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diff --git a/oh-my-zsh/plugins/rbenv/README.md b/oh-my-zsh/plugins/rbenv/README.md
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+++ b/oh-my-zsh/plugins/rbenv/README.md
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+# rbenv plugin
+
+The primary job of this plugin is to provide `rbenv_prompt_info` which can be added to your theme to include Ruby
+version and gemset information into your prompt.
+
+Some functionality of this plugin will not work unless you also have the rbenv plugin *gemset* installed.
+https://github.com/jf/rbenv-gemset
+
+To use it, add `rbenv` to the plugins array in your zshrc file:
+```zsh
+plugins=(... rbenv)
+```
+
+## Alias
+
+| Alias          | Command             | Description                      |
+|----------------|---------------------|----------------------------------|
+| rubies         | `rbenv versions`    | List the installed Ruby versions |
+| gemsets        | `rbenv gemset list` | List the existing gemsets        |
+
+## Functions
+
+* `current_ruby`: The version of Ruby currently being used.
+* `current_gemset`: The name of the current gemset.
+* `gems`: Lists installed gems with enhanced formatting and color.
+* `rbenv_prompt_info`: For adding information to your prompt. Format: `<ruby version>@<current gemset>`.
diff --git a/oh-my-zsh/plugins/rbenv/rbenv.plugin.zsh b/oh-my-zsh/plugins/rbenv/rbenv.plugin.zsh
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+++ b/oh-my-zsh/plugins/rbenv/rbenv.plugin.zsh
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+# This plugin loads rbenv into the current shell and provides prompt info via
+# the 'rbenv_prompt_info' function.
+
+FOUND_RBENV=$+commands[rbenv]
+
+if [[ $FOUND_RBENV -ne 1 ]]; then
+  rbenvdirs=("$HOME/.rbenv" "/usr/local/rbenv" "/opt/rbenv" "/usr/local/opt/rbenv")
+  for dir in $rbenvdirs; do
+    if [[ -d $dir/bin ]]; then
+      export PATH="$dir/bin:$PATH"
+      FOUND_RBENV=1
+      break
+    fi
+  done
+fi
+
+if [[ $FOUND_RBENV -ne 1 ]]; then
+  if (( $+commands[brew] )) && dir=$(brew --prefix rbenv 2>/dev/null); then
+    if [[ -d $dir/bin ]]; then
+      export PATH="$dir/bin:$PATH"
+      FOUND_RBENV=1
+    fi
+  fi
+fi
+
+if [[ $FOUND_RBENV -eq 1 ]]; then
+  eval "$(rbenv init --no-rehash - zsh)"
+
+  alias rubies="rbenv versions"
+  alias gemsets="rbenv gemset list"
+
+  function current_ruby() {
+    echo "$(rbenv version-name)"
+  }
+
+  function current_gemset() {
+    echo "$(rbenv gemset active 2>/dev/null)" | tr ' ' '+'
+  }
+
+  function gems() {
+    local rbenv_path=$(rbenv prefix)
+    gem list $@ | sed -E \
+      -e "s/\([0-9a-z, \.]+( .+)?\)/$fg[blue]&$reset_color/g" \
+      -e "s|$(echo $rbenv_path)|$fg[magenta]\$rbenv_path$reset_color|g" \
+      -e "s/$current_ruby@global/$fg[yellow]&$reset_color/g" \
+      -e "s/$current_ruby$current_gemset$/$fg[green]&$reset_color/g"
+  }
+
+  function rbenv_prompt_info() {
+    local ruby=${$(current_ruby):gs/%/%%} gemset=${$(current_gemset):gs/%/%%}
+    echo -n "${ZSH_THEME_RUBY_PROMPT_PREFIX}"
+    [[ -n "$gemset" ]] && echo -n "${ruby}@${gemset}" || echo -n "${ruby}"
+    echo "${ZSH_THEME_RUBY_PROMPT_SUFFIX}"
+  }
+else
+  alias rubies="ruby -v"
+  function gemsets() { echo "not supported" }
+  function current_ruby() { echo "not supported" }
+  function current_gemset() { echo "not supported" }
+  function gems() { echo "not supported" }
+  function rbenv_prompt_info() {
+    echo -n "${ZSH_THEME_RUBY_PROMPT_PREFIX}"
+    echo -n "system: $(ruby -v | cut -f-2 -d ' ' | sed 's/%/%%/g')"
+    echo "${ZSH_THEME_RUBY_PROMPT_SUFFIX}"
+  }
+fi
+
+unset FOUND_RBENV rbenvdirs dir