diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc2a1fa1..15d65a98 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.7.0
+- Enable asynchronous mode by default (#498)
+- No longer wrap user widgets starting with `autosuggest-` prefix (#496)
+- Fix a bug wrapping widgets that modify the buffer (#541)
+
+
 ## v0.6.4
 - Fix `vi-forward-char` triggering a bell when using it to accept a suggestion (#488)
 - New configuration option to skip completion suggestions when buffer matches a pattern (#487)
diff --git a/INSTALL.md b/INSTALL.md
index 9d2915ef..196524fe 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -39,7 +39,10 @@
 2. Add the plugin to the list of plugins for Oh My Zsh to load (inside `~/.zshrc`):
 
     ```sh
-    plugins=(zsh-autosuggestions)
+    plugins=( 
+        # other plugins...
+        zsh-autosuggestions
+    )
     ```
 
 3. Start a new terminal session.
diff --git a/LICENSE b/LICENSE
index ef7cfb63..7ea78cc6 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 Copyright (c) 2013 Thiago de Arruda
-Copyright (c) 2016-2019 Eric Freese
+Copyright (c) 2016-2021 Eric Freese
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation
diff --git a/README.md b/README.md
index 06d26e35..3cfd2e82 100644
--- a/README.md
+++ b/README.md
@@ -79,9 +79,11 @@ Widgets that modify the buffer and are not found in any of these arrays will fet
 Set `ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE` to an integer value to disable autosuggestion for large buffers. The default is unset, which means that autosuggestion will be tried for any buffer size. Recommended value is 20.
 This can be useful when pasting large amount of text in the terminal, to avoid triggering autosuggestion for strings that are too long.
 
-### Enable Asynchronous Mode
+### Asynchronous Mode
 
-As of `v0.4.0`, suggestions can be fetched asynchronously. To enable this behavior, set the `ZSH_AUTOSUGGEST_USE_ASYNC` variable (it can be set to anything).
+Suggestions are fetched asynchronously by default in zsh versions 5.0.8 and greater. To disable asynchronous suggestions and fetch them synchronously instead, `unset ZSH_AUTOSUGGEST_USE_ASYNC` after sourcing the plugin.
+
+Alternatively, if you are using a version of zsh older than 5.0.8 and want to enable asynchronous mode, set the `ZSH_AUTOSUGGEST_USE_ASYNC` variable after sourcing the plugin (it can be set to anything). Note that there is [a bug](https://github.com/zsh-users/zsh-autosuggestions/issues/364#issuecomment-481423232) in versions of zsh older than 5.0.8 where <kbd>ctrl</kbd> + <kbd>c</kbd> will fail to reset the prompt immediately after fetching a suggestion asynchronously.
 
 ### Disabling automatic widget re-binding
 
@@ -89,13 +91,13 @@ Set `ZSH_AUTOSUGGEST_MANUAL_REBIND` (it can be set to anything) to disable autom
 
 ### Ignoring history suggestions that match a pattern
 
-Set `ZSH_AUTOSUGGEST_HISTORY_IGNORE` to a glob pattern to prevent offering suggestions for history entries that match the pattern. For example, set it to `"cd *"` to never suggest any `cd` commands from history. Or set to `"?(#c50,)"` to never suggest anything 50 characters or longer.
+Set `ZSH_AUTOSUGGEST_HISTORY_IGNORE` to a [glob pattern](http://zsh.sourceforge.net/Doc/Release/Expansion.html#Glob-Operators) to prevent offering suggestions for history entries that match the pattern. For example, set it to `"cd *"` to never suggest any `cd` commands from history. Or set to `"?(#c50,)"` to never suggest anything 50 characters or longer.
 
 **Note:** This only affects the `history` and `match_prev_cmd` suggestion strategies.
 
 ### Skipping completion suggestions for certain cases
 
-Set `ZSH_AUTOSUGGEST_COMPLETION_IGNORE` to a glob pattern to prevent offering completion suggestions when the buffer matches that pattern. For example, set it to `"git *"` to disable completion suggestions for git subcommands.
+Set `ZSH_AUTOSUGGEST_COMPLETION_IGNORE` to a [glob pattern](http://zsh.sourceforge.net/Doc/Release/Expansion.html#Glob-Operators) to prevent offering completion suggestions when the buffer matches that pattern. For example, set it to `"git *"` to disable completion suggestions for git subcommands.
 
