Hello,
For years I've used Split String.vi and Join String.vi from the Hiddem Gems palette. I see that LV 2019 has the new "Delimited String to 1D String Array.vi" and "1D String Array to Delimited String.vi".
I haven't installed LV 2019 yet; does anyone know whether the new official VIs are just wrappers for the Hidden Gems VIs? Is it OK to keep using the Hidden Gems VIs going forward?
The official VIs are different implementations. I imagine they're faster, since their implementation is simpler (they just wrap Spreadsheet String to Array and Array to Spreadsheet String). Also the new VIs have the standard connector pane and official icons.
You shouldn't have any issue continuing to use the hidden gems if you prefer those.