diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37bf991..fc2a1fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 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)
+- New configuration option to ignore history entries matching a pattern (#456)
+
 ## v0.6.3
 - Fixed bug moving cursor to end of buffer after accepting suggestion (#453)
 
diff --git a/README.md b/README.md
index 1301f1b..06d26e3 100644
--- a/README.md
+++ b/README.md
@@ -53,8 +53,8 @@ For more info, read the Character Highlighting section of the zsh manual: `man z
 `ZSH_AUTOSUGGEST_STRATEGY` is an array that specifies how suggestions should be generated. The strategies in the array are tried successively until a suggestion is found. There are currently three built-in strategies to choose from:
 
 - `history`: Chooses the most recent match from history.
+- `completion`: Chooses a suggestion based on what tab-completion would suggest. (requires `zpty` module)
 - `match_prev_cmd`: Like `history`, but chooses the most recent match whose preceding history item matches the most recently executed command ([more info](src/strategies/match_prev_cmd.zsh)). Note that this strategy won't work as expected with ZSH options that don't preserve the history order such as `HIST_IGNORE_ALL_DUPS` or `HIST_EXPIRE_DUPS_FIRST`.
-- `completion`: (experimental) Chooses a suggestion based on what tab-completion would suggest. (requires `zpty` module)
 
 For example, setting `ZSH_AUTOSUGGEST_STRATEGY=(history completion)` will first try to find a suggestion from your history, but, if it can't find a match, will find a suggestion from the completion engine.
 
@@ -87,6 +87,18 @@ As of `v0.4.0`, suggestions can be fetched asynchronously. To enable this behavi
 
 Set `ZSH_AUTOSUGGEST_MANUAL_REBIND` (it can be set to anything) to disable automatic widget re-binding on each precmd. This can be a big boost to performance, but you'll need to handle re-binding yourself if any of the widget lists change or if you or another plugin wrap any of the autosuggest widgets. To re-bind widgets, run `_zsh_autosuggest_bind_widgets`.
 
+### 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.
+
+**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.
+
+**Note:** This only affects the `completion` suggestion strategy.
+
 
 ### Key Bindings
 
diff --git a/VERSION b/VERSION
index e4c57af..2fc7b36 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v0.6.3
+v0.6.4
diff --git a/spec/strategies/completion_spec.rb b/spec/strategies/completion_spec.rb
index 2be358a..92794d6 100644
--- a/spec/strategies/completion_spec.rb
+++ b/spec/strategies/completion_spec.rb
@@ -5,7 +5,9 @@ describe 'the `completion` suggestion strategy' do
       session.
         run_command('autoload compinit && compinit').
         run_command('_foo() { compadd bar; compadd bat }').
-        run_command('compdef _foo baz')
+        run_command('_num() { compadd two; compadd three }').
+        run_command('compdef _foo baz').
+        run_command('compdef _num one')
     end
   end
 
@@ -37,6 +39,21 @@ describe 'the `completion` suggestion strategy' do
     end
   end
 
+  context 'when ZSH_AUTOSUGGEST_COMPLETION_IGNORE is set to a pattern' do
+    let(:options) { ['ZSH_AUTOSUGGEST_STRATEGY=completion', 'ZSH_AUTOSUGGEST_COMPLETION_IGNORE="one *"'] }
+
+    it 'makes suggestions when the buffer does not match the pattern' do
+      session.send_string('baz ')
+      wait_for { session.content }.to eq('baz bar')
+    end
+
+    it 'does not make suggestions when the buffer matches the pattern' do
+      session.send_string('one t')
+      sleep 1
+      expect(session.content).to eq('one t')
+    end
+  end
+
   context 'when async mode is enabled' do
     let(:options) { ['ZSH_AUTOSUGGEST_USE_ASYNC=true', 'ZSH_AUTOSUGGEST_STRATEGY=completion'] }
 
diff --git a/spec/strategies/history_spec.rb b/spec/strategies/history_spec.rb
index f8ae526..eee8efd 100644
--- a/spec/strategies/history_spec.rb
+++ b/spec/strategies/history_spec.rb
@@ -8,5 +8,16 @@ describe 'the `history` suggestion strategy' do
     end
   end
 
