How to maintain a knowledge base
Building a knowledge base is the easy part, but keeping it useful is where most teams fall short.
A neglected knowledge base doesn't just top being helpful as information grows stale, it actively hinders and causes friction for the reader - be it a customer reading product documentation or newly hired employee who is reading through an internal knowledge base. When a knowledge base is not actively maintained, and documents grow out of date by months, of not years, it erodes trust in the system as a whole and makes people stop using it altogether.
In this guide, we cover the best practices in keeping a knowledge base up-to-date, and how maintaining a knowledge base does not need to be a burden but can be included as a natural step in existing workflows. This guide strives to be agnostic towards knowledge base type and is applicable to both internal and external knowledge bases.
New to knowledge bases? Read our general knowledge base article here.
Why knowledge bases fall apart
Before getting into solutions, it's worth understanding why even knowledge bases with well intentions tend to decay over time.
The most common culprit is the absence of ownership when setting up the knowledge base. When a knowledge base is considered "everyone's responsibility," it often becomes no one's, as there is no direct ownership of categories and documents. When nobody feels personally accountable to the knowledge base, updates get deferred and less frequent - and this even furthers the distance people feel towards updating the knowledge base.
The second culprit is treating documentation as a separate activity from actual work. If updating the knowledge base feels like extra admin work, like something to do when things slow down, it never becomes a real habit.
Now that we've discussed some of the culprits of stale knowledge bases, let's get how these problems can be solved.
Best practices for maintaining a knowledge base
Establish clear ownership
As previously stated, one of the biggest culprits of stale knowledge bases is lack of responsibility and ownership. To combat this, every section of a knowledge base should have a named owner - someone who is accountable for keeping it accurate and up to date. This doesn't mean they should write every word themselves, but that they're responsible for reviewing content, catching inaccuracies, and making sure new information gets added when things change.
The most natural approach is to assign ownership based on who's closest to the subject matter. A senior developer is a good fit for technical documentation. Someone in HR should own policy pages. A customer success lead is a good choice when overseeing external help articles. The people who know the content best are also best equipped to notice when it's wrong.
Document ownership can also be tied to people in specific workflows. An example can be a software developer who is working on a feature in a sprint. Before the feature can be checked off as done, the changes to the product must be reflected in the knowledge base.
That said, ownership doesn't mean everyone else is off the hook. If someone reads an article and spots something outdated or missing, it's just as much their responsibility to flag it as it is the owner's responsibility to fix it. Again, a knowledge base's succes comes from being taken care of by the entire organization or team, and not just a handful of people who carry all of the weight, despite them having the ownership roles.
Make documentation part of the workflow
The single most effective thing you can do for your knowledge base is stop treating documentation as a separate task and start treating it as part of the work itself. This is despite the fact that many people brush off documentation as being a secondary thought and something that doesn't feel "productive" when making changes to products or internal processes.
Documentation can become a part of the workflow in many different ways, and it largely depends on what kind of the existing processes and workflows of an organization or team. For software teams, this might mean documentation is part of the definition of "done" - a pull request doesn't get merged until the relevant docs are updated. For teams working in sprints or project milestones, a documentation review becomes a standard part of the finish stage, not an afterthought.
This also touches on the fact that documentation is easiest to update when it is fresh. The longer a team waits, the more context get lost, and the harder it becomes to recollect which thoughts went into the decisions that were made.
Standardize structure and style
Consistency may come as an afterthought when building and maintaining a knowledge base, but it can have a significant impact on both usability and maintainability. When every document or article follows largely the same structure, like a clear title, summary and well-organized body, readers always know where to look. This also makes it easier to create new resources, as having clear predefined sections and landmarks make it easier to fill in the important information.
A practical way to achieve this is to build a small library of templates for the most common document types your team produces, like how-to guides, troubleshooting articles, policy definitions, runbooks, and so on. When someone needs to document something, they start from a template rather than a blank page. Learn more in our guide on how to write a knowledge base article.
It's also worth having a short style guide that covers the basics: heading hierarchy, tone of voice, how to format code or commands, and how to link to related resources. It doesn't need to be long, a single page is usually enough.
For more on this, see our guide on how to structure a knowledge base.
Schedule regular audits
Even with great workflows and clear ownership, some decay is inevitable. Products change, interfaces get redesigned, workarounds become obsolete, screenshots go stale. A period audit (quarterly or monthly depending on the team's pace) is a good way of finding stale content that might have slipped through.
It helps to approach audits systematically rather than just skimming through articles. Check whether the steps in a how-to guide still match the current product. Verify that links still work. Look for articles that reference tools or processes that no longer exist. Flag anything that needs updating, and either fix it or assign it to someone who can.
One thing worth calling out specifically: if your team uses AI tools to help write or update documentation, which is increasingly common, audits become even more important. Large language models can occasionally produce confident-sounding errors, and if those errors make it into your knowledge base without being caught, they can be particularly damaging to trust.
For a deeper look at balancing automation with human oversight, see our guide on AI and knowledge bases.
Build a feedback loop
The people reading your knowledge base are usually the first to notice when something is wrong. A customer who can't follow a troubleshooting guide, or a new hire who gets stuck on an onboarding step, has information your team needs, but only if there's an easy way for them to share it. Users of any platform tend to not respond if there is friction between reporting something, so having an easy and lightweight way of gathering feedback is essential.
Most knowledge base platforms support comments or feedback mechanisms at the article level. Enabling these, and actually responding to them, turns your readers into active contributors to the quality of your knowledge base. Even a simple thumbs up / thumbs down widget can reveal which articles are working and which aren't.
The key is treating this feedback as a priority rather than a nice-to-have. When a reader flags an article as confusing or outdated, that's a signal worth acting on quickly. And when people see that their feedback leads to real improvements, they're more likely to keep contributing.
Maintenance looks different for internal and external knowledge bases
The practices above apply broadly, but how you implement them depends on whether you're maintaining an internal knowledge base, an external one, or both.
Internal knowledge bases tend to have distributed ownership, the teams closest to the work maintain the documentation for that work. They can afford to be informal and assume shared context. The main risk is that things get outdated without anyone noticing, because the people who would notice are also the people too busy to update.
External knowledge bases, on the other hand, directly affect the customer experience. Outdated help articles lead to support tickets, frustrated customers, and churn. Ownership here often falls to a dedicated content or documentation team, and the bar for accuracy is higher because the audience doesn't have the context to know when something is wrong.
If you're running both, which most organizations eventually do, it's worth thinking about whether a hybrid setup on a single platform makes sense. Some content applies to both audiences, and maintaining it in two places doubles the risk of things going out of sync. For more on this, see our article on internal vs. external knowledge bases.
A note on trust
Everything in this guide comes back to one thing: trust. A knowledge base is only as valuable as the confidence people have in what it contains. If readers have been burned by outdated information before, they'll start double-checking everything, or stop using the knowledge base altogether and go back to asking colleagues directly.
Building that trust takes time and consistency. It means following through on ownership, building documentation into workflows, auditing regularly, and responding to feedback. None of these are particularly difficult in isolation, but doing all of them reliably, over time, is what separates a knowledge base that actually gets used from one that sits there collecting dust.
The initial investment is real, but so is the payoff: a team that can find answers without interrupting each other, customers who can help themselves, and institutional knowledge that doesn't walk out the door when someone leaves.