are being considered to determine, which articles are being delivered from the "original" search strategy and which ones from the "revised" search strategy The overall recommendation is to edit any alert search strategies immediately after the last alert delivery, if it is expected to see alert results based on the "revised" strategy only.