docs: point 3.x compatibility link at the v3.x floating tag

zirkelc · zirkelc · commit c9f62ce8e613 · 2026-06-30T14:31:07.000+02:00
v3 is now the stable release on main, so link the version compatibility
note to /tree/v3.x (matching the v2.x line) instead of the next branch.
diff --git a/README.md b/README.md
@@ -30,7 +30,7 @@ This library turns that boilerplate into one-liners, ready to use. Models are vi
 > Version compatibility:
 >
 > - Use [`ai-test-kit@2.x`](https://github.com/zirkelc/ai-test-kit/tree/v2.x) for AI SDK v6 (provider spec `v3`)
-> - Use [`ai-test-kit@3.x`](https://github.com/zirkelc/ai-test-kit/tree/next) for AI SDK v7 (provider spec `v4`)
+> - Use [`ai-test-kit@3.x`](https://github.com/zirkelc/ai-test-kit/tree/v3.x) for AI SDK v7 (provider spec `v4`)
 
 ```bash
 npm install -D ai-test-kit@2 # for AI SDK v6

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ This library turns that boilerplate into one-liners, ready to use. Models are vi`
`30`	`30`	`> Version compatibility:`
`31`	`31`	`>`
`32`	`32`	> - Use [`ai-test-kit@2.x`](https://github.com/zirkelc/ai-test-kit/tree/v2.x) for AI SDK v6 (provider spec `v3`)
`33`		-> - Use [`ai-test-kit@3.x`](https://github.com/zirkelc/ai-test-kit/tree/next) for AI SDK v7 (provider spec `v4`)
	`33`	+> - Use [`ai-test-kit@3.x`](https://github.com/zirkelc/ai-test-kit/tree/v3.x) for AI SDK v7 (provider spec `v4`)
`34`	`34`
`35`	`35`	```bash
`36`	`36`	`npm install -D ai-test-kit@2 # for AI SDK v6`