Thanks for the response. I couldn't find any reference in the help file regarding spacing after a command.
I'll just have to do some experimenting with different options to see what option works best for my brain - specific glossary for each year, current one with commands, or just adding a space manually when needed.
If I persist with my current dates glossary with commands I'll need two sets of entries, with and without a space, as dates are just as likely to be at the end of a sentence or before other punctuation (comma, colon, semicolon, etc).
Hope this info helps anyone else who comes across the same issue when transferring from an older version of IT.