This weekend I've tagged the first pre-releases of the 1.x branch! I strongly encourage everyone to test their applications and extensions against this beta and provide any feedback. (Helpful information can be found in the upgrading guide.) Unless there are any major issues we'll plan on releasing a stable 1.0.0 version in the coming weeks!
And if you'd like to support this project, please consider sponsoring development via Patreon: https://www.patreon.com/colinodell