It can depend on which part of the development process we're in when these items are posted (they're extracted directly from the change log that we post with each release).
In a normal minor release (4.x.X) when we release the first beta, the version becomes 'locked'. From that point on we'll only include either really important fixes or fixes for issues that may have been introduced by the beta release.
In short, if we're in the beta process, the list included in these types of topics would largely (but not exclusively) be for the following months update. If it's listed here, it's something that has been fixed and will be in a near future release.
You should watch the release notes however for the definite list of what's included in each update.
https://invisioncommunity.com/release-notes/