+  context 'when ZSH_AUTOSUGGEST_HISTORY_IGNORE is set to a pattern' do
+    let(:options) { ['ZSH_AUTOSUGGEST_HISTORY_IGNORE="* bar"'] }
+
+    it 'does not make suggestions that match the pattern' do
+      with_history('ls foo', 'ls bar', 'echo baz') do
+        session.send_string('ls')
+        wait_for { session.content }.to eq('ls foo')
+      end
+    end
+  end
+
   include_examples 'special characters'
 end
diff --git a/spec/strategies/match_prev_cmd_spec.rb b/spec/strategies/match_prev_cmd_spec.rb
index 5a143b8..c435f16 100644
--- a/spec/strategies/match_prev_cmd_spec.rb
+++ b/spec/strategies/match_prev_cmd_spec.rb
@@ -3,19 +3,32 @@ require 'strategies/special_characters_helper'
 describe 'the `match_prev_cmd` strategy' do
   let(:options) { ['ZSH_AUTOSUGGEST_STRATEGY=match_prev_cmd'] }
 
+  let(:history) { [
+    'echo what',
+    'ls foo',
+    'echo what',
+    'ls bar',
+    'ls baz',
+    'echo what'
+  ] }
+
   it 'suggests the last matching history entry after the previous command' do
-    with_history(
-      'echo what',
-      'ls foo',
-      'echo what',
-      'ls bar',
-      'ls baz',
-      'echo what'
-    ) do
+    with_history(*history) do
       session.send_string('ls')
       wait_for { session.content }.to eq('ls bar')
     end
   end
 
+  context 'when ZSH_AUTOSUGGEST_HISTORY_IGNORE is set to a pattern' do
+    let(:options) { ['ZSH_AUTOSUGGEST_STRATEGY=match_prev_cmd', 'ZSH_AUTOSUGGEST_HISTORY_IGNORE="* bar"'] }
+
+    it 'does not make suggestions that match the pattern' do
+      with_history(*history) do
+        session.send_string('ls')
+        wait_for { session.content }.to eq('ls foo')
+      end
+    end
+  end
+
   include_examples 'special characters'
 end
diff --git a/src/strategies/completion.zsh b/src/strategies/completion.zsh
index dfbf6eb..4290f0c 100644
--- a/src/strategies/completion.zsh
+++ b/src/strategies/completion.zsh
@@ -96,6 +96,12 @@ _zsh_autosuggest_capture_completion_async() {
 }
 
 _zsh_autosuggest_strategy_completion() {
+	# Reset options to defaults and enable LOCAL_OPTIONS
+	emulate -L zsh
+
+	# Enable extended glob for completion ignore pattern
+	setopt EXTENDED_GLOB
+
 	typeset -g suggestion
 	local line REPLY
 
@@ -105,6 +111,9 @@ _zsh_autosuggest_strategy_completion() {
 	# Exit if we don't have zpty
 	zmodload zsh/zpty 2>/dev/null || return
 
+	# Exit if our search string matches the ignore pattern
+	[[ -n "$ZSH_AUTOSUGGEST_COMPLETION_IGNORE" ]] && [[ "$1" == $~ZSH_AUTOSUGGEST_COMPLETION_IGNORE ]] && return
+
 	# Zle will be inactive if we are in async mode
 	if zle; then
 		zpty $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME _zsh_autosuggest_capture_completion_sync
@@ -122,7 +131,7 @@ _zsh_autosuggest_strategy_completion() {
 		# versions of zsh (older than 5.3), we sometimes get extra bytes after
 		# the second null byte, so trim those off the end.
 		# See http://www.zsh.org/mla/workers/2015/msg03290.html
-		suggestion="${${line#*$'\0'}%$'\0'*}"
+		suggestion="${${(@0)line}[2]}"
 	} always {
 		# Destroy the pty
 		zpty -d $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME
diff --git a/src/strategies/history.zsh b/src/strategies/history.zsh
index a2755a5..0672a13 100644
--- a/src/strategies/history.zsh
+++ b/src/strategies/history.zsh
@@ -10,7 +10,7 @@ _zsh_autosuggest_strategy_history() {
 	# Reset options to defaults and enable LOCAL_OPTIONS
 	emulate -L zsh
 
