Hello!
We have released the 2.35 snapcraft snap to the stable channel, and now it’s time to make the Stable Release Update for the snapcraft deb to the archive of all the supported Ubuntu distros.
For people who wants to help testing, here are the instructions to enable the -proposed pocket: http://elopio.net/blog/test-sru/
Once you have the upgraded deb installed, the snapcraft tutorials in tutorials.ubuntu.com are a nice way to smoke test the release, and learn, and have fun 
This is the guide of testing specific for this release: https://gist.github.com/elopio/a749810edd9a80517b46ace63d45b166#file-snapcraft-tests-2-35-md
If you see anything weird after the update, please let us know by replying here.
pura vida.