Just before doing the SD 8 (8a20) update the tool bar items for the script window were set to “Icon & text.”
When SD 8 (8a20) first came up after the update the tool bar items were just text objects instead of Icon & text. Before doing anything else I quit SD 8 (8a20), relaunched, and the tool bar items where back to “Icon & text.”
Quitting & restarting SD8 keeps coming up with “Icon & text.” However if the update does this for a user it could be confusing. They might think the new version only has text instead of icons.