[institute] Upgrading to 6.5

Hey everyone!

Initially, I'd put the 6.5 upgrade on the back-burner because of the recurrent inspIRCd issues. I didn't want to cause any more service disruptions too soon after the v2->v3 move.

I'm going to be upgrading a test environment, smoothing out the kinks, then upgrading the production tilde.institute server. My plan is to do the production upgrade on Monday, 11 June, 2019, around 22:00 US Eastern Time, which is 2:00 AM UTC, Tuesday, 12 June, 2019.

If anything changes, I'll send out another email. I'll also send out at least one reminder email in between now and Monday, and a warning email about an hour before I begin the upgrade.

Let me know if you have any questions!

~ahriman