diff --git a/modules/README.md b/modules/README.md
index 79a472536b..16754fcbcb 100644
--- a/modules/README.md
+++ b/modules/README.md
@@ -46,10 +46,10 @@ GNU Utility
 
 Provides for the interactive use of GNU utilities on non-GNU systems.
 
-GPG-Agent
+GPG
 ---------
 
-Provides for an easier use of gpg-agent.
+Provides for an easier use of GPG by setting up gpg-agent.
 
 Haskell
 -------
diff --git a/modules/archive/README.md b/modules/archive/README.md
index 398d003762..37dbf121ed 100644
--- a/modules/archive/README.md
+++ b/modules/archive/README.md
@@ -26,7 +26,7 @@ installed:
   - *.lzma* requires `unlzma`.
   - *.Z* requires `uncompress`.
   - *.zip* requires `unzip`.
-  - *.rar* requires `unrar`.
+  - *.rar* requires `unrar` or `rar`.
   - *.7z* requires `7za`.
   - *.deb* requires `ar`, `tar`.
 
diff --git a/modules/archive/functions/extract b/modules/archive/functions/extract
index af7ed25a02..70fac4d832 100644
--- a/modules/archive/functions/extract
+++ b/modules/archive/functions/extract
@@ -53,7 +53,9 @@ while (( $# > 0 )); do
     (*.lzma) unlzma "$1" ;;
     (*.Z) uncompress "$1" ;;
     (*.zip) unzip "$1" -d $extract_dir ;;
-    (*.rar) unrar e -ad "$1" ;;
+    (*.rar) unrar &> /dev/null \
+      && unrar e -ad "$1" \
+      || rar e -ad "$1" ;;
     (*.7z) 7za x "$1" ;;
     (*.deb)
       mkdir -p "$extract_dir/control"
diff --git a/modules/archive/functions/ls-archive b/modules/archive/functions/ls-archive
index e8727fa123..99ebde6e9b 100644
--- a/modules/archive/functions/ls-archive
+++ b/modules/archive/functions/ls-archive
@@ -41,7 +41,9 @@ while (( $# > 0 )); do
       || lzcat "$1" | tar x${verbose:+v}f - ;;
     (*.tar) tar t${verbose:+v}f "$1" ;;
     (*.zip) unzip -l${verbose:+v} "$1" ;;
-    (*.rar) unrar ${${verbose:+v}:-l} "$1" ;;
+    (*.rar) unrar &> /dev/null \
+      && unrar ${${verbose:+v}:-l} "$1" \
+      || rar ${${verbose:+v}:-l} "$1" ;;
     (*.7z) 7za l "$1" ;;
     (*)
 			print "$0: cannot list: $1" >&2
diff --git a/modules/completion/external b/modules/completion/external
index 19e8985f8e..9cbd2b6762 160000
--- a/modules/completion/external
+++ b/modules/completion/external
@@ -1 +1 @@
-Subproject commit 19e8985f8e3747592e07f323f5182769a12a8401
+Subproject commit 9cbd2b6762689cd92c194067ac51b376fcc91e1b
diff --git a/modules/completion/init.zsh b/modules/completion/init.zsh
index 042e1a0330..3ffad63318 100644
--- a/modules/completion/init.zsh
+++ b/modules/completion/init.zsh
@@ -30,9 +30,6 @@ setopt AUTO_PARAM_SLASH    # If completed parameter is a directory, add a traili
 unsetopt MENU_COMPLETE     # Do not autoselect the first completion entry.
 unsetopt FLOW_CONTROL      # Disable start/stop characters in shell editor.
 
-# Treat these characters as part of a word.
-WORDCHARS='*?_-.[]~&;!#$%^(){}<>'
-
 #
 # Styles
 #
diff --git a/modules/editor/README.md b/modules/editor/README.md
new file mode 100644
index 0000000000..03bc02f236
--- /dev/null
+++ b/modules/editor/README.md
@@ -0,0 +1,63 @@
+Editor
+======
+
+Sets key bindings.
+
+Settings
+--------
+
+### Key bindings
+
+To enable key bindings, add the following to *zpreztorc*, and replace 'map' with
+'emacs' or 'vi'.
+
+    zstyle ':prezto:module:editor' keymap 'map'
+
+### Dot Expansion
+
+To enable the auto conversion of .... to ../.., add the following to
+*zpreztorc*.
+
+    zstyle ':prezto:module:editor' dot-expansion 'yes'
+
+Theming
+-------
+
+To indicate when the editor is in the primary keymap (emacs or viins), add
+the following to your `theme_prompt_setup` function.
+
+    zstyle ':prezto:module:editor:info:keymap:primary' format '>>>'
+
+To indicate when the editor is in the primary keymap (emacs or viins) insert
+mode, add the following to your `theme_prompt_setup` function.
+
+    zstyle ':prezto:module:editor:info:keymap:primary:insert' format 'I'
+
+To indicate when the editor is in the primary keymap (emacs or viins) overwrite
+mode, add the following to your `theme_prompt_setup` function.
+
+    zstyle ':prezto:module:editor:info:keymap:primary:overwrite' format 'O'
+
+To indicate when the editor is in the alternate keymap (vicmd), add the
+following to your `theme_prompt_setup` function.
+
+    zstyle ':prezto:module:editor:info:keymap:alternate' format '<<<'
+
+To indicate when the editor is completing, add the following to your
+`theme_prompt_setup` function.
+
+    zstyle ':prezto:module:editor:info:completing' format '...'
+
+Then add `$editor_info[context]`, where context is *keymap*, *insert*, or
+*overwrite*, to `$PROMPT` or `$RPROMPT` and call `editor-info` in the
+`prompt_name_preexec` hook function.
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][1].*
+
+  - [Sorin Ionescu](https://github.com/sorin-ionescu)
+
+[1]: https://github.com/sorin-ionescu/oh-my-zsh/issues
+
diff --git a/modules/editor/init.zsh b/modules/editor/init.zsh
index d76c605719..4838ba74ad 100644
--- a/modules/editor/init.zsh
+++ b/modules/editor/init.zsh
@@ -4,42 +4,6 @@
 # Authors:
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
-# Usage:
-#   To enable key bindings, add the following to zpreztorc, and replace 'map'
-#   with 'emacs' or 'vi.
-#
-#     zstyle ':prezto:module:editor' keymap 'map'
-#
-#   To enable the auto conversion of .... to ../.., add the following to
-#   zpreztorc.
-#
-#     zstyle ':prezto:module:editor' dot-expansion 'yes'
-#
-#   To indicate when the editor is in the primary keymap (emacs or viins), add
-#   the following to your theme prompt setup function.
-#
-#     zstyle ':prezto:module:editor:info:keymap:primary' format '>>>'
-#
-#   To indicate when the editor is in the primary keymap (emacs or viins) insert
-#   mode, add the following to your theme prompt setup function.
-#
-#     zstyle ':prezto:module:editor:info:keymap:primary:insert' format 'I'
-#
-#   To indicate when the editor is in the primary keymap (emacs or viins)
-#   overwrite mode, add the following to your theme prompt setup function.
-#
-#     zstyle ':prezto:module:editor:info:keymap:primary:overwrite' format 'O'
-#
-#   To indicate when the editor is in the alternate keymap (vicmd), add the
-#   following to your theme prompt setup function.
-#
-#     zstyle ':prezto:module:editor:info:keymap:alternate' format '<<<'
-#
-#   To indicate when the editor is completing, add the following to your theme
-#   prompt setup function.
-#
-#     zstyle ':prezto:module:editor:info:completing' format '...'
-#
 
