Breaking change of store subscriber vs $ prefix on v5?

[ginpei]

I found a behaviour doesn't match between v5 and v4. Is this change intentional, or better to report as a bug?

Here is the code:

<script>
	import { writable } from 'svelte/store';

	const value = writable(100);
	value.subscribe((newValue) => console.log(newValue, $value));
</script>

<input bind:value={$value} type="number" />

• v5: https://svelte.dev/playground/01ab0d2cb45149f1b2db645c0cbed251?version=5.47.1
• v4: https://svelte.dev/playground/01ab0d2cb45149f1b2db645c0cbed251?version=4.2.20

When I change the input from 100 to 101, v5 shows "101, 100" while v4 shows "101, 101". (I understand it wouldn't be a good idea to mix up using both newValue and $value anyway)

Also please let me know if I overlooked an announcement about this

[brunnerh]

Seems like an unrealistic edge case, might just be a bug.
I would recommend reporting it just in case.

[webJose]

I bet I read something about an inevitable breaking change, and it might be this one. Still, feel free to report. Worst case scenario, you'll be told reasons and decisions for not fixing.