[bmh]

On Ubuntu it's as easy as an `apt upgrade`.

Although I pay the fee happily, this does seem wrong. It seems to me that as a software provider you have two choices:

1. Make it a monthly (or whatever) subscription for the latest version (eg Photoshop)

2. Charge for a new version (eg apt install ST3 vs apt install ST4)

[swiley]

3. Let users pay for new features via something like patreon or a consulting firm (depending on if it's a B2C or B2B relationship.)