When a fact changes, the pieces that used it are reviewed

A deck, a document, a web page or a post is made from facts in your Foundation. When one of those facts changes after the piece was signed off or published, Gyrium puts the piece up for review. The sign-off stays where it is. A person decides whether the piece still holds.

A price, a figure or a claim changes, and that claim sits in a web page, a deck, a proposal and three posts. Until now nothing told anyone. Now the change itself says how far it reaches, and the people who answer for those pieces hear about it once, in their inbox.

Within a minute of a change, Gyrium looks for every piece that went out (signed off or published) and used the fact. Drafts are left out: they are checked when someone opens them. A piece signed off after the change was approved with the new value, so it is left out too.

What counts as a change: a new value, a fact replaced by another, a fact withdrawn or brought back, and a source that was withdrawn or replaced by a newer one. Correcting a source's title does not count.

Each piece has at most one open review. More changes join it, so ten edits to a product sheet make one review per piece, listing what each fact said when the piece was signed off and what it says now.

A fact that is put back to what it said when the piece was signed off, and stands again, leaves the review. When no fact is left to decide, the review closes on its own as still valid, and the piece says so. A change made and undone before Gyrium looked opens nothing. A withdrawn or replaced source is always left to a person.

A fact can also run out. Set Holds until on it (an offer that ends, a price for one year), and when that day has passed Gyrium reminds you: the pieces that used it are listed for a review, the same way as for a change, and the fact is listed with its date at the top of Sources. The fact itself is not touched. It stays in use until someone gives it a new date, corrects it or archives it. Nothing is blocked: publishing a piece whose only reminder is a date that passed asks nothing.

Check by works the same way, more quietly. When the day comes, the fact is listed under Due for a check on Sources and its owner (or the admins) gets a message that morning. Nothing goes to the pieces: the fact has not changed, it is only time to look. Choose Still correct when it holds; Gyrium records who checked and sets the next check the same distance ahead as before (asked for six months ahead, checked: the next check is six months on). Or correct the fact where it lives. When a product or service is set inactive, its facts are put under Due for a check too.

A whole source can have a date of its own: a price list for 2026, a brochure for this season. Set Holds until on the source, and when that day has passed, each of its facts is put under Due for a check, with the source named beside it. Its facts do not inherit the date and stay in use; nothing goes to the pieces, and the source stays where it is. Check each fact, or bring the new edition with Update this source.

A customer's agreement to be shown can end too. When it passes its end date, every piece that went out showing that customer (their logo on a wall, their logo under a quote, a quote from them) gets the review line Agreement ended, and the working copies lose the logo. It asks nothing at publishing, and recording the renewed agreement on the customer takes the line off.

A page can disappear. Gyrium reads the website pages you added for the whole organisation again once a week. When a page answers that it no longer exists on two weekly checks in a row, the source says The page is gone on Sources, the facts that came from that page are put under Due for a check, and the pieces that used them get a review line, Page gone. Nothing is withdrawn: the facts stay in use, and publishing a piece whose only reminders are a gone page or a passed date asks nothing. A page that is slow, blocked or down for a while does not count. When the page answers again, the mark goes away by itself; the review line stays until someone decides.

A piece can also simply get old. A workspace admin can set a Periodic review in Settings: every 6, 12 or 24 months, or off, which is how a workspace starts. With it on, every piece that was signed off or published and that nobody has looked at for that long shows Review needed with Periodic review, even though no fact it used has changed, and the person who signed it and its owner are told. Look at it and choose Still valid, Outdated or Taken down, or edit it and sign it off again. Nothing is blocked: publishing asks nothing about a periodic review, and the sign-off stands until someone decides. The time is counted from the last sign-off, publication or review someone decided.

Who is reminded: the fact's owner, or the workspace's admins when it has none, gets a message in their inbox 14 days before the date and again once it has passed. The dashboard says how many facts have passed their date or reach it soon, with Open Sources. A piece that is not signed off yet says when it uses a fact that has passed its date ("Uses a fact that held until …"), so you can check it before it goes out.

The people responsible are told once the changes have been still for ten minutes, so a run of edits makes one message. They are the person who signed the piece off and its owner, when they work in that workspace. Someone who signed through a review link from outside is not told. A person responsible for several pieces gets one message that counts them.

1. Correct a fact as usual, or archive or restore it. When the change reaches pieces that went out, a message says how many, for example "This change affects 3 signed-off or published pieces. Their sign-offs stand. The people responsible will be asked to review them."
2. If you signed one of those pieces off, or you own it, a message arrives in your inbox on the dashboard about ten minutes after the last change: "A piece needs a review", or how many pieces do.
3. The message opens Expressions, where Review needed lists every piece waiting. Choose Open on one.
4. Beside its sign-off the piece says Review needed, with each fact that changed: what it said when the piece was signed off, what it says now, and the slides, sections or blocks that used it. Under each fact, Gyrium quotes where a part still says the words the change took out, with those words marked, or says that a part already has the new wording. When a part says neither, read it: it may put the claim in other words or in another language.
5. For help judging it, choose Suggest a reading. Gyrium reads each change beside the parts that used it and marks it, as a Suggestion, as A change of wording, A change of substance or May contradict the piece, with one sentence of why. It costs one credit per review, as the button says, and decides nothing.
6. Decide. Still valid when the piece holds as it is (an old price quoted on purpose, for example). Outdated when it no longer holds. Taken down once the page is no longer published. A short note for the record is optional.
7. If it needs new words, edit it and sign it off again: the review closes as revised.

Publishing while a review is open: you can still publish or update a piece with an open review. Gyrium asks first, and Publish anyway records that you saw the change. A piece marked Outdated goes live unchanged only through Override and publish, and a piece marked Taken down comes back only through Reinstate and publish; both are for someone who may sign off, and both are recorded with their name. Edit the piece and sign it off again, and it publishes as usual.

Dates on a fact: on Sources, open a source, choose Edit on one of its facts, and set Holds until (the last day it holds) and, if you like, Check by (when someone should look at it again). Choose Save dates. Facts whose date has passed, and those whose date comes in the next 14 days, are listed at the top of Sources; Change dates there gives one a new date or clears it.

A date on a whole source: on Sources, open the source, set Holds until under Where it lives, and choose Save date. The list of sources shows the date beside it. A day that has already passed puts its facts under Due for a check straight away.

Every signed-off piece also says how far its facts can be traced: every part, some of them, or none. Gyrium can only catch a change to a fact a part says it used.

A workspace setting that makes an open review a hard stop for publishing waits for a customer who asks for it. Email notices wait for their own consent in Settings. Copies already downloaded (PDF, PowerPoint, exported HTML) are never recalled. A suggestion reads only the facts and the parts Gyrium knows about; it can miss an implication or flag a faithful paraphrase, which is why it never decides.