[backport#14704]: doc: add detached release notes for #14060

Summary:
86cddf0856dc56fabba250254cd6c0745be69eb7 doc: add detached release notes for #14060 (mruddy)

Pull request description:

Adding detached release notes for #14060 in order to assist with https://github.com/bitcoin/bitcoin/pull/14688.

Backport of Core PR14704

Test Plan: none

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D6528