 # Return if requirements are not found.
 if [[ "$TERM" == 'dumb' ]]; then
@@ -57,6 +21,9 @@ setopt BEEP
 # Variables
 #
 
+# Treat these characters as part of a word.
+WORDCHARS='*?_-.[]~&;!#$%^(){}<>'
+
 # Use human-friendly identifiers.
 zmodload zsh/terminfo
 typeset -gA key_info
diff --git a/modules/emacs/init.zsh b/modules/emacs/init.zsh
index c24625d1f8..cce9e1e903 100644
--- a/modules/emacs/init.zsh
+++ b/modules/emacs/init.zsh
@@ -4,12 +4,22 @@
 # Authors: Sebastian Wiesner <lunaryorn@gmail.com>
 #
 
-# Enable Carton
-if [[ -d "$HOME/.carton" ]]; then
-    path=($HOME/.carton/bin $path)
-
-    alias cai='carton install'
-    alias cau='carton update'
-    alias caI='carton init'
-    alias cae='carton exec'
+# Return if requirements are not found.
+if [[ ! -d "$HOME/.carton" ]]; then
+  return 1
 fi
+
+# Prepend Carton bin directory.
+path=($HOME/.carton/bin $path)
+
+# Load Carton completion
+source "$HOME/.carton/etc/carton_completion.zsh" 2> /dev/null
+
+#
+# Aliases
+#
+
+alias cai='carton install'
+alias cau='carton update'
+alias caI='carton init'
+alias cae='carton exec'
diff --git a/modules/environment/init.zsh b/modules/environment/init.zsh
index 79eba54d28..d05aa07b0c 100644
--- a/modules/environment/init.zsh
+++ b/modules/environment/init.zsh
@@ -17,6 +17,8 @@ zle -N self-insert url-quote-magic
 #
 
 setopt BRACE_CCL          # Allow brace character class list expansion.
+setopt COMBINING_CHARS    # Combine zero-length punctuation characters (accents)
+                          # with the base character.
 setopt RC_QUOTES          # Allow 'Henry''s Garage' instead of 'Henry'\''s Garage'.
 unsetopt MAIL_WARNING     # Don't print a warning message if a mail file has been accessed.
 
diff --git a/modules/git/README.md b/modules/git/README.md
index 717f42bb14..0dd932f6b2 100644
--- a/modules/git/README.md
+++ b/modules/git/README.md
@@ -1,7 +1,8 @@
 Git
 ===
 
-Enhances the [Git][1] distributed version control system by providing aliases, functions and by exposing repository status information to prompts.
+Enhances the [Git][1] distributed version control system by providing aliases,
+functions and by exposing repository status information to prompts.
 
 Git **1.7.2** is the [minimum required version][7].
 
@@ -12,7 +13,7 @@ Settings
 
 The format of the [git-log][8] output is configurable via the following style,
 where context is *brief*, *oneline*, and *medium*, which will be passed to the
-`--prety=format:` switch.
+`--pretty=format:` switch.
 
     zstyle ':prezto:module:git:log:context' format ''
 
@@ -38,8 +39,8 @@ Aliases
   - `gbc` creates a new branch.
   - `gbl` lists branches and their commits.
   - `gbL` lists local and remote branches and their commits.
-  - `gbs` lists branches and their commits with ancestery graphs.
-  - `gbS` lists local and remote branches and their commits with ancestery
+  - `gbs` lists branches and their commits with ancestry graphs.
+  - `gbS` lists local and remote branches and their commits with ancestry
     graphs.
   - `gbx` deletes a branch.
   - `gbX` deletes a branch irrespective of its merged status.
@@ -63,7 +64,17 @@ Aliases
      commits.
   - `gcR` removes the *HEAD* commit.
   - `gcs` displays various types of objects.
-  - `gcl` displays lost commits.
+  - `gcl` lists lost commits.
+
+### Conflict
+
+  - `gCl` lists unmerged files.
+  - `gCa` adds unmerged file contents to the index.
+  - `gCe` executes merge-tool on all unmerged file.
+  - `gCo` checks out our changes for unmerged paths.
+  - `gCO` checks out our changes for all unmerged paths.
+  - `gCt` checks out their changes for unmerged paths.
+  - `gCT` checks out their changes for all unmerged paths.
 
 ### Data
 
@@ -86,8 +97,8 @@ Aliases
 
   - `gg` displays lines matching a pattern.
   - `ggi` displays lines matching a pattern ignoring case.
-  - `ggl` displays files matching a pattern.
-  - `ggL` displays files are not matching a pattern.
+  - `ggl` lists files matching a pattern.
+  - `ggL` lists files that are not matching a pattern.
   - `ggv` displays lines not matching a pattern.
   - `ggw` displays lines matching a pattern at word boundary.
 
@@ -103,16 +114,6 @@ Aliases
   - `gix` removes files/directories from the index (recursively).
   - `giX` removes files/directories from the index (recursively and forced).
 
-### Conflict
-
-  - `gCl` lists unmerged files.
-  - `gCa` adds unmerged file contents to the index.
-  - `gCe` executes merge-tool on all unmerged file.
-  - `gCo` checks out our changes for unmerged paths.
-  - `gCO` checks out our changes for all unmerged paths.
-  - `gCt` checks out their changes for unmerged paths.
-  - `gCT` checks out their changes for all unmerged paths.
-
 ### Log
 
   - `gl` displays the log.
@@ -154,12 +155,12 @@ Aliases
 ### Remote
 
   - `gR` manages tracked repositories.
-  - `gRl` displays remote names and URLs.
+  - `gRl` lists remote names and their URLs.
   - `gRa` adds a new remote.
   - `gRx` removes a remote.
   - `gRm` renames a remote.
   - `gRu` fetches remotes updates.
-  - `gRc` deletes all stale remote tracking branches.
+  - `gRp` prunes all stale remote tracking branches.
   - `gRs` displays information about a given remote.
   - `gRb` opens a remote on [GitHub][3] in the default browser.
 
@@ -169,10 +170,9 @@ Aliases
   - `gsa` applies the changes recorded in a stash to the working directory.
   - `gsx` drops a stashed state.
   - `gsX` drops all the stashed states.
-  - `gsd` lists dropped stashed states.
   - `gsl` lists stashed states.
-  - `gsL` displays the changes recorded in the stash as a diff between the
-    stashed state and its original parent.
+  - `gsL` lists dropped stashed states.
+  - `gsd` displays changes between the stash and its original parent.
   - `gsp` removes and applies a single stashed state from the stash list.
   - `gsr` recovers a given stashed state.
   - `gss` stashes the changes of the dirty working directory, including untracked.
@@ -252,19 +252,38 @@ setting a style is as follows.
 | Name      | Format Code | Description
 | --------- | :---------: | ---------------------------------------------------
 | action    |     %s      | Special action name
-| added     |     %a      | Added files count
 | ahead     |     %A      | Commits ahead of remote count
 | behind    |     %B      | Commits behind of remote count
 | branch    |     %b      | Branch name
 | commit    |     %c      | Commit hash
+| position  |     %p      | Commits from the nearest tag count
+| remote    |     %R      | Remote name
+| stashed   |     %S      | Stashed states count
+
+### Concise Contexts
+
+| Name      | Format Code | Description
+| --------- | :---------: | ---------------------------------------------------
+| clean     |     %C      | Clean state
+| dirty     |     %D      | Dirty files count
+| indexed   |     %i      | Indexed files count
+| unindexed |     %I      | Unindexed files count
+| untracked |     %u      | Untracked files count
+
+The following contexts must be enabled with the following zstyle:
+
+    zstyle ':prezto:module:git:info' verbose 'yes'
+
+### Verbose Contexts
+
+| Name      | Format Code | Description
+| --------- | :---------: | ---------------------------------------------------
+| added     |     %a      | Added files count
 | clean     |     %C      | Clean state
 | deleted   |     %d      | Deleted files count
 | dirty     |     %D      | Dirty files count
 | modified  |     %m      | Modified files count
-| position  |     %p      | Commits from the nearest tag count
-| remote    |     %R      | Remote name
 | renamed   |     %r      | Renamed files count
-| stashed   |     %S      | Stashed states count
 | unmerged  |     %U      | Unmerged files count
 | untracked |     %u      | Untracked files count
 
diff --git a/modules/git/alias.zsh b/modules/git/alias.zsh
index 4cb10dc2ce..bf6d3644ae 100644
--- a/modules/git/alias.zsh
+++ b/modules/git/alias.zsh
@@ -56,6 +56,15 @@ alias gcR='git reset "HEAD^"'
 alias gcs='git show'
 alias gcl='git-commit-lost'
 
