Word for "a change not noticable, transparent to users"

I'm making a change in the software which should be unnoticeable to users. What would be a single word that describes it best? I'm looking for an adjective that fits into sentence such as 'This change will be _____ to the end user.'


In software and hardware engineering the term would be "transparent".

For example:

Some devops heavyweights release software updates thousands of times per day — often so transparently that their users are not even aware.

From: Devops: Farewell to major software releases and welcome to transparent software