Where can I manually download the latest version 16 of Website X5?

I updated to version 17 but it has glitches and I can't wait until they are fixed.  Therefore, I need to revert to the older v.16... but I need the very latest in order to open my project files.

Where is the link?

I specifically need this one:

12/10/2018 Objects NEW: AddToAny Sticky

• Add a bar with different buttons enabling the users to share the page on their social media.

Thanks.