Slots and Updates

Why are casinos updating games? What is such a thing necessary for? Can you also change a game with such an update - not in terms of new features - but rather that they tend to give less?

Was in the getslots casino and played over 400 spins on Playngo's helloween - that's a game with 7 features, where you often live from getting a free game because the game itself doesn't give much.

400 spins but only 4 times an event-respect-fairplay.

Paid in 2 times in another casino, played helloween 16 times, reached an event, and the last time I got my first multiplayer-respect-fairplay

Why do providers or game manufacturers update their games? If a game no longer works, I understand that an update should be made to make it work again. But what happens if a provider changes the gaming behavior of the slot?

They can simply update it because they need to fix bugs. You may not notice any change, but for example there can be an issue with the game on a specific device or a browser that needs to be fixed.