Dangerous: all software working with pictures have to keep compatibility, think about it and you'll see lock up are nefarious for customers and I pay so I want compatibility.
Never had this issue with 10 years of use of photoshop.
The fact that the whole software industry is playing the very same game of renting instead of owning and put in place lock up strategy to increase money over usability is a scam.
You've bought a knife or a fork, you own them, you use them as you like when you want them, no incompatibility with slice of bread from knife 1 and slice of bread from knife 2. You bought a car, it runs on the road, it works with gasoil, electricity, hydrogen, what else and it still use the road. I want software to produce output compatible with other software version because working with others is about compatibility.
The way things go is no ownership of anything which is depossession and is obviously not what we want (If you want to give me everything you've please let me know in the comment, I'll send you address and bank account for you to send me your money btw).
The fact that Adobe has moved into this game is a sure thing that it's bad: I was using CS2 then CS6 and they were fine but when they moved to the rent model under the cloud, suddenly their tools become more and more toys like and I work with tools not toys. I want to have them having a stable UI and not 'hey we have a new function which will make your life a dream!' because NO there is no function doing the hard work for you (I saw this mesh warp function in Affinity V2 which was a remake of puppet warp intruduced in Photoshop more than 8 years ago:
). You do the hard work because you've a passion for it, you like that and painting is about patience, taking time to observe, learn, grow not clicking the magic button who do stuff you don't know how to do and paying the new function. But newbies like that: hey I'm an artist, look I push the button and the super graphics is done. So it's not you an artist, it's the software doing things instead of you: you become dependent of it. If you're great at graphics, you can do it with mspaint: no function, just your skills.
I bought Affinity V1 5 months ago, now Serif wants me to pay again and make my V2 pictures not compatible with V1 while removing the layers panel and changing the UI with strange choice (dots instead of crossed square) and I should be happy and tell them thanks?
Come on, this is critical thinking.
If Serif wants to improve its UI that's ok, just enable more options to enable / disable it in the preferences.
Want to change the file format? Ok again, just enable compatibility option in the preferences.