diff --git a/README.md b/README.md
index 42c68532..d6b40af0 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,8 @@ License
 (The MIT License)
 
 Copyright (c) 2009-2011 Robby Russell and contributors.
-Copyright (c) 2011-2014 Sorin Ionescu and contributors.
+
+Copyright (c) 2011-2015 Sorin Ionescu and contributors.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
@@ -107,7 +108,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
 [1]: http://www.zsh.org
-[2]: http://i.imgur.com/AzjmpwM.png "sorin theme"
+[2]: http://i.imgur.com/nrGV6pg.png "sorin theme"
 [3]: http://git-scm.com
 [4]: https://github.com
 [5]: http://gitimmersion.com
diff --git a/modules/README.md b/modules/README.md
index 4d247b24..2a49804c 100644
--- a/modules/README.md
+++ b/modules/README.md
@@ -26,6 +26,11 @@ Directory
 
 Sets directory options and defines directory aliases.
 
+DNF
+---
+
+Defines dnf aliases.
+
 Dpkg
 ----
 
@@ -92,7 +97,7 @@ Homebrew
 
 Defines Homebrew aliases.
 
-Macports
+MacPorts
 --------
 
 Defines MacPorts aliases and adds MacPorts directories to path variables.
diff --git a/modules/completion/external b/modules/completion/external
index ed964013..68c94947 160000
--- a/modules/completion/external
+++ b/modules/completion/external
@@ -1 +1 @@
-Subproject commit ed964013e290677c866a055e1c1ece6f33f64151
+Subproject commit 68c949470eaa87c5d67080d32fb2b69c8b837eb4
diff --git a/modules/completion/init.zsh b/modules/completion/init.zsh
index 9b5132c7..023a90e7 100644
--- a/modules/completion/init.zsh
+++ b/modules/completion/init.zsh
@@ -24,7 +24,7 @@ autoload -Uz compinit && compinit -i
 setopt COMPLETE_IN_WORD    # Complete from both ends of a word.
 setopt ALWAYS_TO_END       # Move cursor to the end of a completed word.
 setopt PATH_DIRS           # Perform path search even on command names with slashes.
-setopt AUTO_MENU           # Show completion menu on a succesive tab press.
+setopt AUTO_MENU           # Show completion menu on a successive tab press.
 setopt AUTO_LIST           # Automatically list choices on ambiguous completion.
 setopt AUTO_PARAM_SLASH    # If completed parameter is a directory, add a trailing slash.
 unsetopt MENU_COMPLETE     # Do not autoselect the first completion entry.
@@ -34,7 +34,7 @@ unsetopt FLOW_CONTROL      # Disable start/stop characters in shell editor.
 # Styles
 #
 
-# Use caching to make completion for cammands such as dpkg and apt usable.
+# Use caching to make completion for commands such as dpkg and apt usable.
 zstyle ':completion::complete:*' use-cache on
 zstyle ':completion::complete:*' cache-path "${ZDOTDIR:-$HOME}/.zcompcache"
 
diff --git a/modules/dnf/README.md b/modules/dnf/README.md
new file mode 100644
index 00000000..06439544
--- /dev/null
+++ b/modules/dnf/README.md
@@ -0,0 +1,29 @@
+DNF
+===
+
+Defines [dnf][1] aliases.
+
+Aliases
+-------
+
+  - `dnfc` removes package(s) and leaves.
+  - `dnfi` installs package(s).
+  - `dnfh` displays history.
+  - `dnfl` lists packages.
+  - `dnfL` lists installed packages.
+  - `dnfq` displays package information.
+  - `dnfr` removes package(s).
+  - `dnfs` searches for a package.
+  - `dnfu` updates packages.
+  - `dnfU` upgrates packages.
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][2].*
+
+  - [Sorin Ionescu](https://github.com/sorin-ionescu)
+
+[1]: https://fedoraproject.org/wiki/Features/DNF
+[2]: https://github.com/sorin-ionescu/prezto/issues
+
diff --git a/modules/dnf/init.zsh b/modules/dnf/init.zsh
new file mode 100644
index 00000000..7a401423
--- /dev/null
+++ b/modules/dnf/init.zsh
@@ -0,0 +1,28 @@
+#
+# Defines dnf aliases.
+#
+# Authors:
+#   FireWave <firewave@free.fr>
+#   Sorin Ionescu <sorin.ionescu@gmail.com>
+#
+
+# Return if requirements are not found.
+if (( ! $+commands[dnf] )); then
+  return 1
+fi
+
+#
+# Aliases
+#
+
+alias dnfc='sudo dnf clean all'    # Cleans the cache.
+alias dnfh='dnf history'           # Displays history.
+alias dnfi='sudo dnf install'      # Installs package(s).
+alias dnfl='dnf list'              # Lists packages.
+alias dnfL='dnf list installed'    # Lists installed packages.
+alias dnfq='dnf info'              # Displays package information.
+alias dnfr='sudo dnf remove'       # Removes package(s).
+alias dnfs='dnf search'            # Searches for a package.
+alias dnfu='sudo dnf update'       # Updates packages.
+alias dnfU='sudo dnf upgrade'      # Upgrades packages.
+
diff --git a/modules/history-substring-search/external b/modules/history-substring-search/external
index 9f9fc7d5..c4a83561 160000
--- a/modules/history-substring-search/external
+++ b/modules/history-substring-search/external
@@ -1 +1 @@
-Subproject commit 9f9fc7d550cc547737f4c686591cbbf07e7470b0
+Subproject commit c4a83561a12b898ff7145856d0e6ae50757e28ba
diff --git a/modules/homebrew/README.md b/modules/homebrew/README.md
index 69a4e87b..84b43865 100644
--- a/modules/homebrew/README.md
+++ b/modules/homebrew/README.md
@@ -13,8 +13,7 @@ Aliases
   - `brewi` installs a formula.
   - `brewl` lists installed formulae.
   - `brews` searches for a formula.
-  - `brewU` upgrades Homebrew and outdated brews.
-  - `brewu` upgrades Homebrew.
+  - `brewu` updates Homebrew and formulae.
   - `brewx` uninstalls a formula.
 
