We aren’t absolutely certain how we are going to step down support for 1.8 Legacy. It’s going to depend a lot on the number of users continuing to use it. At some point in the future we will stop providing updates, but our technical support team will continue to provide assistance on an as-needed basis. We’re leaving these dates somewhat fluid as we couldn’t predict in advance what percentage of users would stay on 1.8 Legacy vs move ahead with 2.0.
1.8 “stable” is now essentially at its end of life and has been replaced by 1.8 Legacy. While it’s still supported it will no longer receive updates and when contacting support the first thing we will request users do is move to 1.8 Legacy.