+# Conflict (C)
+alias gCl='git status | sed -n "s/^.*both [a-z]*ed: *//p"'
+alias gCa='git add $(gCl)'
+alias gCe='git mergetool $(gCl)'
+alias gCo='git checkout --ours --'
+alias gCO='gCo $(gCl)'
+alias gCt='git checkout --theirs --'
+alias gCT='gCt $(gCl)'
+
 # Data (d)
 alias gd='git ls-files'
 alias gdc='git ls-files --cached'
@@ -90,15 +99,6 @@ alias giR='git reset --patch'
 alias gix='git rm -r --cached'
 alias giX='git rm -rf --cached'
 
-# Conflict (C)
-alias gCl='git status | sed -n "s/^.*both [a-z]*ed: *//p"'
-alias gCa='git add $(gCl)'
-alias gCe='git mergetool $(gCl)'
-alias gCo='git checkout --ours --'
-alias gCO='gCo $(gCl)'
-alias gCt='git checkout --theirs --'
-alias gCT='gCt $(gCl)'
-
 # Log (l)
 alias gl='git log --topo-order --pretty=format:${_git_log_medium_format}'
 alias gls='git log --topo-order --stat --pretty=format:${_git_log_medium_format}'
@@ -138,7 +138,7 @@ alias gRa='git remote add'
 alias gRx='git remote rm'
 alias gRm='git remote rename'
 alias gRu='git remote update'
-alias gRc='git remote prune'
+alias gRp='git remote prune'
 alias gRs='git remote show'
 alias gRb='git-hub-browse'
 
@@ -147,9 +147,9 @@ alias gs='git stash'
 alias gsa='git stash apply'
 alias gsx='git stash drop'
 alias gsX='git-stash-clear-interactive'
-alias gsd='git-stash-dropped'
 alias gsl='git stash list'
-alias gsL='git stash show --patch --stat'
+alias gsL='git-stash-dropped'
+alias gsd='git stash show --patch --stat'
 alias gsp='git stash pop'
 alias gsr='git-stash-recover'
 alias gss='git stash save --include-untracked'
diff --git a/modules/git/functions/git-info b/modules/git/functions/git-info
index 2e52eab393..1c16396265 100644
--- a/modules/git/functions/git-info
+++ b/modules/git/functions/git-info
@@ -89,31 +89,6 @@ function _git-action {
   return 1
 }
 
-# Turns off git-info for the current repository.
-function _git-info-abort {
-  if ! is-true "$_git_info_executing"; then
-    return 1
-  fi
-
-  cat >&2 <<EOF
-
-
-Gathering status for certain repositories is time intensive.
-By pressing CTRL + C, you have turned off prompt Git status
-for this repository.
-
-To revert, execute:
-  git-info on
-
-EOF
-
-  unset _git_info_executing
-  git config --bool prompt.showinfo false
-  git-info
-  return 0
-}
-add-zsh-trap INT _git-info-abort
-
 # Gets the Git status information.
 function git-info {
   # Extended globbing is needed to parse repository status.
@@ -126,13 +101,13 @@ function git-info {
   local added=0
   local added_format
   local added_formatted
-  local ahead
+  local ahead=0
   local ahead_and_behind
   local ahead_and_behind_cmd
   local ahead_format
   local ahead_formatted
   local ahead_or_behind
-  local behind
+  local behind=0
   local behind_format
   local behind_formatted
   local branch
@@ -151,9 +126,11 @@ function git-info {
   local dirty_format
   local dirty_formatted
   local ignore_submodules
+  local indexed=0
+  local indexed_format
+  local indexed_formatted
   local -A info_formats
   local info_format
-  local line_number=0
   local modified=0
   local modified_format
   local modified_formatted
@@ -171,6 +148,10 @@ function git-info {
   local stashed_format
   local stashed_formatted
   local status_cmd
+  local status_mode
+  local unindexed=0
+  local unindexed_format
+  local unindexed_formatted
   local unmerged=0
   local unmerged_format
   local unmerged_formatted
@@ -203,135 +184,206 @@ function git-info {
     return 1
   fi
 
-  # Used to abort and turn git-info off on SIGINT.
-  _git_info_executing=true
-
-  # Use porcelain status for easy parsing.
-  status_cmd='git status --porcelain'
-
-  # Gets the remote name.
-  remote_cmd='git rev-parse --symbolic-full-name --verify HEAD@{upstream}'
-
-  # Gets the commit difference counts between local and remote.
-  ahead_and_behind_cmd='git rev-list --count --left-right HEAD...@{upstream}'
-
   # Ignore submodule status.
   zstyle -s ':prezto:module:git:status:ignore' submodules 'ignore_submodules'
-  if [[ -n "$ignore_submodules" ]]; then
-    status_cmd+=" --ignore-submodules=${ignore_submodules}"
-  fi
 
   # Format commit.
-  commit="$(git rev-parse HEAD 2> /dev/null)"
-  if [[ -n "$commit" ]]; then
-    zstyle -s ':prezto:module:git:info:commit' format 'commit_format'
-    zformat -f commit_formatted "$commit_format" "c:$commit"
+  zstyle -s ':prezto:module:git:info:commit' format 'commit_format'
+  if [[ -n "$commit_format" ]]; then
+    commit="$(git rev-parse HEAD 2> /dev/null)"
+    if [[ -n "$commit" ]]; then
+      zformat -f commit_formatted "$commit_format" "c:$commit"
+    fi
   fi
 
   # Format stashed.
-  if [[ -f "$(git-dir)/refs/stash" ]]; then
+  zstyle -s ':prezto:module:git:info:stashed' format 'stashed_format'
+  if [[ -n "$stashed_format" && -f "$(git-dir)/refs/stash" ]]; then
     stashed="$(git stash list 2> /dev/null | wc -l | awk '{print $1}')"
-    zstyle -s ':prezto:module:git:info:stashed' format 'stashed_format'
-    zformat -f stashed_formatted "$stashed_format" "S:$stashed"
+    if [[ -n "$stashed" ]]; then
+      zformat -f stashed_formatted "$stashed_format" "S:$stashed"
+    fi
   fi
 
   # Format action.
-  action="$(_git-action)"
-  if [[ -n "$action" ]]; then
-    zstyle -s ':prezto:module:git:info:action' format 'action_format'
-    zformat -f action_formatted "$action_format" "s:$action"
+  zstyle -s ':prezto:module:git:info:action' format 'action_format'
+  if [[ -n "$action_format" ]]; then
+    action="$(_git-action)"
+    if [[ -n "$action" ]]; then
+      zformat -f action_formatted "$action_format" "s:$action"
+    fi
   fi
 
-  # Get current status.
-  while IFS=$'\n' read line; do
-    # Count added, deleted, modified, renamed, unmerged, untracked, dirty.
-    # T (type change) is undocumented, see http://git.io/FnpMGw.
-    # For a table of scenarii, see http://i.imgur.com/2YLu1.png.
-    [[ "$line" == ([ACDMT][\ MT]|[ACMT]D)\ * ]] && (( added++ ))
-    [[ "$line" == [\ ACMRT]D\ * ]] && (( deleted++ ))
-    [[ "$line" == ?[MT]\ * ]] && (( modified++ ))
-    [[ "$line" == R?\ * ]] && (( renamed++ ))
-    [[ "$line" == (AA|DD|U?|?U)\ * ]] && (( unmerged++ ))
-    [[ "$line" == \?\?\ * ]] && (( untracked++ ))
-    (( dirty++ ))
-  done < <(${(z)status_cmd} 2> /dev/null)
+  # Get the branch.
+  branch="${$(git symbolic-ref HEAD 2> /dev/null)#refs/heads/}"
 