 ### Homebrew Cask
diff --git a/modules/homebrew/init.zsh b/modules/homebrew/init.zsh
index 101b6b97..1ebe793d 100644
--- a/modules/homebrew/init.zsh
+++ b/modules/homebrew/init.zsh
@@ -6,7 +6,7 @@
 #
 
 # Return if requirements are not found.
-if [[ "$OSTYPE" != darwin* ]]; then
+if [[ "$OSTYPE" != (darwin|linux)* ]]; then
   return 1
 fi
 
@@ -20,8 +20,7 @@ alias brewC='brew cleanup --force'
 alias brewi='brew install'
 alias brewl='brew list'
 alias brews='brew search'
-alias brewu='brew upgrade'
-alias brewU='brew update && brew upgrade'
+alias brewu='brew update && brew upgrade --all'
 alias brewx='brew remove'
 
 # Homebrew Cask
diff --git a/modules/macports/README.md b/modules/macports/README.md
index 97f67ea0..70e4b8b9 100644
--- a/modules/macports/README.md
+++ b/modules/macports/README.md
@@ -1,4 +1,4 @@
-Macports
+MacPorts
 ========
 
 Defines MacPorts aliases and adds MacPorts directories to path variables.
diff --git a/modules/prompt/external/pure b/modules/prompt/external/pure
index e5a55c54..04212522 160000
--- a/modules/prompt/external/pure
+++ b/modules/prompt/external/pure
@@ -1 +1 @@
-Subproject commit e5a55c5469b82da5bd9a9e42b144cef7cec8915b
+Subproject commit 04212522f39f43998d001b4a94b05856f010a54b
diff --git a/modules/prompt/functions/async b/modules/prompt/functions/async
new file mode 120000
index 00000000..d4b591e1
--- /dev/null
+++ b/modules/prompt/functions/async
@@ -0,0 +1 @@
+../external/pure/async.zsh
\ No newline at end of file
diff --git a/modules/prompt/functions/prompt_sorin_setup b/modules/prompt/functions/prompt_sorin_setup
index 508dc80d..7a0dab75 100644
--- a/modules/prompt/functions/prompt_sorin_setup
+++ b/modules/prompt/functions/prompt_sorin_setup
@@ -5,7 +5,28 @@
 #   Sorin Ionescu <sorin.ionescu@gmail.com>
 #
 # Screenshots:
-#   http://i.imgur.com/AzjmpwM.png
+#   http://i.imgur.com/nrGV6pg.png
+#
+
+#
+# 16 Terminal Colors
+# -- ---------------
+#  0 black
+#  1 red
+#  2 green
+#  3 yellow
+#  4 blue
+#  5 magenta
+#  6 cyan
+#  7 white
+#  8 bright black
+#  9 bright red
+# 10 bright green
+# 11 bright yellow
+# 12 bright blue
+# 13 bright magenta
+# 14 bright cyan
+# 15 bright white
 #
 
