is this library stable?

[nort3x]

i'm new to react,
i'm searching for solutions for routing and the biggest name in the field is react-router-* ...
but i've found apis are changing wildly (for instance from v5 to v6) and it's shipping more than what i expect it to do (which makes it even more likely to be unstable in future updates)

for instance i couldn't make it work with an article i've found on v5 and you may say ofcouse not, it's v6!
but my statement is "did browser apis changed? or was library not tested and designed carefully enough for this breaking changes?"

can i use this library without next release making my code instant legacy???