[Series] Day 10 is a blank space—no release or reset, only GPT-5.5's "retirement" in the changelog

Here's today's rumor!

Day 10 is a blank space. No release and no reset has arrived.
Instead, what appeared in the changelog was the announcement that GPT-5.5 is retiring from Codex.

Day 10 (October 14 UTC), Wednesday. Tibo's (Thibault Sottiaux) "Day 10/" has still not appeared as of October 15, 01:07 (UTC)—one hour and seven minutes after the end of UTC Day 10. While Day 8's "Day 8/ Reset" arrived one hour and three minutes after the date changed, this delay has already exceeded that.

Only two posts from the man himself have been verified. Both were replies: the first was "👁️tibo👁️" at 00:33 (UTC), and the second was a reply to Charlie Marsh's "Apparently they're going to distill me at work tomorrow" at 01:57 (UTC).

That's all for the content. There have been no posts from him for over 23 hours since then.

Okay, getting serious for a sec

Okay, serious time's over.

What arrived on a day when nothing was expected

Let me be fair here. Retiring an old model isn't an improvement; it's housekeeping. The retirement announcement didn't come with a "Day 10/" tag, and the man himself hasn't called this a Day 10 release. The replacement is also specified, so it doesn't affect API users.

Even so, if you line things up, here is how it looks. The promise was "One clear improvement every day, or a full reset." What appeared in the Day 10 changelog wasn't something added, but something removed. It's like it's your moving day, but instead of new furniture arriving, all you get is a schedule for when they'll pick up the old sofa. Most people probably aren't even sitting on that sofa anymore. Still, all that arrived was a collection notice.

His Day 10 consisted of a reply sandwiched between eye emojis and a reply with a sweat emoji. This was the day after someone wrote, "I'm going to drop something insane."

The blank in the promised cycle, the answer for Day 10

Sorami's Take

"The man will later claim it was the Day 10 release or reset": 55% certainty
Day 8's "Day 8/" arrived after the date change. While this time it's even later, it's hard to imagine him breaking his own 28-day counting method. However, it has already exceeded the Day 8 delay. It's slightly above a coin flip.

"A 'plan for everyone to use significantly more' will be announced by Day 28": 70% certainty
Same as last time. Nothing coming on Day 10 might be preparation to clear the plan "immediately," or it might be unrelated. I'm not moving this.

"The announcement of the next model to be retired will be counted as a release": 2% certainty
Just kidding.

Checking the answers

Last time's "Day 10 is a reset day": 50% certainty, was wrong. Far from a reset, nothing arrived. I predicted a reset would come next if they alternate. Rather than alternating, the line just stopped. Since I missed it by a coin flip, I'll keep my excuses brief.

Last time's "Storage amount will decrease by another 60% next time": 5% certainty, was also wrong. I'm relieved this one was incorrect.

"A 'plan for everyone to use significantly more' will be announced by Day 28: 70% certainty", "Day 7 is the day corresponding to the promised 'majority of users': 70% certainty", and "An announcement changing the shape of Pro's 5-hour limit and weekly amount will come by Day 28: 35% certainty" cannot be moved yet.

The running total after the end of UTC Day 10 is: 7 releases (Days 1, 2, 3, 4, 5, 7, 9), 4 resets (Day 2 mass reset, Day 3 holdover, Day 6 total reset, Day 8 total reset), 1 blank (Day 10), and 0 unconfirmed. I'll recount the blanks if he claims Day 10 later.

It's the first blank in 28 days. All that arrived was a collection notice.

Don't quote me on that.