We changed the webpushd IPC interface in 257669@main but forgot to increment the version number of the protocol to mark it as non-backwards compatible.
<rdar://problem/103418764>
Pull request: https://github.com/WebKit/WebKit/pull/7720
Committed 258036@main (1699ee8adf47): <https://commits.webkit.org/258036@main> Reviewed commits have been landed. Closing PR #7720 and removing active labels.