 **Note:** This only affects the `completion` suggestion strategy.
 
diff --git a/VERSION b/VERSION
index 2fc7b367..8b20e485 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v0.6.4
+v0.7.0
diff --git a/ZSH_VERSIONS b/ZSH_VERSIONS
index ed7b882f..18ed7a62 100644
--- a/ZSH_VERSIONS
+++ b/ZSH_VERSIONS
@@ -14,3 +14,4 @@
 5.5.1
 5.6.2
 5.7.1
+5.8
diff --git a/spec/multi_line_spec.rb b/spec/multi_line_spec.rb
index 4ff2ae12..364780a2 100644
--- a/spec/multi_line_spec.rb
+++ b/spec/multi_line_spec.rb
@@ -1,11 +1,6 @@
 describe 'a multi-line suggestion' do
   it 'should be displayed on multiple lines' do
-    with_history(-> {
-      session.send_string('echo "')
-      session.send_keys('enter')
-      session.send_string('"')
-      session.send_keys('enter')
-    }) do
+    with_history("echo \"\n\"") do
       session.send_keys('e')
       wait_for { session.content }.to eq("echo \"\n\"")
     end
diff --git a/spec/options/use_async_spec.rb b/spec/options/use_async_spec.rb
deleted file mode 100644
index 420dcc30..00000000
--- a/spec/options/use_async_spec.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-describe 'suggestion fetching' do
-  it 'is performed synchronously'
-
-  context 'when ZSH_AUTOSUGGEST_USE_ASYNC is set' do
-    it 'is performed asynchronously'
-  end
-end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index cb149ef1..dc1abb0a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,6 +1,7 @@
 require 'pry'
 require 'rspec/wait'
 require 'terminal_session'
+require 'tempfile'
 
 RSpec.shared_context 'terminal session' do
   let(:term_opts) { {} }
@@ -21,18 +22,20 @@
   end
 
   def with_history(*commands, &block)
-    session.run_command('fc -p')
+    Tempfile.create do |f|
+      f.write(commands.map{|c| c.gsub("\n", "\\\n")}.join("\n"))
+      f.flush
 
-    commands.each do |c|
-      c.respond_to?(:call) ? c.call : session.run_command(c)
-    end
+      session.run_command('fc -p')
+      session.run_command("fc -R #{f.path}")
 
-    session.clear_screen
+      session.clear_screen
 
-    yield block
+      yield block
 
-    session.send_keys('C-c')
-    session.run_command('fc -P')
+      session.send_keys('C-c')
+      session.run_command('fc -P')
+    end
   end
 end
 
diff --git a/spec/strategies/special_characters_helper.rb b/spec/strategies/special_characters_helper.rb
index 8771861f..eb1f0cdd 100644
--- a/spec/strategies/special_characters_helper.rb
+++ b/spec/strategies/special_characters_helper.rb
@@ -1,58 +1,71 @@
 shared_examples 'special characters' do
-  describe 'a special character in the buffer' do
-    it 'should be treated like any other character' do
+  describe 'a special character in the buffer should be treated like any other character' do
+    it 'asterisk' do
       with_history('echo "hello*"', 'echo "hello."') do
         session.send_string('echo "hello*')
         wait_for { session.content }.to eq('echo "hello*"')
       end
+    end
 
+    it 'question mark' do
       with_history('echo "hello?"', 'echo "hello."') do
         session.send_string('echo "hello?')
         wait_for { session.content }.to eq('echo "hello?"')
       end
+    end
 
+    it 'backslash' do
       with_history('echo "hello\nworld"') do
         session.send_string('echo "hello\\')
         wait_for { session.content }.to eq('echo "hello\nworld"')
       end
+    end
 
+    it 'double backslash' do
       with_history('echo "\\\\"') do
         session.send_string('echo "\\\\')
         wait_for { session.content }.to eq('echo "\\\\"')
       end
+    end
 
+    it 'tilde' do
       with_history('echo ~/foo') do
         session.send_string('echo ~')
         wait_for { session.content }.to eq('echo ~/foo')
       end
+    end
 
+    it 'parentheses' do
       with_history('echo "$(ls foo)"') do
         session.send_string('echo "$(')
         wait_for { session.content }.to eq('echo "$(ls foo)"')
       end
+    end
 
+    it 'square bracket' do
       with_history('echo "$history[123]"') do
         session.send_string('echo "$history[')
         wait_for { session.content }.to eq('echo "$history[123]"')
         session.send_string('123]')
         wait_for { session.content }.to eq('echo "$history[123]"')
       end
+    end
 
