Adobe recently updated Captivate 2019 from 11.0 to 11.5. While much of the look and feel between versions 11 and 11.5 remain unchanged, there are some feature enhancements that I'll be addressing in future posts (if you scroll down you'll see a recent post on the new Assets).
Legacy versions of Captivate upgrade to version 11.5 nearly seamlessly. I say "nearly" because there are a few dialog boxes you'll come across during the upgrade process.
First, you'll likely get a message about missing fonts (even if you weren't using the missing fonts in your project... it seems those pesky missing fonts were being using behind your back by default styles, etc.)
Clicking the Replace Fonts button has not altered the look of any of my slide objects in any projects I've upgraded so far (nor has replacing the fonts messed about this my object styles). Nevertheless, you should go from slide to slide and ensure all is well with your upgraded projects.
Upon saving your upgraded project for the first time, you'll be warned that saving the project as the newer version means you will no longer be able to open that project in an older version of Captivate. For that reason, it's a good idea to make a backup of your legacy projects prior to upgrading.
And of course, if you need Captivate training, we've got you covered with a huge selection of instructor-led courses.