 # Load dependencies.
@@ -22,6 +43,33 @@ function prompt_sorin_pwd {
   fi
 }
 
+function prompt_sorin_git_info {
+  # Append Git status.
+  if [[ -s "$_prompt_sorin_precmd_async_data" ]]; then
+    alias typeset='typeset -g'
+    source "$_prompt_sorin_precmd_async_data"
+    RPROMPT+='${git_info:+${(e)git_info[status]}}'
+    unalias typeset
+  fi
+
+  # Reset PID.
+  _prompt_sorin_precmd_async_pid=0
+
+  # Redisplay prompt.
+  zle && zle reset-prompt
+}
+
+function prompt_sorin_precmd_async {
+  # Get Git repository information.
+  if (( $+functions[git-info] )); then
+    git-info
+    typeset -p git_info >! "$_prompt_sorin_precmd_async_data"
+  fi
+
+  # Signal completion to parent process.
+  kill -USR1 $$
+}
+
 function prompt_sorin_precmd {
   setopt LOCAL_OPTIONS
   unsetopt XTRACE KSH_ARRAYS
@@ -29,16 +77,26 @@ function prompt_sorin_precmd {
   # Format PWD.
   prompt_sorin_pwd
 
-  # Get Git repository information.
-  if (( $+functions[git-info] )); then
-    git-info
+  # Define prompts.
+  RPROMPT='${editor_info[overwrite]}%(?:: %F{1}⏎%f)${VIM:+" %B%F{6}V%f%b"}'
+
+  # Kill the old process of slow commands if it is still running.
+  if (( _prompt_sorin_precmd_async_pid > 0 )); then
+    kill -TERM "$_prompt_sorin_precmd_async_pid" &>/dev/null
   fi
+
+  # Compute slow commands in the background.
+  trap prompt_sorin_git_info USR1
+  prompt_sorin_precmd_async &!
+  _prompt_sorin_precmd_async_pid=$!
 }
 
 function prompt_sorin_setup {
   setopt LOCAL_OPTIONS
   unsetopt XTRACE KSH_ARRAYS
   prompt_opts=(cr percent subst)
+  _prompt_sorin_precmd_async_pid=0
+  _prompt_sorin_precmd_async_data="${TMPPREFIX}-prompt_sorin_data"
 
   # Load required functions.
   autoload -Uz add-zsh-hook
@@ -47,34 +105,33 @@ function prompt_sorin_setup {
   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'
+  zstyle ':prezto:module:editor:info:completing' format '%B%F{7}...%f%b'
+  zstyle ':prezto:module:editor:info:keymap:primary' format ' %B%F{1}❯%F{3}❯%F{2}❯%f%b'
+  zstyle ':prezto:module:editor:info:keymap:primary:overwrite' format ' %F{3}♺%f'
+  zstyle ':prezto:module:editor:info:keymap:alternate' format ' %B%F{2}❮%F{3}❮%F{1}❮%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'
-  zstyle ':prezto:module:git:info:behind' format ' %%B%F{yellow}⬇%f%%b'
-  zstyle ':prezto:module:git:info:branch' format ':%F{green}%b%f'
-  zstyle ':prezto:module:git:info:commit' format ':%F{green}%.7c%f'
-  zstyle ':prezto:module:git:info:deleted' format ' %%B%F{red}✖%f%%b'
-  zstyle ':prezto:module:git:info:modified' format ' %%B%F{blue}✱%f%%b'
-  zstyle ':prezto:module:git:info:position' format ':%F{red}%p%f'
-  zstyle ':prezto:module:git:info:renamed' format ' %%B%F{magenta}➜%f%%b'
-  zstyle ':prezto:module:git:info:stashed' format ' %%B%F{cyan}✭%f%%b'
-  zstyle ':prezto:module:git:info:unmerged' format ' %%B%F{yellow}═%f%%b'
-  zstyle ':prezto:module:git:info:untracked' format ' %%B%F{white}◼%f%%b'
+  zstyle ':prezto:module:git:info:action' format '%F{7}:%f%%B%F{9}%s%f%%b'
+  zstyle ':prezto:module:git:info:added' format ' %%B%F{2}✚%f%%b'
+  zstyle ':prezto:module:git:info:ahead' format ' %%B%F{13}⬆%f%%b'
+  zstyle ':prezto:module:git:info:behind' format ' %%B%F{13}⬇%f%%b'
+  zstyle ':prezto:module:git:info:branch' format ' %%B%F{2}%b%f%%b'
+  zstyle ':prezto:module:git:info:commit' format ' %%B%F{3}%.7c%f%%b'
+  zstyle ':prezto:module:git:info:deleted' format ' %%B%F{1}✖%f%%b'
+  zstyle ':prezto:module:git:info:modified' format ' %%B%F{4}✱%f%%b'
+  zstyle ':prezto:module:git:info:position' format ' %%B%F{13}%p%f%%b'
+  zstyle ':prezto:module:git:info:renamed' format ' %%B%F{5}➜%f%%b'
+  zstyle ':prezto:module:git:info:stashed' format ' %%B%F{6}✭%f%%b'
+  zstyle ':prezto:module:git:info:unmerged' format ' %%B%F{3}═%f%%b'
+  zstyle ':prezto:module:git:info:untracked' format ' %%B%F{7}◼%f%%b'
   zstyle ':prezto:module:git:info:keys' format \
-    'prompt' ' %F{blue}git%f$(coalesce "%b" "%p" "%c")%s' \
-    'rprompt' '%A%B%S%a%d%m%r%U%u'
+    'status' '$(coalesce "%b" "%p" "%c")%s%A%B%S%a%d%m%r%U%u'
 
