A tutorial can lose most of its usefulness in a year while an explainer on the same subject stays current for a decade. The difference is what the two videos depend on.
A tutorial teaches through visual correspondence
Instructional video works because the viewer matches what is on screen to what is on their own screen and follows along. That correspondence is the whole mechanism.
When a menu moves, a button is renamed or a panel is redesigned, the match breaks. The underlying method may be unchanged and the video is still unusable.
Concept videos survive because they depend on ideas rather than on pixel positions, and ideas are not revised on a release schedule.
Software release cadence sets the decay rate
Applications on continuous release change interface details several times a year, so tutorials covering them decay quickly and unpredictably.
Tools with slower, versioned releases give a tutorial a stable period that lasts until the next major version, which is why version numbers appear so often in these titles.
Creators covering fast-moving software are effectively on a treadmill, since maintaining the existing catalogue competes directly with producing anything new.
The audience arrives through search, which hides the decay
Tutorial traffic comes largely from people searching for a specific problem, and search keeps sending them to the highest-authority result even after it stops working.
Views therefore hold up while usefulness collapses, and the creator sees healthy numbers alongside comments reporting that nothing matches.
Watch-through data reveals it earlier than view counts do, because viewers who cannot follow along leave at the exact point the interface diverges.
Structure decides how expensive a fix is
A tutorial built as one continuous take must be re-recorded entirely when a single step changes, because there is no seam to cut on.
The same content shot as discrete, separately captured steps allows one segment to be replaced while the rest of the edit survives.
Creators who maintain large instructional catalogues plan for this from the start, keeping project files, scripts and captured assets specifically so partial revision stays possible.
Retiring a tutorial is a real decision
An out-of-date tutorial that still ranks does active harm, sending people through steps that no longer exist and attaching that frustration to the channel.
The options are to re-record, to leave it with a clear statement of which version it covers, or to remove it and lose the accumulated search position.
Most creators underestimate the third cost, which is why abandoned catalogues stay online long after they have stopped teaching anyone anything.