The phrase "a longstanding change" is correct and usable in written English.
It can be used to describe a change that has been in effect for a significant period of time.
Example: "The organization has implemented a longstanding change in its policy regarding remote work."
Alternatives: "an enduring change" or "a persistent change".
In February, the former chancellor Lord Lawson, a longstanding climate change sceptic, was given equal time on a Today programme debate about climate change and flooding with Professor Sir Brian Hoskins, a climatologist.
We know that to create longstanding change we need to work outside of our own four walls.
Now an independent financial fraud investigator, his persistence brought about longstanding changes in the SEC's structure to facilitate the detection of fraudsters.
There have been longstanding changes, of course.
Meanwhile, what has become glaringly obvious in recent days is that, contrary to Fager's previous assurances, CBS News learned little from its National Guard controversy, and did less to make longstanding changes in the way it operates.
Most participants found peer assessment of letters feasible and beneficial and longstanding changes occurred in some individuals.
A longstanding victim of change is the old profession of the devadasis, the temple courtesans once honored as divine bearers of fecundity.
Abbott, a longstanding opponent of change, has previously said the whole parliament should "own" any decision on changing the Marriage Act, which defines marriage as being between a man and a woman.
Paleolithic archaeologists have a longstanding interest in temporal change in prehistoric human behavior, and have often identified changes between archaeological periods based on sampling limitations.
The decision did not change a longstanding precedent, he said, that expert witnesses should be allowed only when the subject matter is beyond the knowledge of most jurors.