   # Define prompts.
-  PROMPT='${SSH_TTY:+"%F{red}%n%f@%F{yellow}%m%f "}%F{cyan}${_prompt_sorin_pwd}%f${git_info:+${(e)git_info[prompt]}}%(!. %B%F{red}#%f%b.)${editor_info[keymap]} '
-  RPROMPT='${editor_info[overwrite]}%(?:: %F{red}⏎%f)${VIM:+" %B%F{green}V%f%b"}${INSIDE_EMACS:+" %B%F{green}E%f%b"}${git_info[rprompt]}'
-  SPROMPT='zsh: correct %F{red}%R%f to %F{green}%r%f [nyae]? '
+  PROMPT='${SSH_TTY:+"%F{9}%n%f%F{7}@%f%F{3}%m%f "}%F{4}${_prompt_sorin_pwd}%(!. %B%F{1}#%f%b.)${editor_info[keymap]} '
+  RPROMPT=''
+  SPROMPT='zsh: correct %F{1}%R%f to %F{2}%r%f [nyae]? '
 }
 
 prompt_sorin_setup "$@"
diff --git a/modules/terminal/init.zsh b/modules/terminal/init.zsh
index 01140d8c..b0be5023 100644
--- a/modules/terminal/init.zsh
+++ b/modules/terminal/init.zsh
@@ -6,7 +6,7 @@
 #
 
 # Return if requirements are not found.
-if [[ "$TERM" == (dumb|linux|*bsd*) ]]; then
+if [[ "$TERM" == (dumb|linux|*bsd*|eterm*) ]]; then
   return 1
 fi
 
diff --git a/modules/tmux/README.md b/modules/tmux/README.md
index b2f6bc8d..11c8a08a 100644
--- a/modules/tmux/README.md
+++ b/modules/tmux/README.md
@@ -74,4 +74,4 @@ Authors
 [4]: https://github.com/mxcl/homebrew
 [5]: https://github.com/sorin-ionescu/prezto/issues
 [6]: http://iterm2.com
-[7]: https://code.google.com/p/iterm2/wiki/TmuxIntegration
+[7]: https://gitlab.com/gnachman/iterm2/wikis/TmuxIntegration
diff --git a/modules/utility/init.zsh b/modules/utility/init.zsh
index 30fee32a..fd7aaf6e 100644
--- a/modules/utility/init.zsh
+++ b/modules/utility/init.zsh
@@ -71,9 +71,9 @@ if is-callable 'dircolors'; then
       eval "$(dircolors --sh)"
     fi
 
-    alias ls="$aliases[ls] --color=auto"
+    alias ls="${aliases[ls]:-ls} --color=auto"
   else
-    alias ls="$aliases[ls] -F"
+    alias ls="${aliases[ls]:-ls} -F"
   fi
 else
   # BSD Core Utilities
@@ -84,9 +84,9 @@ else
     # Define colors for the completion system.
     export LS_COLORS='di=34:ln=35:so=32:pi=33:ex=31:bd=36;01:cd=33;01:su=31;40;07:sg=36;40;07:tw=32;40;07:ow=33;40;07:'
 
-    alias ls='ls -G'
+    alias ls="${aliases[ls]:-ls} -G"
   else
-    alias ls='ls -F'
+    alias ls="${aliases[ls]:-ls} -F"
   fi
 fi
 
@@ -107,7 +107,7 @@ if zstyle -t ':prezto:module:utility:grep' color; then
   export GREP_COLOR='37;45'           # BSD.
   export GREP_COLORS="mt=$GREP_COLOR" # GNU.
 
-  alias grep="$aliases[grep] --color=auto"
+  alias grep="${aliases[grep]:-grep} --color=auto"
 fi
 
 # Mac OS X Everywhere