Note
In Vim v9.1.1230 a bundled package to highlight yanked text has been included. If you are running newer versions of Vim, then you should use the bundled package instead of this plugin. You can add the bundled package by adding packadd! hlyank in your .vimrc file. Enjoy! :)
Highlight yanked text for Vim9.
# Default values
g:hlyanked_hlgroup = 'Visual'
g:hlyanked_timeout = 400 # [ms]
When you yank some new text, the newly yanked text ends up in the 1 register and the content of the following registers is shifted by one (i.e. the content of register 2 is moved into register 3, the content of register 3 is moved into register 4 and so on). In this way you never lose previously yanked text.
To disable such a behavior set:
g:hlyanked_save_yanks = false
BSD-3 Clause.