How to include newline characters in git tag messages

The closest solution I found is to use multiple -m options, one for each line. For example:

git tag -a v1.0.0 -m "* Change number 1" -m "* Change number 2"

from git-tag man page:

-m <msg>
   Use the given tag message (instead of prompting). If multiple
   -m options are given, their values are concatenated as separate
   paragraphs. (...)

UPDATE: Check "Add line break to git commit -m from command line" for more shell-based solutions.

Best solution is to write your commit and tag messages right from your default code editor.

• Use command git tag -a v1.0.0 and hit enter. Don't write -m
• It will open up your default code editor, write message, save and close the file.
• Command line will be resumed.