Confidence is low.
Altium have dropped the ball on updates, but there is a new release in the pipeline.
I still recommend that folks check it out, I think for its price it is quite well featured.
The libraries and schematic entry are very similar to and compatible with AD.
So, for younger folks, if you are going after a job with a company that uses AD (a lot do) then CS is a great skill to have on your CV.
To be very honest, after a while these isn't so much to update anymore?
Except when programs still have some nasty annoyances and bugs.
For this reason I have been using CoCreate 8 (3D CAD) for years (started at a certain company I was working for back in the day)
There just wasn't a need to upgrade.
There are reasons to update a PCB designer. New package types are introduced every now and then, they should have wizzard for creating them. Gerber X2 is the format of today, CS doesnt have support for it (AFAIK), only legacy gerber. New windows versions break existing functionality, like a few years ago, some microsoft office update broke all .dblib library in Altium. PCBs are expected to do more today, with flexible stackups, touch sensors, built in components.
It is possible, that you dont need all these, and happy with a 20 year old software. But I would rather suggest investing your time and effort into something, that is not a dead end.
That all depends on usage and context.
Personally I think that the vast majority of companies and professionals don't need all these features.
(seen from experience)
And 40k or so (sometimes every year) in total for licenses is for a small business a substantial amount.
Especially when you only make like one or two unique board designs a year.