Just got it!

How do I update the TinyBooter? Does it need updating? I successfully updated tinyCLR

Check support area. It has all you need to check and update the board if needed.

When asking questions about updating a board, etc., it helps to include the board you’re working with.

From your other post, it looks like Cerbuino Bee, and the updating instructions for the bootloader are at:

https://www.ghielectronics.com/docs/46/fez-cerb-family-developers-guide#3253

You can use FEZ Config to test what the current TinyBooter and TinyCLR versions are, and if they’re the same as what’s installed, you should be fine without updating.