I recently got the information that Vue 2.7 is the last 2.x release https://blog.vuejs.org/posts/vue-2-7-naruto.html which will backport some Vue 3 features. The support for Vue 2 will end with 2023.
Do you plan on updating to 2.7. soon? This will be much obliged cause I am able to use some Vue 3 Features already and reduce any workload for updating my components if you switch to Vue 3 any time.