+    it 'octothorpe' do
       with_history('echo "#yolo"') do
         session.send_string('echo "#')
         wait_for { session.content }.to eq('echo "#yolo"')
       end
+    end
 
-      with_history('echo "#foo"', 'echo $#abc') do
-        session.send_string('echo "#')
-        wait_for { session.content }.to eq('echo "#foo"')
-      end
-
+    it 'caret' do
       with_history('echo "^A"', 'echo "^B"') do
         session.send_string('echo "^A')
         wait_for { session.content }.to eq('echo "^A"')
       end
+    end
 
+    it 'dash' do
       with_history('-foo() {}') do
         session.send_string('-')
         wait_for { session.content }.to eq('-foo() {}')
diff --git a/src/async.zsh b/src/async.zsh
index 4314e8c6..218eb269 100644
--- a/src/async.zsh
+++ b/src/async.zsh
@@ -44,7 +44,8 @@ _zsh_autosuggest_async_request() {
 
 	# There's a weird bug here where ^C stops working unless we force a fork
 	# See https://github.com/zsh-users/zsh-autosuggestions/issues/364
-	command true
+	autoload -Uz is-at-least
+	is-at-least 5.8 || command true
 
 	# Read the pid from the child process
 	read _ZSH_AUTOSUGGEST_CHILD_PID <&$_ZSH_AUTOSUGGEST_ASYNC_FD
diff --git a/src/bind.zsh b/src/bind.zsh
index fc2da9e2..1dde137c 100644
--- a/src/bind.zsh
+++ b/src/bind.zsh
@@ -69,7 +69,7 @@ _zsh_autosuggest_bind_widgets() {
 	ignore_widgets=(
 		.\*
 		_\*
-		autosuggest-\*
+		${_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS/#/autosuggest-}
 		$ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX\*
 		$ZSH_AUTOSUGGEST_IGNORE_WIDGETS
 	)
diff --git a/src/start.zsh b/src/start.zsh
index 59910390..5d4ee521 100644
--- a/src/start.zsh
+++ b/src/start.zsh
@@ -18,6 +18,16 @@ _zsh_autosuggest_start() {
 	_zsh_autosuggest_bind_widgets
 }
 
+# Mark for auto-loading the functions that we use
+autoload -Uz add-zsh-hook is-at-least
+
+# Automatically enable asynchronous mode in newer versions of zsh. Disable for
+# older versions because there is a bug when using async mode where ^C does not
+# work immediately after fetching a suggestion.
+# See https://github.com/zsh-users/zsh-autosuggestions/issues/364
+if is-at-least 5.0.8; then
+	typeset -g ZSH_AUTOSUGGEST_USE_ASYNC=
+fi
+
 # Start the autosuggestion widgets on the next precmd
-autoload -Uz add-zsh-hook
 add-zsh-hook precmd _zsh_autosuggest_start
diff --git a/src/strategies/completion.zsh b/src/strategies/completion.zsh
index 4290f0cc..e2d114c8 100644
--- a/src/strategies/completion.zsh
+++ b/src/strategies/completion.zsh
@@ -45,8 +45,6 @@ _zsh_autosuggest_capture_completion_widget() {
 zle -N autosuggest-capture-completion _zsh_autosuggest_capture_completion_widget
 
 _zsh_autosuggest_capture_setup() {
-	autoload -Uz is-at-least
-
 	# There is a bug in zpty module in older zsh versions by which a
 	# zpty that exits will kill all zpty processes that were forked
 	# before it. Here we set up a zsh exit hook to SIGKILL the zpty
diff --git a/src/widgets.zsh b/src/widgets.zsh
index 8f097928..bd616669 100644
--- a/src/widgets.zsh
+++ b/src/widgets.zsh
@@ -20,7 +20,7 @@ _zsh_autosuggest_enable() {
 
 # Toggle suggestions (enable/disable)
 _zsh_autosuggest_toggle() {
-	if [[ -n "${_ZSH_AUTOSUGGEST_DISABLED+x}" ]]; then
+	if (( ${+_ZSH_AUTOSUGGEST_DISABLED} )); then
 		_zsh_autosuggest_enable
 	else
 		_zsh_autosuggest_disable
@@ -61,25 +61,14 @@ _zsh_autosuggest_modify() {
 		return $retval
 	fi
 