   # Format branch.
-  branch="${$(git symbolic-ref -q HEAD)##refs/heads/}"
-  if [[ -n "$branch" ]]; then
-    zstyle -s ':prezto:module:git:info:branch' format 'branch_format'
+  zstyle -s ':prezto:module:git:info:branch' format 'branch_format'
+  if [[ -n "$branch" && -n "$branch_format" ]]; then
     zformat -f branch_formatted "$branch_format" "b:$branch"
+  fi
+
+  # Format position.
+  zstyle -s ':prezto:module:git:info:position' format 'position_format'
+  if [[ -z "$branch" && -n "$position_format" ]]; then
+    position="$(git describe --contains --all HEAD 2> /dev/null)"
+    if [[ -n "$position" ]]; then
+      zformat -f position_formatted "$position_format" "p:$position"
+    fi
+  fi
 
-    # Format remote.
+  # Format remote.
+  zstyle -s ':prezto:module:git:info:remote' format 'remote_format'
+  if [[ -n "$branch" && -n "$remote_format" ]]; then
+    # Gets the remote name.
+    remote_cmd='git rev-parse --symbolic-full-name --verify HEAD@{upstream}'
     remote="${$(${(z)remote_cmd} 2> /dev/null)##refs/remotes/}"
     if [[ -n "$remote" ]]; then
-      zstyle -s ':prezto:module:git:info:remote' format 'remote_format'
       zformat -f remote_formatted "$remote_format" "R:$remote"
+    fi
+  fi
 
-      # Get ahead and behind counts.
-      ahead_and_behind="$(${(z)ahead_and_behind_cmd} 2> /dev/null)"
+  zstyle -s ':prezto:module:git:info:ahead' format 'ahead_format'
+  zstyle -s ':prezto:module:git:info:behind' format 'behind_format'
+  if [[ -n "$branch" && ( -n "$ahead_format" || -n "$behind_format" ) ]]; then
+    # Gets the commit difference counts between local and remote.
+    ahead_and_behind_cmd='git rev-list --count --left-right HEAD...@{upstream}'
 
-      # Format ahead.
+    # Get ahead and behind counts.
+    ahead_and_behind="$(${(z)ahead_and_behind_cmd} 2> /dev/null)"
+
+    # Format ahead.
+    if [[ -n "$ahead_format" ]]; then
       ahead="$ahead_and_behind[(w)1]"
-      if (( $ahead > 0 )); then
-        zstyle -s ':prezto:module:git:info:ahead' format 'ahead_format'
+      if (( ahead > 0 )); then
         zformat -f ahead_formatted "$ahead_format" "A:$ahead"
       fi
+    fi
 
-      # Format behind.
+    # Format behind.
+    if [[ -n "$behind_format" ]]; then
       behind="$ahead_and_behind[(w)2]"
-      if (( $behind > 0 )); then
-        zstyle -s ':prezto:module:git:info:behind' format 'behind_format'
+      if (( behind > 0 )); then
         zformat -f behind_formatted "$behind_format" "B:$behind"
       fi
     fi
-  else
-    # Format position.
-    position="$(git describe --contains --all HEAD 2> /dev/null)"
-    if [[ -n "$position" ]]; then
-      zstyle -s ':prezto:module:git:info:position' format 'position_format'
-      zformat -f position_formatted "$position_format" "p:$position"
-    fi
   fi
 
-  # Format added.
-  if (( $added > 0 )); then
-    zstyle -s ':prezto:module:git:info:added' format 'added_format'
-    zformat -f added_formatted "$added_format" "a:$added_format"
-  fi
+  # Get status type.
+  if ! zstyle -t ':prezto:module:git:info' verbose; then
+    # Format indexed.
+    zstyle -s ':prezto:module:git:info:indexed' format 'indexed_format'
+    if [[ -n "$indexed_format" ]]; then
+      ((
+        indexed+=$(
+          git diff-index \
+            --no-ext-diff \
+            --name-only \
+            --cached \
+            --ignore-submodules=${ignore_submodules:-none} \
+            HEAD \
+            2> /dev/null \
+          | wc -l
+        )
+      ))
+      if (( indexed > 0 )); then
+        zformat -f indexed_formatted "$indexed_format" "i:$indexed"
+      fi
+    fi
 
-  # Format deleted.
-  if (( $deleted > 0 )); then
-    zstyle -s ':prezto:module:git:info:deleted' format 'deleted_format'
-    zformat -f deleted_formatted "$deleted_format" "d:$deleted_format"
-  fi
+    # Format unindexed.
+    zstyle -s ':prezto:module:git:info:unindexed' format 'unindexed_format'
+    if [[ -n "$unindexed_format" ]]; then
+      ((
+        unindexed+=$(
+          git diff-files \
+            --no-ext-diff \
+            --name-only \
+            --ignore-submodules=${ignore_submodules:-none} \
+            2> /dev/null \
+          | wc -l
+        )
+      ))
+      if (( unindexed > 0 )); then
+        zformat -f unindexed_formatted "$unindexed_format" "I:$unindexed"
+      fi
+    fi
 
-  # Format modified.
-  if (( $modified > 0 )); then
-    zstyle -s ':prezto:module:git:info:modified' format 'modified_format'
-    zformat -f modified_formatted "$modified_format" "m:$modified"
-  fi
+    # Format untracked.
+    zstyle -s ':prezto:module:git:info:untracked' format 'untracked_format'
+    if [[ -n "$untracked_format" ]]; then
+      ((
+        untracked+=$(
+          git ls-files \
+            --other \
+            --exclude-standard \
+            2> /dev/null \
+          | wc -l
+        )
+      ))
+      if (( untracked > 0 )); then
+        zformat -f untracked_formatted "$untracked_format" "u:$untracked"
+      fi
+    fi
 
-  # Format renamed.
-  if (( $renamed > 0 )); then
-    zstyle -s ':prezto:module:git:info:renamed' format 'renamed_format'
-    zformat -f renamed_formatted "$renamed_format" "r:$renamed"
-  fi
+    (( dirty = indexed + unindexed + untracked ))
+  else
+    # Use porcelain status for easy parsing.
+    status_cmd="git status --porcelain --ignore-submodules=${ignore_submodules:-none}"
+
+    # Get current status.
+    while IFS=$'\n' read line; do
+      # Count added, deleted, modified, renamed, unmerged, untracked, dirty.
+      # T (type change) is undocumented, see http://git.io/FnpMGw.
+      # For a table of scenarii, see http://i.imgur.com/2YLu1.png.
+      [[ "$line" == ([ACDMT][\ MT]|[ACMT]D)\ * ]] && (( added++ ))
+      [[ "$line" == [\ ACMRT]D\ * ]] && (( deleted++ ))
+      [[ "$line" == ?[MT]\ * ]] && (( modified++ ))
+      [[ "$line" == R?\ * ]] && (( renamed++ ))
+      [[ "$line" == (AA|DD|U?|?U)\ * ]] && (( unmerged++ ))
+      [[ "$line" == \?\?\ * ]] && (( untracked++ ))
+      (( dirty++ ))
+    done < <(${(z)status_cmd} 2> /dev/null)
+
+    # Format added.
+    if (( added > 0 )); then
+      zstyle -s ':prezto:module:git:info:added' format 'added_format'
+      zformat -f added_formatted "$added_format" "a:$added_format"
+    fi
 
