I'm trying to upgrade pyenv with homebrew for getting new Python releases.
Here is the problem:
$ brew upgrade pyenv
Error: pyenv 1.2.7 already installed
Is there a kind of update latency in homebrew package versioning? I am aware of the existence of other ways to install pyenv, but I'd like to use homebrew.
pyenv 1.2.8 is not yet officially released.
On the master branch the last tag is 1.2.7.
The commit you mentioned in your question is in preparation for release 1.2.8.
Version 1.2.7 is here https://github.com/pyenv/pyenv/tree/v1.2.7
Version 1.2.8 should be here https://github.com/pyenv/pyenv/tree/v1.2.8 but nothing is there (yet).
Verify which pyenv your system is using.
I thought I had this issue but then realized I had two different installs on my computer and my system was not actually using the brew installed pyenv --version.
Grepping my shell history, I saw that at some point I installed pyenv with curl using pyenv-installer for some reason. The command I found in my history was curl https://pyenv.run | bash. I followed the pyenv-installer directions to uninstall. Make sure to restart your shell once you uninstall!
I then reinstalled pyenv with brew. brew reinstall pyenv though I'm not sure if that's necessary.
I now see the newer versions of python available for install with pyenv install --list