I just got an email saying there is a new version out with bugfixes, etc. When I went to the downloads page, it was still the same version I already had from a month ago. Have I missed something?
In case of doubt you can always check https://wiki.chordata.cc/wiki/Releases
When a software release is anounced it is normally accompanied by the version number and changelog.
Check your notochord version with
If it matches the one you received on the email then you are good to go.