-  # Format unmerged.
-  if (( $unmerged > 0 )); then
-    zstyle -s ':prezto:module:git:info:unmerged' format 'unmerged_format'
-    zformat -f unmerged_formatted "$unmerged_format" "U:$unmerged"
-  fi
+    # Format deleted.
+    if (( deleted > 0 )); then
+      zstyle -s ':prezto:module:git:info:deleted' format 'deleted_format'
+      zformat -f deleted_formatted "$deleted_format" "d:$deleted_format"
+    fi
 
-  # Format untracked.
-  if (( $untracked > 0 )); then
-    zstyle -s ':prezto:module:git:info:untracked' format 'untracked_format'
-    zformat -f untracked_formatted "$untracked_format" "u:$untracked"
+    # Format modified.
+    if (( modified > 0 )); then
+      zstyle -s ':prezto:module:git:info:modified' format 'modified_format'
+      zformat -f modified_formatted "$modified_format" "m:$modified"
+    fi
+
+    # Format renamed.
+    if (( renamed > 0 )); then
+      zstyle -s ':prezto:module:git:info:renamed' format 'renamed_format'
+      zformat -f renamed_formatted "$renamed_format" "r:$renamed"
+    fi
+
+    # Format unmerged.
+    if (( unmerged > 0 )); then
+      zstyle -s ':prezto:module:git:info:unmerged' format 'unmerged_format'
+      zformat -f unmerged_formatted "$unmerged_format" "U:$unmerged"
+    fi
+
+    # Format untracked.
+    if (( untracked > 0 )); then
+      zstyle -s ':prezto:module:git:info:untracked' format 'untracked_format'
+      zformat -f untracked_formatted "$untracked_format" "u:$untracked"
+    fi
   fi
 
   # Format dirty and clean.
-  if (( $dirty > 0 )); then
+  if (( dirty > 0 )); then
     zstyle -s ':prezto:module:git:info:dirty' format 'dirty_format'
     zformat -f dirty_formatted "$dirty_format" "D:$dirty"
   else
@@ -342,27 +394,28 @@ function git-info {
   zstyle -a ':prezto:module:git:info:keys' format 'info_formats'
   for info_format in ${(k)info_formats}; do
     zformat -f REPLY "$info_formats[$info_format]" \
+      "a:$added_formatted" \
       "A:$ahead_formatted" \
       "B:$behind_formatted" \
-      "D:$dirty_formatted" \
-      "R:$remote_formatted" \
-      "S:$stashed_formatted" \
-      "U:$unmerged_formatted" \
-      "a:$added_formatted" \
       "b:$branch_formatted" \
       "C:$clean_formatted" \
       "c:$commit_formatted" \
       "d:$deleted_formatted" \
+      "D:$dirty_formatted" \
+      "i:$indexed_formatted" \
+      "I:$unindexed_formatted" \
       "m:$modified_formatted" \
       "p:$position_formatted" \
+      "R:$remote_formatted" \
       "r:$renamed_formatted" \
       "s:$action_formatted" \
+      "S:$stashed_formatted" \
+      "U:$unmerged_formatted" \
       "u:$untracked_formatted"
     git_info[$info_format]="$REPLY"
   done
 
   unset REPLY
-  unset _git_info_executing
 
   return 0
 }
diff --git a/modules/gpg-agent/README.md b/modules/gpg-agent/README.md
deleted file mode 100644
index 1b222d46a8..0000000000
--- a/modules/gpg-agent/README.md
+++ /dev/null
@@ -1,25 +0,0 @@
-GPG-Agent
-=========
-
-Provides for an easier use of [gpg-agent][1].
-
-Settings
---------
-
-### SSH-Agent Protocol Emulation
-
-To enable SSH-Agent protocol emulation, add the following line to *zpreztorc*:
-
-    zstyle ':prezto:module:gpg-agent' ssh-support 'yes'
-
-Authors
--------
-
-*The authors of this module should be contacted via the [issue tracker][2].*
-
-  - [Florian Walch](https://github.com/fwalch)
-  - [Sorin Ionescu](https://github.com/sorin-ionescu)
-
-[1]: http://linux.die.net/man/1/gpg-agent
-[2]: https://github.com/sorin-ionescu/prezto/issues
-
diff --git a/modules/gpg-agent/init.zsh b/modules/gpg-agent/init.zsh
deleted file mode 100644
index 82bd9a2ec4..0000000000
--- a/modules/gpg-agent/init.zsh
+++ /dev/null
@@ -1,46 +0,0 @@
-#
-# Provides for an easier use of gpg-agent.
-#
-# Authors:
-#   Florian Walch <florian.walch@gmx.at>
-#   Sorin Ionescu <sorin.ionescu@gmail.com>
-#   neersighted <neersighted@myopera.com>
-#
-
-# Return if requirements are not found.
-if (( ! $+commands[gpg-agent] )); then
-  return 1
-fi
-
-# Make sure to use the $GNUPGHOME first.
-_gpg_env="${GNUPGHOME:-$HOME/.gnupg}/gpg-agent.env"
-
-function _gpg-agent-start {
-  local ssh_support
-
-  zstyle -b ':prezto:module:gpg-agent' ssh-support 'ssh_support' \
-    || ssh_support=''
-
-  gpg-agent \
-    --daemon \
-    ${ssh_support:+'--enable-ssh-support'} \
-    --write-env-file "${_gpg_env}" > /dev/null
-
-  chmod 600 "${_gpg_env}"
-  source "${_gpg_env}" > /dev/null
-}
-
-# Source GPG agent settings, if applicable.
-if [[ -s "${_gpg_env}" ]]; then
-  source "${_gpg_env}" > /dev/null
-  ps -ef | grep "${SSH_AGENT_PID}" | grep -q 'gpg-agent' || {
-    _gpg-agent-start
-  }
-else
-  _gpg-agent-start
-fi
-
-export GPG_AGENT_INFO
-export SSH_AUTH_SOCK
-export SSH_AGENT_PID
-export GPG_TTY="$(tty)"
diff --git a/modules/gpg/README.md b/modules/gpg/README.md
new file mode 100644
index 0000000000..b13e33e9bb
--- /dev/null
+++ b/modules/gpg/README.md
@@ -0,0 +1,27 @@
+GPG
+===
+
+Provides for an easier use of [GPG][1] by setting up [gpg-agent][2].
+
+### SSH
+
+To enable OpenSSH Agent protocol emulation, and make `gpg-agent` a drop-in
+replacement for `ssh-agent`, add the following line to
+*~/.gnupg/gpg-agent.conf*:
+
+    enable-ssh-support
+
+When OpenSSH Agent protocol emulation is enabled, this module will load the SSH
+module for additional processing.
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][3].*
+
+  - [Sorin Ionescu](https://github.com/sorin-ionescu)
+
+[1]: http://www.gnupg.org
+[2]: http://linux.die.net/man/1/gpg-agent
+[3]: https://github.com/sorin-ionescu/prezto/issues
+
diff --git a/modules/gpg/init.zsh b/modules/gpg/init.zsh
new file mode 100644
index 0000000000..2e4c4eab02
--- /dev/null
+++ b/modules/gpg/init.zsh
@@ -0,0 +1,44 @@
+#
+# Provides for an easier use of GPG by setting up gpg-agent.
+#
+# Authors:
+#   Sorin Ionescu <sorin.ionescu@gmail.com>
+#
+
+# Return if requirements are not found.
+if (( ! $+commands[gpg-agent] )); then
+  return 1
+fi
+
+# Set the default paths to gpg-agent files.
+_gpg_agent_conf="$HOME/.gnupg/gpg-agent.conf"
+_gpg_agent_env="$TMPDIR/gpg-agent.env"
+
+# Start gpg-agent if not started.
+if ! ps -U "$USER" -o ucomm | grep -q gpg-agent; then
+  eval "$(gpg-agent --daemon | tee "$_gpg_agent_env")"
+else
+  # Export environment variables.
+  source "$_gpg_agent_env" 2> /dev/null
+fi
+
+# Inform gpg-agent of the current TTY for user prompts.
+export GPG_TTY="$(tty)"
+
+# Integrate with the SSH module.
+if grep 'enable-ssh-support' "$_gpg_agent_conf" &> /dev/null; then
+  # Override the ssh-agent environment file default path.
+  _ssh_agent_env="$_gpg_agent_env"
+
+  # Load the SSH module for additional processing.
+  pmodload 'ssh'
+fi
+
+# Clean up.
+unset _gpg_agent_{conf,env}
+
+# Disable GUI prompts inside SSH.
+if [[ -n "$SSH_CONNECTION" ]]; then
+  export PINENTRY_USER_DATA='USE_CURSES=1'
+fi
+
diff --git a/modules/helper/functions/add-zsh-trap b/modules/helper/functions/add-zsh-trap
index e5d4e82c27..c8796ca0d5 100644
--- a/modules/helper/functions/add-zsh-trap
+++ b/modules/helper/functions/add-zsh-trap
@@ -6,14 +6,6 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
-# Trap signals were generated with 'kill -l'.
-# DEBUG, EXIT, and ZERR are Zsh signals.
-_trap_signals=(
-  ABRT ALRM BUS CHLD CONT EMT FPE HUP ILL INFO INT IO KILL PIPE PROF QUIT
-  SEGV STOP SYS TERM TRAP TSTP TTIN TTOU URG USR1 USR2 VTALRM WINCH XCPU XFSZ
-  DEBUG EXIT ZERR
-)
-
 # Adds a function name to a list to be called when a trap is triggered.
 function add-zsh-trap {
   if (( $# < 2 )); then
@@ -21,7 +13,7 @@ function add-zsh-trap {
     return 1
   fi
 
