A CV stays current between job searches when updating it becomes a short, regular habit rather than a project you only start once a new opportunity forces the issue. The habit is small: a running note of what changed in your role, added the same week it happens rather than reconstructed from memory months later, and folded into the CV itself every few months so the document never drifts far from the truth. None of this requires a full rewrite each time; it requires noticing a change while it is still fresh and writing it down somewhere before it is forgotten.
Why a CV goes stale between searches
Most people only open their CV again once they actually need it, and by then, months or years of small, gradual changes have piled up unrecorded: a project finished, a new tool adopted, a responsibility picked up that nobody formally announced. None of that shows up automatically, because a CV only reflects what was written down at the time. The result is a document that has to be reconstructed from memory under time pressure, right when there is the least time to do it carefully, which is a worse moment to be doing that work than any other point in the year.
A light logging habit instead of a full rewrite
The fix is not visiting the CV itself more often, it is keeping a short running note somewhere separate from the CV, a plain document or a note-taking app works fine, and adding one line to it whenever something worth remembering happens: a project shipped, positive feedback received, a new responsibility taken on, a tool or process learned. Writing the note down close to the moment it happens matters more than writing it well, since a rough line jotted down immediately is easier to turn into a polished CV bullet later than a vague memory recovered under pressure months afterward. This running note is not itself the CV update, it is the raw material for one, and keeping the two separate means the CV itself only needs attention a few times a year rather than continuously.
What to log and when
A few kinds of moments are worth a line in the running note as they happen: finishing a project or a clearly defined phase of one, taking on a new tool, process or area of responsibility, receiving specific positive feedback from a manager or colleague, and any situation where you made a decision or handled an exception that used to require someone else's input. None of these need a title change or a formal announcement to count; most real growth inside a stable role happens exactly this quietly. A rough scope note, such as how many people or systems something now touches, is worth capturing at the time it happens too, since scope is exactly the kind of detail that is hardest to reconstruct accurately after the fact.
Illustrative example: a quarterly update routine
Illustrative routine: every three months, spend fifteen minutes reading through whatever accumulated in the running note since the last pass, and turn the two or three most substantial entries into proper CV bullets, replacing anything they make outdated rather than just adding to the bottom of a section. A rough note reading "took over the vendor relationship after Priya left" becomes a proper bullet describing what that ownership now includes; a note reading "new reporting tool, saves a lot of manual work" becomes a specific line about the tool and what it replaced. The other entries in the running note that turned out less significant in hindsight get skipped this round rather than forced into the CV regardless, and the note itself gets cleared out once its useful entries have been folded in.
What a running log does not replace
A running note keeps a CV from drifting too far out of date, but it is not a substitute for occasionally stepping back and reading the whole document with fresh eyes, since a habit of small additions can still leave an older summary line or an outdated skills section untouched for years even while everything else gets regular small updates. How to write a resume covers the structural side of a CV worth revisiting periodically alongside the running-note habit, particularly the summary and the overall section order, which tend to describe an earlier version of the role even in a CV that has otherwise been kept reasonably current.
When the gap has already grown large
The light habit described here works well once a CV is already reasonably current, but it assumes there is not already years of unrecorded change sitting underneath an unchanged document. A CV that has genuinely not been touched in a long time needs a different starting point first: updating an old CV after several years in the same job covers that one-time stock-take, and the running-note habit described here is what keeps the next update from turning into the same kind of project again.
Keep it current
Starting the running note costs a few minutes, and the first quarterly pass through it is usually the one that feels the most worthwhile, since it turns several months of otherwise-forgotten progress into a handful of concrete CV lines all at once. Keep the CV itself in the builder so each quarterly pass is a short editing session rather than a fresh document started from nothing.