-	# Enable globbing flags so that we can use (#m)
+	# Enable globbing flags so that we can use (#m) and (x~y) glob operator
 	setopt EXTENDED_GLOB
 
 	# Escape backslashes and all of the glob operators so we can use
@@ -19,7 +19,14 @@ _zsh_autosuggest_strategy_history() {
 	# TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
 	local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
 
-	# Get the history items that match
+	# Get the history items that match the prefix, excluding those that match
+	# the ignore pattern
+	local pattern="$prefix*"
+	if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
+		pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
+	fi
+
+	# Give the first history item matching the pattern as the suggestion
 	# - (r) subscript flag makes the pattern match on values
-	typeset -g suggestion="${history[(r)${prefix}*]}"
+	typeset -g suggestion="${history[(r)$pattern]}"
 }
diff --git a/src/strategies/match_prev_cmd.zsh b/src/strategies/match_prev_cmd.zsh
index f76d3c1..b709783 100644
--- a/src/strategies/match_prev_cmd.zsh
+++ b/src/strategies/match_prev_cmd.zsh
@@ -24,16 +24,23 @@ _zsh_autosuggest_strategy_match_prev_cmd() {
 	# Reset options to defaults and enable LOCAL_OPTIONS
 	emulate -L zsh
 
-	# Enable globbing flags so that we can use (#m)
+	# Enable globbing flags so that we can use (#m) and (x~y) glob operator
 	setopt EXTENDED_GLOB
 
 	# TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
 	local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
 
+	# Get the history items that match the prefix, excluding those that match
+	# the ignore pattern
+	local pattern="$prefix*"
+	if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
+		pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
+	fi
+
 	# Get all history event numbers that correspond to history
-	# entries that match pattern $prefix*
+	# entries that match the pattern
 	local history_match_keys
-	history_match_keys=(${(k)history[(R)$prefix*]})
+	history_match_keys=(${(k)history[(R)$~pattern]})
 
 	# By default we use the first history number (most recent history entry)
 	local histkey="${history_match_keys[1]}"
diff --git a/src/widgets.zsh b/src/widgets.zsh
index 242d502..8f09792 100644
--- a/src/widgets.zsh
+++ b/src/widgets.zsh
@@ -56,7 +56,7 @@ _zsh_autosuggest_modify() {
 	emulate -L zsh
 
 	# Don't fetch a new suggestion if there's more input to be read immediately
-	if (( $PENDING > 0 )) || (( $KEYS_QUEUED_COUNT > 0 )); then
+	if (( $PENDING > 0 || $KEYS_QUEUED_COUNT > 0 )); then
 		POSTDISPLAY="$orig_postdisplay"
 		return $retval
 	fi
@@ -119,7 +119,7 @@ _zsh_autosuggest_suggest() {
 
 # Accept the entire suggestion
 _zsh_autosuggest_accept() {
-	local -i max_cursor_pos=$#BUFFER
+	local -i retval max_cursor_pos=$#BUFFER
 
 	# When vicmd keymap is active, the cursor can't move all the way
 	# to the end of the buffer
@@ -127,23 +127,33 @@ _zsh_autosuggest_accept() {
 		max_cursor_pos=$((max_cursor_pos - 1))
 	fi
 
-	# Only accept if the cursor is at the end of the buffer
-	if [[ $CURSOR = $max_cursor_pos ]]; then
-		# Add the suggestion to the buffer
-		BUFFER="$BUFFER$POSTDISPLAY"
-
-		# Remove the suggestion
-		unset POSTDISPLAY
-
-		# Move the cursor to the end of the buffer
-		if [[ "$KEYMAP" = "vicmd" ]]; then
-			CURSOR=$(($#BUFFER - 1))
-		else
-			CURSOR=$#BUFFER
-		fi
+	# If we're not in a valid state to accept a suggestion, just run the
+	# original widget and bail out
+	if (( $CURSOR != $max_cursor_pos || !$#POSTDISPLAY )); then
+		_zsh_autosuggest_invoke_original_widget $@
+		return
 	fi
 