-  if [[ -z "$_trap_signals[(r)$1]" ]]; then
+  if [[ -z "$signals[(r)$1]" ]]; then
     print "$0: unknown signal: $1" >&2
     return 1
   fi
diff --git a/modules/history-substring-search/README.md b/modules/history-substring-search/README.md
index 6bfe4e6a87..27a4a78f46 100644
--- a/modules/history-substring-search/README.md
+++ b/modules/history-substring-search/README.md
@@ -36,6 +36,18 @@ To enable highlighting for this module only, add the following line to
 
     zstyle ':prezto:module:history-substring-search' color 'yes'
 
+To set the query found color, add the following line to *zpreztorc*:
+
+    zstyle ':prezto:module:history-substring-search:color' found ''
+
+To set the query not found color, add the following line to *zpreztorc*:
+
+    zstyle ':prezto:module:history-substring-search:color' not-found ''
+
+To set the search globbing flags, add the following line to *zpreztorc*:
+
+    zstyle ':prezto:module:history-substring-search' globbing-flags ''
+
 Authors
 -------
 
diff --git a/modules/history-substring-search/external b/modules/history-substring-search/external
index 3bd84be43e..82fbef5132 160000
--- a/modules/history-substring-search/external
+++ b/modules/history-substring-search/external
@@ -1 +1 @@
-Subproject commit 3bd84be43e74710c60febfd46ced793e19fbf657
+Subproject commit 82fbef5132b44c5d039e7d25972d9351c5936bc2
diff --git a/modules/history-substring-search/init.zsh b/modules/history-substring-search/init.zsh
index ea20fffd26..53eb99be15 100644
--- a/modules/history-substring-search/init.zsh
+++ b/modules/history-substring-search/init.zsh
@@ -13,11 +13,23 @@ pmodload 'editor'
 source "${0:h}/external/zsh-history-substring-search.zsh"
 
 #
-# Styles
+# Search
 #
 
+zstyle -s ':prezto:module:history-substring-search:color' found \
+  'HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND' \
+    || HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_FOUND='bg=magenta,fg=white,bold'
+
+zstyle -s ':prezto:module:history-substring-search:color' not-found \
+  'HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND' \
+    || HISTORY_SUBSTRING_SEARCH_HIGHLIGHT_NOT_FOUND='bg=red,fg=white,bold'
+
+zstyle -s ':prezto:module:history-substring-search' globbing-flags \
+  'HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS' \
+    || HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS='i'
+
 if zstyle -t ':prezto:module:history-substring-search' case-sensitive; then
-  unset HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS
+  HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS="${HISTORY_SUBSTRING_SEARCH_GLOBBING_FLAGS//i}"
 fi
 
 if ! zstyle -t ':prezto:module:history-substring-search' color; then
@@ -28,7 +40,7 @@ fi
 # Key Bindings
 #
 
-if [[ -n $key_info ]]; then
+if [[ -n "$key_info" ]]; then
   # Emacs
   bindkey -M emacs "$key_info[Control]P" history-substring-search-up
   bindkey -M emacs "$key_info[Control]N" history-substring-search-down
diff --git a/modules/pacman/functions/pacman-list-disowned b/modules/pacman/functions/pacman-list-disowned
index d6b6f289b2..2cd8a92bbb 100644
--- a/modules/pacman/functions/pacman-list-disowned
+++ b/modules/pacman/functions/pacman-list-disowned
@@ -6,7 +6,7 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 
-local tmp="${TMPDIR:-/tmp}/pacman-disowned-$UID-$$"
+local tmp="$TMPDIR/pacman-disowned-$UID-$$"
 local db="$tmp/db"
 local fs="$tmp/fs"
 
diff --git a/modules/prompt/README.md b/modules/prompt/README.md
index 85ed13eef0..da3f2bac4c 100644
--- a/modules/prompt/README.md
+++ b/modules/prompt/README.md
@@ -34,7 +34,7 @@ including a function that displays help or a function used to preview it.
 
 **Do not call this function directly.**
 
-The most basic example of this function can be seen bellow.
+The most basic example of this function can be seen below.
 
     function prompt_name_setup {
       PROMPT='%m%# '
diff --git a/modules/prompt/functions/prompt_sorin_setup b/modules/prompt/functions/prompt_sorin_setup
index 796da78f38..c3302ad1e4 100644
--- a/modules/prompt/functions/prompt_sorin_setup
+++ b/modules/prompt/functions/prompt_sorin_setup
@@ -46,10 +46,14 @@ function prompt_sorin_setup {
   # Add hook for calling git-info before each command.
   add-zsh-hook precmd prompt_sorin_precmd
 
+  # Set editor-info parameters.
   zstyle ':prezto:module:editor:info:completing' format '%B%F{red}...%f%b'
   zstyle ':prezto:module:editor:info:keymap:primary' format ' %B%F{red}❯%F{yellow}❯%F{green}❯%f%b'
   zstyle ':prezto:module:editor:info:keymap:primary:overwrite' format ' %F{red}♺%f'
   zstyle ':prezto:module:editor:info:keymap:alternate' format ' %B%F{green}❮%F{yellow}❮%F{red}❮%f%b'
+
+  # Set git-info parameters.
+  zstyle ':prezto:module:git:info' verbose 'yes'
   zstyle ':prezto:module:git:info:action' format ':%%B%F{yellow}%s%f%%b'
   zstyle ':prezto:module:git:info:added' format ' %%B%F{green}✚%f%%b'
   zstyle ':prezto:module:git:info:ahead' format ' %%B%F{yellow}⬆%f%%b'
diff --git a/modules/rsync/README.md b/modules/rsync/README.md
index 2d2e656696..2ec211244d 100644
--- a/modules/rsync/README.md
+++ b/modules/rsync/README.md
@@ -3,9 +3,6 @@ Rsync
 
 Defines [rsync][1] aliases.
 
