Good thing there's an obvious place to know when all these starts and stops happen and we don't have to stop building our own projects and shepherding users in communities and explaining whats going on during outages and such long enough to also watch an off chain location for git commits just in case they randomly happen now and then :D
But still even if we DID notice random things in off chain places, 14 days is not 30. Just saying, from your link above:
Update testnet HF time
testnet-09102018
@mvandeberg
mvandeberg committed 14 days ago
There was also the initial announcement:
https://steemit.com/hardfork20/@steemitdev/hardfork-20-testnet-details
Related github:
https://github.com/steemit/steem/commit/3a0f9448bb1e59af7835e444c80ea094aab627c2
So that one activated HF20 on
2018-08-27 17:00:00 UTC. I remember there being two. I guess there were three. I probably got that mixed up because of the halt.If even you got mixed up.... ;)