+	# Only accept if the cursor is at the end of the buffer
+	# Add the suggestion to the buffer
+	BUFFER="$BUFFER$POSTDISPLAY"
+
+	# Remove the suggestion
+	unset POSTDISPLAY
+
+	# Run the original widget before manually moving the cursor so that the
+	# cursor movement doesn't make the widget do something unexpected
 	_zsh_autosuggest_invoke_original_widget $@
+	retval=$?
+
+	# Move the cursor to the end of the buffer
+	if [[ "$KEYMAP" = "vicmd" ]]; then
+		CURSOR=$(($#BUFFER - 1))
+	else
+		CURSOR=$#BUFFER
+	fi
+
+	return $retval
 }
 
 # Accept the entire suggestion and execute it
diff --git a/zsh-autosuggestions.zsh b/zsh-autosuggestions.zsh
index 872b647..a8ef6c4 100644
--- a/zsh-autosuggestions.zsh
+++ b/zsh-autosuggestions.zsh
@@ -1,6 +1,6 @@
 # Fish-like fast/unobtrusive autosuggestions for zsh.
 # https://github.com/zsh-users/zsh-autosuggestions
-# v0.6.3
+# v0.6.4
 # Copyright (c) 2013 Thiago de Arruda
 # Copyright (c) 2016-2019 Eric Freese
 # 
@@ -318,7 +318,7 @@ _zsh_autosuggest_modify() {
 	emulate -L zsh
 
 	# Don't fetch a new suggestion if there's more input to be read immediately
-	if (( $PENDING > 0 )) || (( $KEYS_QUEUED_COUNT > 0 )); then
+	if (( $PENDING > 0 || $KEYS_QUEUED_COUNT > 0 )); then
 		POSTDISPLAY="$orig_postdisplay"
 		return $retval
 	fi
@@ -381,7 +381,7 @@ _zsh_autosuggest_suggest() {
 
 # Accept the entire suggestion
 _zsh_autosuggest_accept() {
-	local -i max_cursor_pos=$#BUFFER
+	local -i retval max_cursor_pos=$#BUFFER
 
 	# When vicmd keymap is active, the cursor can't move all the way
 	# to the end of the buffer
@@ -389,23 +389,33 @@ _zsh_autosuggest_accept() {
 		max_cursor_pos=$((max_cursor_pos - 1))
 	fi
 
-	# Only accept if the cursor is at the end of the buffer
-	if [[ $CURSOR = $max_cursor_pos ]]; then
-		# Add the suggestion to the buffer
-		BUFFER="$BUFFER$POSTDISPLAY"
-
-		# Remove the suggestion
-		unset POSTDISPLAY
-
-		# Move the cursor to the end of the buffer
-		if [[ "$KEYMAP" = "vicmd" ]]; then
-			CURSOR=$(($#BUFFER - 1))
-		else
-			CURSOR=$#BUFFER
-		fi
+	# If we're not in a valid state to accept a suggestion, just run the
+	# original widget and bail out
+	if (( $CURSOR != $max_cursor_pos || !$#POSTDISPLAY )); then
+		_zsh_autosuggest_invoke_original_widget $@
+		return
 	fi
 
+	# Only accept if the cursor is at the end of the buffer
+	# Add the suggestion to the buffer
+	BUFFER="$BUFFER$POSTDISPLAY"
+
+	# Remove the suggestion
+	unset POSTDISPLAY
+
+	# Run the original widget before manually moving the cursor so that the
+	# cursor movement doesn't make the widget do something unexpected
 	_zsh_autosuggest_invoke_original_widget $@
+	retval=$?
+
+	# Move the cursor to the end of the buffer
+	if [[ "$KEYMAP" = "vicmd" ]]; then
+		CURSOR=$(($#BUFFER - 1))
+	else
+		CURSOR=$#BUFFER
+	fi
+
+	return $retval
 }
 
