CDK V2 migration : Will it work if I have different bootstrap version on two different aws accounts which has trust relation

[dhirajkhodade]

We have 2 aws accounts acc1 and acc2
acc1 has all the self mutating cdk pipelines (written in cdk v1) to deploy infrastructure in acc2
both the accounts were on bootstrap version 5.

Now we decided to upgrade to cdk v2 so we upgraded acc2 bootstrap version to 12 and acc1 is still on bootstrap version 5

So my question is
will my existing cross account deployment pipelines (cdk v1) in acc1 (with bootstrap 5) work and deploy infra to acc2 (bootstrap 12) ?

or is it necessary to have all communicating aws accounts on same bootstrap version?