-Mac OS X users are encouraged to use [Bombich's rsync][2], which has HFS+
-enhancements.
-
 Aliases
 -------
 
@@ -18,11 +15,10 @@ Aliases
 Authors
 -------
 
-*The authors of this module should be contacted via the [issue tracker][3].*
+*The authors of this module should be contacted via the [issue tracker][2].*
 
   - [Sorin Ionescu](https://github.com/sorin-ionescu)
 
 [1]: http://rsync.samba.org
-[2]: http://www.bombich.com/rsync.html
-[3]: https://github.com/sorin-ionescu/prezto/issues
+[2]: https://github.com/sorin-ionescu/prezto/issues
 
diff --git a/modules/rsync/init.zsh b/modules/rsync/init.zsh
index c3b3b577b3..802952cd7b 100644
--- a/modules/rsync/init.zsh
+++ b/modules/rsync/init.zsh
@@ -17,7 +17,6 @@ fi
 _rsync_cmd='rsync --verbose --progress --human-readable --compress --archive --hard-links --one-file-system'
 
 # Mac OS X and HFS+ Enhancements
-# http://www.bombich.com/rsync.html
 if [[ "$OSTYPE" == darwin* ]] && grep -q 'file-flags' <(rsync --help 2>&1); then
   _rsync_cmd="${_rsync_cmd} --crtimes --acls --xattrs --fileflags --protect-decmpfs --force-change"
 fi
diff --git a/modules/ruby/init.zsh b/modules/ruby/init.zsh
index b287cbb2c8..0303d5a34c 100644
--- a/modules/ruby/init.zsh
+++ b/modules/ruby/init.zsh
@@ -28,6 +28,8 @@ else
   if [[ "$OSTYPE" == darwin* ]]; then
     export GEM_HOME="$HOME/Library/Ruby/Gems/1.8"
     path=("$GEM_HOME/bin" $path)
+  else
+    path=($HOME/.gem/ruby/*/bin(N) $path)
   fi
 fi
 
@@ -58,4 +60,3 @@ if (( $+commands[bundle] )); then
     && print vendor/bundle >>! .gitignore \
     && print vendor/cache  >>! .gitignore'
 fi
-
diff --git a/modules/ssh-agent/README.md b/modules/ssh-agent/README.md
deleted file mode 100644
index 392a8666fb..0000000000
--- a/modules/ssh-agent/README.md
+++ /dev/null
@@ -1,36 +0,0 @@
-SSH-Agent
-=========
-
-Provides for an easier use of [ssh-agent][1].
-
-Settings
---------
-
-### Agent Forwarding
-
-To enable SSH-Agent forwarding, add the following line to *zpreztorc*:
-
-    zstyle ':prezto:module:ssh-agent' forwarding 'yes'
-
-### Identities
-
-To load multiple identities, add the following line to *zpreztorc*:
-
-    zstyle ':prezto:module:ssh-agent' identities 'id_rsa' 'id_rsa2' 'id_github'
-
-Authors
--------
-
-*The authors of this module should be contacted via the [issue tracker][2].*
-
-  - [Robby Russell](https://github.com/robbyrussell)
-  - [Theodore Robert Campbell Jr](https://github.com/trcjr)
-  - [Joseph M. Reagle Jr.](https://github.com/reagle)
-  - [Florent Thoumie](https://github.com/flz)
-  - [Jonas Pfenniger](https://github.com/zimbatm)
-  - [Gareth Owen](https://github.com/gwjo)
-  - [Sorin Ionescu](https://github.com/sorin-ionescu)
-
-[1]: http://www.openbsd.org/cgi-bin/man.cgi?query=ssh-agent&sektion=1
-[2]: https://github.com/sorin-ionescu/prezto/issues
-
diff --git a/modules/ssh-agent/init.zsh b/modules/ssh-agent/init.zsh
deleted file mode 100644
index 56215a4f74..0000000000
--- a/modules/ssh-agent/init.zsh
+++ /dev/null
@@ -1,62 +0,0 @@
-#
-# Provides for an easier use of ssh-agent.
-#
-# Authors:
-#   Robby Russell <robby@planetargon.com>
-#   Theodore Robert Campbell Jr <trcjr@stupidfoot.com>
-#   Joseph M. Reagle Jr. <reagle@mit.edu>
-#   Florent Thoumie <flz@xbsd.org>
-#   Jonas Pfenniger <jonas@pfenniger.name>
-#   gwjo <gowen72@gmail.com>
-#   Sorin Ionescu <sorin.ionescu@gmail.com>
-#
-
-# Return if requirements are not found.
-if (( ! $+commands[ssh-agent] )); then
-  return 1
-fi
-
-# Load dependencies.
-pmodload 'helper'
-
-_ssh_agent_env="${HOME}/.ssh/environment-${HOST}"
-_ssh_agent_forwarding=
-
-function _ssh-agent-start {
-  local -a identities
-
-  # Start ssh-agent and setup the environment.
-  rm -f "${_ssh_agent_env}"
-  ssh-agent > "${_ssh_agent_env}"
-  chmod 600 "${_ssh_agent_env}"
-  source "${_ssh_agent_env}" > /dev/null
-
-  # Load identities.
-  zstyle -a ':prezto:module:ssh-agent' identities 'identities'
-
-  if (( ${#identities} > 0 )); then
-    ssh-add "${HOME}/.ssh/${^identities[@]}"
-  else
-    ssh-add
-  fi
-}
-
-# Test if agent-forwarding is enabled.
-zstyle -b ':prezto:module:ssh-agent' forwarding '_ssh_agent_forwarding'
-if is-true "${_ssh_agent_forwarding}" && [[ -n "$SSH_AUTH_SOCK" ]]; then
-  # Add a nifty symlink for screen/tmux if agent forwarding.
-  [[ -L "$SSH_AUTH_SOCK" ]] || ln -sf "$SSH_AUTH_SOCK" /tmp/ssh-agent-$USER-screen
-elif [[ -s "${_ssh_agent_env}" ]]; then
-  # Source SSH settings, if applicable.
-  source "${_ssh_agent_env}" > /dev/null
-  ps -ef | grep "${SSH_AGENT_PID}" | grep -q 'ssh-agent$' || {
-    _ssh-agent-start;
-  }
-else
-  _ssh-agent-start;
-fi
-
-# Tidy up after ourselves.
-unfunction _ssh-agent-start
-unset _ssh_agent_{env,forwarding}
-
diff --git a/modules/ssh/README.md b/modules/ssh/README.md
new file mode 100644
index 0000000000..e953a60193
--- /dev/null
+++ b/modules/ssh/README.md
@@ -0,0 +1,28 @@
+SSH
+===
+
+Provides for an easier use of [SSH][1] by setting up [ssh-agent][2].
+
+This module is disabled on Mac OS X due to custom Apple SSH support rendering it
+unnecessary.
+
+Settings
+--------
+
+### Identities
+
+To load multiple identities, add the following line to *zpreztorc*:
+
+    zstyle ':prezto:module:ssh:load' identities 'id_rsa' 'id_dsa' 'id_github'
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][3].*
+
+  - [Sorin Ionescu](https://github.com/sorin-ionescu)
+
+[1]: http://www.openssh.com
+[2]: http://www.openbsd.org/cgi-bin/man.cgi?query=ssh-agent&sektion=1
+[3]: https://github.com/sorin-ionescu/prezto/issues
+
diff --git a/modules/ssh/init.zsh b/modules/ssh/init.zsh
new file mode 100644
index 0000000000..447846f56f
--- /dev/null
+++ b/modules/ssh/init.zsh
@@ -0,0 +1,48 @@
+#
+# Provides for an easier use of SSH by setting up ssh-agent.
+#
+# Authors:
+#   Sorin Ionescu <sorin.ionescu@gmail.com>
+#
+
+# Return if requirements are not found.
+if [[ "$OSTYPE" == darwin* ]] || (( ! $+commands[ssh-agent] )); then
+  return 1
+fi
+
+# Set the path to the SSH directory.
+_ssh_dir="$HOME/.ssh"
+
+# Set the path to the environment file if not set by another module.
+_ssh_agent_env="${_ssh_agent_env:-$TMPDIR/ssh-agent.env}"
+
+# Set the path to the persistent authentication socket.
+_ssh_agent_sock="$TMPDIR/ssh-agent.sock"
+
+# Start ssh-agent if not started.
+if [[ ! -S "$SSH_AUTH_SOCK" ]]; then
+  eval "$(ssh-agent | sed '/^echo /d' | tee "$_ssh_agent_env")"
+else
+  # Export environment variables.
+  source "$_ssh_agent_env" 2> /dev/null
+fi
+
+# Load identities.
+if ssh-add -l 2>&1 | grep 'The agent has no identities'; then
+  zstyle -a ':prezto:module:ssh:load' identities '_ssh_identities'
+  if (( ${#identities} > 0 )); then
+    ssh-add "$_ssh_dir/${^_ssh_identities[@]}"
+  else
+    ssh-add
+  fi
+fi
+
+# Create a persistent SSH authentication socket.
+if [[ -S "$SSH_AUTH_SOCK" && "$SSH_AUTH_SOCK" != "$_ssh_agent_sock" ]]; then
+  ln -sf "$SSH_AUTH_SOCK" "$_ssh_agent_sock"
+  export SSH_AUTH_SOCK="$_ssh_agent_sock"
+fi
+
+# Clean up.
+unset _ssh_{dir,identities} _ssh_agent_{env,sock}
+
diff --git a/modules/syntax-highlighting/README.md b/modules/syntax-highlighting/README.md
index 7fb84e2b59..c88c54cfec 100644
--- a/modules/syntax-highlighting/README.md
+++ b/modules/syntax-highlighting/README.md
@@ -38,6 +38,18 @@ To enable all highlighters, add the following to *zpreztorc*:
       'cursor' \
       'root'
 