 # Accept the entire suggestion and execute it
@@ -582,6 +592,12 @@ _zsh_autosuggest_capture_completion_async() {
 }
 
 _zsh_autosuggest_strategy_completion() {
+	# Reset options to defaults and enable LOCAL_OPTIONS
+	emulate -L zsh
+
+	# Enable extended glob for completion ignore pattern
+	setopt EXTENDED_GLOB
+
 	typeset -g suggestion
 	local line REPLY
 
@@ -591,6 +607,9 @@ _zsh_autosuggest_strategy_completion() {
 	# Exit if we don't have zpty
 	zmodload zsh/zpty 2>/dev/null || return
 
+	# Exit if our search string matches the ignore pattern
+	[[ -n "$ZSH_AUTOSUGGEST_COMPLETION_IGNORE" ]] && [[ "$1" == $~ZSH_AUTOSUGGEST_COMPLETION_IGNORE ]] && return
+
 	# Zle will be inactive if we are in async mode
 	if zle; then
 		zpty $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME _zsh_autosuggest_capture_completion_sync
@@ -608,7 +627,7 @@ _zsh_autosuggest_strategy_completion() {
 		# versions of zsh (older than 5.3), we sometimes get extra bytes after
 		# the second null byte, so trim those off the end.
 		# See http://www.zsh.org/mla/workers/2015/msg03290.html
-		suggestion="${${line#*$'\0'}%$'\0'*}"
+		suggestion="${${(@0)line}[2]}"
 	} always {
 		# Destroy the pty
 		zpty -d $ZSH_AUTOSUGGEST_COMPLETIONS_PTY_NAME
@@ -626,7 +645,7 @@ _zsh_autosuggest_strategy_history() {
 	# Reset options to defaults and enable LOCAL_OPTIONS
 	emulate -L zsh
 
-	# Enable globbing flags so that we can use (#m)
+	# Enable globbing flags so that we can use (#m) and (x~y) glob operator
 	setopt EXTENDED_GLOB
 
 	# Escape backslashes and all of the glob operators so we can use
@@ -635,9 +654,16 @@ _zsh_autosuggest_strategy_history() {
 	# TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
 	local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
 
-	# Get the history items that match
+	# Get the history items that match the prefix, excluding those that match
+	# the ignore pattern
+	local pattern="$prefix*"
+	if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
+		pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
+	fi
+
+	# Give the first history item matching the pattern as the suggestion
 	# - (r) subscript flag makes the pattern match on values
-	typeset -g suggestion="${history[(r)${prefix}*]}"
+	typeset -g suggestion="${history[(r)$pattern]}"
 }
 
 #--------------------------------------------------------------------#
@@ -665,16 +691,23 @@ _zsh_autosuggest_strategy_match_prev_cmd() {
 	# Reset options to defaults and enable LOCAL_OPTIONS
 	emulate -L zsh
 
-	# Enable globbing flags so that we can use (#m)
+	# Enable globbing flags so that we can use (#m) and (x~y) glob operator
 	setopt EXTENDED_GLOB
 
 	# TODO: Use (b) flag when we can drop support for zsh older than v5.0.8
 	local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
 
+	# Get the history items that match the prefix, excluding those that match
+	# the ignore pattern
+	local pattern="$prefix*"
+	if [[ -n $ZSH_AUTOSUGGEST_HISTORY_IGNORE ]]; then
+		pattern="($pattern)~($ZSH_AUTOSUGGEST_HISTORY_IGNORE)"
+	fi
+
 	# Get all history event numbers that correspond to history
-	# entries that match pattern $prefix*
+	# entries that match the pattern
 	local history_match_keys
-	history_match_keys=(${(k)history[(R)$prefix*]})
+	history_match_keys=(${(k)history[(R)$~pattern]})
 
 	# By default we use the first history number (most recent history entry)
 	local histkey="${history_match_keys[1]}"