The 2019 Halloween release from The Glenrothes distillery, matured in both sherry and bourbon casks then transferred and matured further in casks which previously held peated whisky.
The 2019 release has a rather nifty feature within the bottle, with Near Field Communication (NFC) technology embedded to each bottle. To activate the NFC content, you just have to hold a compatible device against the number 13 and wait for the URL prompt.