+### Highlighting Styles
+
+Each syntax highlighter defines styles used to highlight tokens.
+
+To highlight, for example, builtins, commands, and functions in blue instead of
+green, add the following to *zpreztorc*:
+
+    zstyle ':prezto:module:syntax-highlighting' styles \
+      'builtin' 'bg=blue' \
+      'command' 'bg=blue' \
+      'function' 'bg=blue'
+
 Authors
 -------
 
diff --git a/modules/syntax-highlighting/init.zsh b/modules/syntax-highlighting/init.zsh
index d9bd414bd1..e5c555bd12 100644
--- a/modules/syntax-highlighting/init.zsh
+++ b/modules/syntax-highlighting/init.zsh
@@ -13,9 +13,17 @@ fi
 # Source module files.
 source "${0:h}/external/zsh-syntax-highlighting.zsh"
 
-# Set the highlighters.
+# Set highlighters.
 zstyle -a ':prezto:module:syntax-highlighting' highlighters 'ZSH_HIGHLIGHT_HIGHLIGHTERS'
 if (( ${#ZSH_HIGHLIGHT_HIGHLIGHTERS[@]} == 0 )); then
-  ZSH_HIGHLIGHT_HIGHLIGHTERS=(main brackets cursor)
+  ZSH_HIGHLIGHT_HIGHLIGHTERS=(main)
 fi
 
+# Set highlighting styles.
+typeset -A syntax_highlighting_styles
+zstyle -a ':prezto:module:syntax-highlighting' styles 'syntax_highlighting_styles'
+for syntax_highlighting_style in "${(k)syntax_highlighting_styles[@]}"; do
+  ZSH_HIGHLIGHT_STYLES[$syntax_highlighting_style]="$syntax_highlighting_styles[$syntax_highlighting_style]"
+done
+unset syntax_highlighting_style{s,}
+
diff --git a/modules/tmux/init.zsh b/modules/tmux/init.zsh
index a464827640..017327501a 100644
--- a/modules/tmux/init.zsh
+++ b/modules/tmux/init.zsh
@@ -19,6 +19,9 @@ if [[ -z "$TMUX" ]] && zstyle -t ':prezto:module:tmux' auto-start; then
   tmux_session='#Prezto'
 
   if ! tmux has-session -t "$tmux_session" 2> /dev/null; then
+    # Ensure that tmux server is started.
+    tmux start-server
+
     # Disable the destruction of unattached sessions globally.
     tmux set-option -g destroy-unattached off &> /dev/null
 
diff --git a/runcoms/README.md b/runcoms/README.md
index 28064ddcdb..74030b878c 100644
--- a/runcoms/README.md
+++ b/runcoms/README.md
@@ -38,7 +38,7 @@ small as possible and should only define environment variables.
 ### zprofile
 
 This file is similar to zlogin, but it is sourced before zshrc. It was added
-for [KornShell][1] fans. See the description of zlogin bellow for what it may
+for [KornShell][1] fans. See the description of zlogin below for what it may
 contain.
 
 zprofile and zlogin are not meant to be used concurrently but can be done so.
diff --git a/runcoms/zpreztorc b/runcoms/zpreztorc
index 27aad49b49..5eca1a0d35 100644
--- a/runcoms/zpreztorc
+++ b/runcoms/zpreztorc
@@ -58,6 +58,19 @@ zstyle ':prezto:module:editor' keymap 'emacs'
 # Set the command prefix on non-GNU systems.
 # zstyle ':prezto:module:gnu-utility' prefix 'g'
 
+#
+# History Substring Search
+#
+
+# Set the query found color.
+# zstyle ':prezto:module:history-substring-search:color' found ''
+
+# Set the query not found color.
+# zstyle ':prezto:module:history-substring-search:color' not-found ''
+
+# Set the search globbing flags.
+# zstyle ':prezto:module:history-substring-search' globbing-flags ''
+
 #
 # Pacman
 #
@@ -82,34 +95,31 @@ zstyle ':prezto:module:prompt' theme 'sorin'
 # zstyle ':prezto:module:screen' auto-start 'yes'
 
 #
-# GPG-Agent
+# SSH
 #
 
-# Enable SSH-Agent protocol emulation.
-# zstyle ':prezto:module:gpg-agent' ssh-support 'yes'
-
-#
-# SSH-Agent
-#
-
-# Enable ssh-agent forwarding.
-# zstyle ':prezto:module:ssh-agent' forwarding 'yes'
-
-# Set ssh-agent identities to load.
-# zstyle ':prezto:module:ssh-agent' identities 'id_rsa' 'id_rsa2' 'id_github'
+# Set the SSH identities to load into the agent.
+# zstyle ':prezto:module:ssh:load' identities 'id_rsa' 'id_rsa2' 'id_github'
 
 #
 # Syntax Highlighting
 #
 
 # Set syntax highlighters.
-# By default main, brackets, and cursor are enabled.
+# By default, only the main highlighter is enabled.
 # zstyle ':prezto:module:syntax-highlighting' highlighters \
 #   'main' \
 #   'brackets' \
 #   'pattern' \
 #   'cursor' \
 #   'root'
+#
+# Set syntax highlighting styles.
+# zstyle ':prezto:module:syntax-highlighting' styles \
+#   'builtin' 'bg=blue' \
+#   'command' 'bg=blue' \
+#   'function' 'bg=blue'
+#
 
 #
 # Terminal
diff --git a/runcoms/zshenv b/runcoms/zshenv
index 0f8738bffa..9ff39e0675 100644
--- a/runcoms/zshenv
+++ b/runcoms/zshenv
@@ -64,10 +64,13 @@ fi
 # Temporary Files
 #
 
-if [[ -d "$TMPDIR" ]]; then
-  export TMPPREFIX="${TMPDIR%/}/zsh"
-  if [[ ! -d "$TMPPREFIX" ]]; then
-    mkdir -p "$TMPPREFIX"
-  fi
+if [[ ! -d "$TMPDIR" ]]; then
+  export TMPDIR="/tmp/$USER"
+  mkdir -p -m 700 "$TMPDIR"
+fi
+
+TMPPREFIX="${TMPDIR%/}/zsh"
+if [[ ! -d "$TMPPREFIX" ]]; then
+  mkdir -p "$TMPPREFIX"
 fi