-	# Optimize if manually typing in the suggestion
-	if (( $#BUFFER > $#orig_buffer )); then
-		local added=${BUFFER#$orig_buffer}
-
-		# If the string added matches the beginning of the postdisplay
-		if [[ "$added" = "${orig_postdisplay:0:$#added}" ]]; then
-			POSTDISPLAY="${orig_postdisplay:$#added}"
-			return $retval
-		fi
-	fi
-
-	# Don't fetch a new suggestion if the buffer hasn't changed
-	if [[ "$BUFFER" = "$orig_buffer" ]]; then
-		POSTDISPLAY="$orig_postdisplay"
+	# Optimize if manually typing in the suggestion or if buffer hasn't changed
+	if [[ "$BUFFER" = "$orig_buffer"* && "$orig_postdisplay" = "${BUFFER:$#orig_buffer}"* ]]; then
+		POSTDISPLAY="${orig_postdisplay:$(($#BUFFER - $#orig_buffer))}"
 		return $retval
 	fi
 
 	# Bail out if suggestions are disabled
-	if [[ -n "${_ZSH_AUTOSUGGEST_DISABLED+x}" ]]; then
+	if (( ${+_ZSH_AUTOSUGGEST_DISABLED} )); then
 		return $?
 	fi
 
@@ -205,8 +194,21 @@ _zsh_autosuggest_partial_accept() {
 }
 
 () {
+	typeset -ga _ZSH_AUTOSUGGEST_BUILTIN_ACTIONS
+
+	_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS=(
+		clear
+		fetch
+		suggest
+		accept
+		execute
+		enable
+		disable
+		toggle
+	)
+
 	local action
-	for action in clear modify fetch suggest accept partial_accept execute enable disable toggle; do
+	for action in $_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS modify partial_accept; do
 		eval "_zsh_autosuggest_widget_$action() {
 			local -i retval
 
@@ -223,12 +225,7 @@ _zsh_autosuggest_partial_accept() {
 		}"
 	done
 
-	zle -N autosuggest-fetch _zsh_autosuggest_widget_fetch
-	zle -N autosuggest-suggest _zsh_autosuggest_widget_suggest
-	zle -N autosuggest-accept _zsh_autosuggest_widget_accept
-	zle -N autosuggest-clear _zsh_autosuggest_widget_clear
-	zle -N autosuggest-execute _zsh_autosuggest_widget_execute
-	zle -N autosuggest-enable _zsh_autosuggest_widget_enable
-	zle -N autosuggest-disable _zsh_autosuggest_widget_disable
-	zle -N autosuggest-toggle _zsh_autosuggest_widget_toggle
+	for action in $_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS; do
+		zle -N autosuggest-$action _zsh_autosuggest_widget_$action
+	done
 }
diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index a8ef6c41..b19cac73 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -1,8 +1,8 @@
 # Fish-like fast/unobtrusive autosuggestions for zsh.
 # https://github.com/zsh-users/zsh-autosuggestions
-# v0.6.4
+# v0.7.0
 # Copyright (c) 2013 Thiago de Arruda
-# Copyright (c) 2016-2019 Eric Freese
+# Copyright (c) 2016-2021 Eric Freese
 # 
 # Permission is hereby granted, free of charge, to any person
 # obtaining a copy of this software and associated documentation
@@ -199,7 +199,7 @@ _zsh_autosuggest_bind_widgets() {
 	ignore_widgets=(
 		.\*
 		_\*
-		autosuggest-\*
+		${_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS/#/autosuggest-}
 		$ZSH_AUTOSUGGEST_ORIGINAL_WIDGET_PREFIX\*
 		$ZSH_AUTOSUGGEST_IGNORE_WIDGETS
 	)
@@ -282,7 +282,7 @@ _zsh_autosuggest_enable() {
 
 # Toggle suggestions (enable/disable)
 _zsh_autosuggest_toggle() {
-	if [[ -n "${_ZSH_AUTOSUGGEST_DISABLED+x}" ]]; then
+	if (( ${+_ZSH_AUTOSUGGEST_DISABLED} )); then
 		_zsh_autosuggest_enable
 	else
 		_zsh_autosuggest_disable
@@ -323,25 +323,14 @@ _zsh_autosuggest_modify() {
 		return $retval
 	fi
 
