Footnote numbering and quotations
ID's automatic footnote numbering is great . . . except when it isn't. If the user is quoting material and the quoted material itself has footnotes, those footnotes should retain the numbers from the quotation.
We all know how ID does footnote numbers. There is a footnote counter, and when the user adds a footnote, the counter increments by one; if the user eliminates a footnote, the counter decrements. When either of these happens, ID also renumbers the footnotes following the change appropriately.

So far, so good, until the user includes a quotation that has a footnote. Then ID assigns the in-quotation footnote the next sequential footnote number, increments the counter, and changes the numbers of succeeding footnotes. That's not so good.

There is a fix that Adobe could include. Create a way to add a "special" footnote, special in this way: the user has to supply a footnote number (or other designation), and adding the special footnote does *not* increment the counter. In programming terms, this is not a hard fix. I am no fan of Microsoft generally, but even it was able to figure this out and include it as a feature in Word.

With ID's current system, as soon as an in-quotation comes into the document, the user has to change all subsequent footnote numbers by hand. It can be done, but it entails making the automatically assigned number invisible and inserting the new number before it. (You can't delete the automatically assigned number, because then the footnote disappears.) The footnote itself (not the footnote call) will have the automatically assigned number, but the user can substitute the proper number without damaging the footnote reference. It is, shall we say, a bit cumbersome.

Simple problem, easy fix, much more usable ID.

Someone was able to do it

InDesign Extension: Auto-Update Table of Contents
https://youtu.be/-RUviS-pezY

The Preflight Panel would be a great place for Adobe to include a "TOC needs update" notification.

A button to update the TOC from anywhere in the document would be useful - as well as something to highlight it needs updating.

This would be a great feature, have definitely exported a document and sent to a client only to realize I forgot to update the table of contents on that last draft... ouch. Remembering to update things is something computer software is much better at than humans!

An option in the Preflight panel to show not-updated TOC should be great

I agree that an option is needed.
I'm using conditional text and must update TOC each time I need to output a set.

I agree with Lori, this should be a check-box option AND/OR the pre-flight on export can warn when TOC needs updating.

I would prefer this as an option. Many of my documents require tweaks, and though it's aggravating to have to remember the TOC, it would be even more aggravating (read, frustration to the point of tears) if those tweaks were impossible because of an automatic TOC update.
My tweaks are mostly minor, because I haven't figured out what's causing them. For example One, out of 50 items constantly bolds, even though it uses identical styles. TOC tweaks may occasionally be major, I don't like where a page breaks and want to adjust the text object's heights, or choose to put in a page break instead.
Thanks for letting me add my two cents. :)