Created attachment 216399 [details] Updates Handbook section 14.4.3 for updating Jails The FreeBSD Handbook Section 14.4.3 "Keeping Jails Patched and up to Date" does not cover upgrading a jail to a new release of FreeBSD. Here is a patch that adds how to do that. Reference the "Upgrading Jails" section of "FreeBSD Mastery: Jails" by Michael W. Lucas, and also https://forums.freebsd.org/threads/jail-binary-upgrade.74898/
A commit references this bug: Author: gbe Date: Fri Jul 17 21:26:19 UTC 2020 New revision: 54360 URL: https://svnweb.freebsd.org/changeset/doc/54360 Log: Handbook: Jails, add upgrade instructions. PR: 247927 Submitted by: Chris Jordan <cwjordandt at gmail dot com> Reviewed by: debdrup, bcr (mentor) Approved by: bcr (mentor) Differential Revision: https://reviews.freebsd.org/D25668 Changes: head/en_US.ISO8859-1/books/handbook/jails/chapter.xml
With minor corrections committed. Thanks for the patch!