-	# Optimize if manually typing in the suggestion
-	if (( $#BUFFER > $#orig_buffer )); then
-		local added=${BUFFER#$orig_buffer}
-
-		# If the string added matches the beginning of the postdisplay
-		if [[ "$added" = "${orig_postdisplay:0:$#added}" ]]; then
-			POSTDISPLAY="${orig_postdisplay:$#added}"
-			return $retval
-		fi
-	fi
-
-	# Don't fetch a new suggestion if the buffer hasn't changed
-	if [[ "$BUFFER" = "$orig_buffer" ]]; then
-		POSTDISPLAY="$orig_postdisplay"
+	# Optimize if manually typing in the suggestion or if buffer hasn't changed
+	if [[ "$BUFFER" = "$orig_buffer"* && "$orig_postdisplay" = "${BUFFER:$#orig_buffer}"* ]]; then
+		POSTDISPLAY="${orig_postdisplay:$(($#BUFFER - $#orig_buffer))}"
 		return $retval
 	fi
 
 	# Bail out if suggestions are disabled
-	if [[ -n "${_ZSH_AUTOSUGGEST_DISABLED+x}" ]]; then
+	if (( ${+_ZSH_AUTOSUGGEST_DISABLED} )); then
 		return $?
 	fi
 
@@ -467,8 +456,21 @@ _zsh_autosuggest_partial_accept() {
 }
 
 () {
+	typeset -ga _ZSH_AUTOSUGGEST_BUILTIN_ACTIONS
+
+	_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS=(
+		clear
+		fetch
+		suggest
+		accept
+		execute
+		enable
+		disable
+		toggle
+	)
+
 	local action
-	for action in clear modify fetch suggest accept partial_accept execute enable disable toggle; do
+	for action in $_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS modify partial_accept; do
 		eval "_zsh_autosuggest_widget_$action() {
 			local -i retval
 
@@ -485,14 +487,9 @@ _zsh_autosuggest_partial_accept() {
 		}"
 	done
 
-	zle -N autosuggest-fetch _zsh_autosuggest_widget_fetch
-	zle -N autosuggest-suggest _zsh_autosuggest_widget_suggest
-	zle -N autosuggest-accept _zsh_autosuggest_widget_accept
-	zle -N autosuggest-clear _zsh_autosuggest_widget_clear
-	zle -N autosuggest-execute _zsh_autosuggest_widget_execute
-	zle -N autosuggest-enable _zsh_autosuggest_widget_enable
-	zle -N autosuggest-disable _zsh_autosuggest_widget_disable
-	zle -N autosuggest-toggle _zsh_autosuggest_widget_toggle
+	for action in $_ZSH_AUTOSUGGEST_BUILTIN_ACTIONS; do
+		zle -N autosuggest-$action _zsh_autosuggest_widget_$action
+	done
 }
 
 #--------------------------------------------------------------------#
@@ -541,8 +538,6 @@ _zsh_autosuggest_capture_completion_widget() {
 zle -N autosuggest-capture-completion _zsh_autosuggest_capture_completion_widget
 
 _zsh_autosuggest_capture_setup() {
-	autoload -Uz is-at-least
-
 	# There is a bug in zpty module in older zsh versions by which a
 	# zpty that exits will kill all zpty processes that were forked
 	# before it. Here we set up a zsh exit hook to SIGKILL the zpty
@@ -804,7 +799,8 @@ _zsh_autosuggest_async_request() {
 
 	# There's a weird bug here where ^C stops working unless we force a fork
 	# See https://github.com/zsh-users/zsh-autosuggestions/issues/364
-	command true
+	autoload -Uz is-at-least
+	is-at-least 5.8 || command true
 
 	# Read the pid from the child process
 	read _ZSH_AUTOSUGGEST_CHILD_PID <&$_ZSH_AUTOSUGGEST_ASYNC_FD
@@ -853,6 +849,16 @@ _zsh_autosuggest_start() {
 	_zsh_autosuggest_bind_widgets
 }
 
+# Mark for auto-loading the functions that we use
+autoload -Uz add-zsh-hook is-at-least
+
+# Automatically enable asynchronous mode in newer versions of zsh. Disable for
+# older versions because there is a bug when using async mode where ^C does not
+# work immediately after fetching a suggestion.
+# See https://github.com/zsh-users/zsh-autosuggestions/issues/364
+if is-at-least 5.0.8; then
+	typeset -g ZSH_AUTOSUGGEST_USE_ASYNC=
+fi
+
 # Start the autosuggestion widgets on the next precmd
-autoload -Uz add-zsh-hook
 add-zsh-hook precmd _zsh_autosuggest_start