証拠は残していかんとな

https://openwrt.org/releases/18.06/start

Roadmap
Below is a preliminary schedule for the evolution of the 18.06 release. The dates are subject to change.

24 June 2018 - Release v18.06.0-rc1 test images available
13 July 2018 - Release v18.06.0-rc2 test images available
20 July 2018 - Final release binaries available for v18.06.0
August 2018 - Start preparations for v18.06.1, the first service release for the 18.06 series