In resonse to my question sent to MyCanvas, I received the answer below:
A recent question that popped up was related to the demise of the Flash player at the end of this year. I’ve not used your site, but am interested what will happen to any posted (published) family trees that people put on your site.
1. Will the trees be lost?
2. Have you got an alternate technology to keep those trees alive?
3. Are you going to continue to help people publish their trees through your site?"
The Answer I received:
"Hi Fred, Thank you for contacting MyCanvas Our program does use Adobe Flash and Adobe Flash is being dissolved. None of the Browsers will support it and it is rendering our program inoperable. We will be introducing a new version of our program that will begin on October 15 and the current Program will run until.
November 1. Three will be a two week overlap so that customers will be able to copy and drag their photos from the current site to the new site. This change will not affect your Ancestry Trees or account With our new version we will have a link to Ancestry to use your trees for creating Family History Books and Family Tree Posters. Unfortunately the projects on the current version will not be able to be access after November 1st. We will be making some announcements of discounts and details about the projects soon. Please let me know if you have questions I will be happy to help you. Thank you."
Hope that helps. Contacting MyCanvas is the best way to handle your questions.
Fred Kolbrener (not affiliated with MyCanvas)