Update 4: 2021-10-16 16:33 UTC: Today's window is done. Actual user-visible downtime was negligible. Thanks for bearing with us! This round of maintenance is done.

Update 3: 2021-10-16 15:00 UTC: Today's window is starting.

Update 2: 2021-10-15 15:46 UTC: SEDE is back. Actual downtime was about 30 minutes. We're done. Thank you for your patience.

Update: 2021-10-15 15:11 UTC: This is starting now.

Due to ongoing planned network upgrades, data.stackexchange.com (a.k.a. SEDE or the Stack Exchange Data Explorer) may be unavailable for up to 2 hours on Friday and Saturday this week. Likely considerably less.

We appreciate your patience.

  • 1
    Is this the last time there's maintanence? Commented Oct 14, 2021 at 22:03
  • 15
    While we always strive to minimize the maintenance windows that have customer-visible outages or reductions in service, we can not promise that anything we do will be "the last time". We are in the process of 4 major hardware upgrade projects and this is number 3. The fourth (and the biggest one) will be announced soon.
    – Tom Limoncelli StaffMod
    Commented Oct 14, 2021 at 22:10
  • 6
    Planned maintenance is good. Sudden unplanned maintenance is not. One precludes the other Commented Oct 15, 2021 at 11:32
  • 3
    Again not announced on stackstatus twitter/blog? Commented Oct 16, 2021 at 4:07
  • @user10354138 it is not an outage that impacts all services in the network. Does this really warrant off-site communication beyond what is offered by featuring this question so those that do use SEDE frequently gets a heads-up? Who on Twitter is interested in knowing SEDE is not available?
    – rene
    Commented Oct 16, 2021 at 13:28
  • 1
    @rene Given at the time I was greeted with basically a blank page with large text saying SE is down for maintenance and redirected me to the stackstatus blog / twitter for more information when it is going to come back up, it is rather annoying there wasn't any information at all. Commented Oct 16, 2021 at 13:33
  • @user10354138 yet you found a question that explains what is going on.
    – rene
    Commented Oct 16, 2021 at 13:35
  • 1
    @rene It was more than an hour after the site is back online that I found this and posted my first comment. Rather useless isn't it? Commented Oct 16, 2021 at 13:36
  • @user10354138 maybe the maintenance page should include a link to Meta so everyone landing on that page has three options to get informed, for redundancy.
    – rene
    Commented Oct 16, 2021 at 13:56
  • 3
    @rene Yeah, we forgot to post to twitter/tumblr. My bad.
    – Tom Limoncelli StaffMod
    Commented Oct 16, 2021 at 14:39


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