diff --git a/autoload/quickui/context.vim b/autoload/quickui/context.vim
index c358dbf..314afa9 100644
--- a/autoload/quickui/context.vim
+++ b/autoload/quickui/context.vim
@@ -513,7 +513,7 @@ function! s:nvim_create_context(textlist, opts)
 		let opts.row = pos[0] - 1
 		let opts.col = pos[1] - 1
 	endif
-	if has('nvim-0.5.0')
+	if has('nvim-0.6.0')
 		let opts.noautocmd = 1
 	endif
 	let winid = nvim_open_win(bid, 0, opts)
diff --git a/autoload/quickui/input.vim b/autoload/quickui/input.vim
index 108cd52..074c865 100644
--- a/autoload/quickui/input.vim
+++ b/autoload/quickui/input.vim
@@ -149,7 +149,7 @@ function! s:nvim_create_input(prompt, opts)
 	let opts.height = hwnd.h
 	let opts.row = hwnd.opts.row
 	let opts.col = hwnd.opts.col
-	if has('nvim-0.5.0')
+	if has('nvim-0.6.0')
 		let opts.noautocmd = 1
 	endif
 	let winid = nvim_open_win(hwnd.bid, 0, opts)
@@ -163,7 +163,7 @@ function! s:nvim_create_input(prompt, opts)
 		let op.row = hwnd.opts.row - 2
 		let op.col = hwnd.opts.col - 2
 		let bordercolor = hwnd.opts.bordercolor
-		if has('nvim-0.5.0')
+		if has('nvim-0.6.0')
 			let op.noautocmd = 1
 		endif
 		let background = nvim_open_win(nbid, 0, op)
diff --git a/autoload/quickui/listbox.vim b/autoload/quickui/listbox.vim
index e3a7a34..d8a1a9d 100644
--- a/autoload/quickui/listbox.vim
+++ b/autoload/quickui/listbox.vim
@@ -506,7 +506,7 @@ function! s:nvim_create_listbox(textlist, opts)
 		let opts.row += 1
 		let opts.col += 1
 	endif
-	if has('nvim-0.5.0')
+	if has('nvim-0.6.0')
 		let opts.noautocmd = 1
 	endif
 	let winid = nvim_open_win(bid, 0, opts)
@@ -521,7 +521,7 @@ function! s:nvim_create_listbox(textlist, opts)
 		let op.row = opts.row - 1
 		let op.col = opts.col - 1
 		let bordercolor = get(a:opts, 'bordercolor', 'QuickBorder')
-		if has('nvim-0.5.0')
+		if has('nvim-0.6.0')
 			let op.noautocmd = 1
 		endif
 		let background = nvim_open_win(nbid, 0, op)
diff --git a/autoload/quickui/menu.vim b/autoload/quickui/menu.vim
index cf00ad4..adce503 100644
--- a/autoload/quickui/menu.vim
+++ b/autoload/quickui/menu.vim
@@ -711,7 +711,7 @@ function! quickui#menu#nvim_open_menu(opts)
 	let opts.row = 0
 	let opts.relative = 'editor'
 	let s:cmenu.bufnr = bid
-	if has('nvim-0.5.0')
+	if has('nvim-0.6.0')
 		let opts.noautocmd = 1
 	endif
 	let winid = nvim_open_win(bid, 0, opts)
diff --git a/autoload/quickui/preview.vim b/autoload/quickui/preview.vim
index 744af41..a88f03c 100644
--- a/autoload/quickui/preview.vim
+++ b/autoload/quickui/preview.vim
@@ -126,7 +126,7 @@ function! quickui#preview#display(content, opts)
 		else
 			let bid = quickui#core#scratch_buffer('preview', source)
 		endif
-		if has('nvim-0.5.0')
+		if has('nvim-0.6.0')
 			let opts.noautocmd = 1
 		endif
 		let winid = nvim_open_win(bid, 0, opts)
@@ -144,7 +144,7 @@ function! quickui#preview#display(content, opts)
 			let op.row = pos.row - 1
 			let op.col = pos.col - 1
 			let bordercolor = get(a:opts, 'bordercolor', color)
-			if has('nvim-0.5.0')
+			if has('nvim-0.6.0')
 				let op.noautocmd = 1
 			endif
 			let background = nvim_open_win(nbid, 0, op)
diff --git a/autoload/quickui/terminal.vim b/autoload/quickui/terminal.vim
index af2ae52..31ac400 100644
--- a/autoload/quickui/terminal.vim
+++ b/autoload/quickui/terminal.vim
@@ -86,7 +86,7 @@ function! quickui#terminal#create(cmd, opts)
 		let opts.height = h
 		let opts.row = hwnd.opts.line - 1 + ((border > 0)? 1 : 0)
 		let opts.col = hwnd.opts.col - 1 + ((border > 0)? 1 : 0)
-		if has('nvim-0.5.0')
+		if has('nvim-0.6.0')
 			let opts.noautocmd = 1
 		endif
 		let winid = nvim_open_win(bid, 1, opts)
@@ -109,7 +109,7 @@ function! quickui#terminal#create(cmd, opts)
 			let pos = nvim_win_get_config(winid)
 			let op.row = hwnd.opts.line - 1
 			let op.col = hwnd.opts.col - 1
-			if has('nvim-0.5.0')
+			if has('nvim-0.6.0')
 				let op.noautocmd = 1
 			endif
 			let background = nvim_open_win(nbid, 0, op)
diff --git a/autoload/quickui/textbox.vim b/autoload/quickui/textbox.vim
index 146636a..7378af8 100644
--- a/autoload/quickui/textbox.vim
+++ b/autoload/quickui/textbox.vim
@@ -222,7 +222,7 @@ function! s:nvim_create_textbox(textlist, opts)
 		let opts.row += 1
 		let opts.col += 1
 	endif
-	if has('nvim-0.5.0')
+	if has('nvim-0.6.0')
 		let opts.noautocmd = 1
 	endif
 	let winid = nvim_open_win(bid, 0, opts)
@@ -248,7 +248,7 @@ function! s:nvim_create_textbox(textlist, opts)
 		let op.row = pos.row - 1
 		let op.col = pos.col - 1
 		let bordercolor = get(a:opts, 'bordercolor', 'QuickBorder')
-		if has('nvim-0.5.0')
+		if has('nvim-0.6.0')
 			let op.noautocmd = 1
 		endif
 		let background = nvim_open_win(nbid, 0, op)
diff --git a/autoload/quickui/utils.vim b/autoload/quickui/utils.vim
index b63ad98..7486583 100644
--- a/autoload/quickui/utils.vim
+++ b/autoload/quickui/utils.vim
@@ -434,18 +434,6 @@ function! quickui#utils#get_cursor(winid)
 endfunc
 
 
-"----------------------------------------------------------------------
-" first line to show in window.
-"----------------------------------------------------------------------
-function! quickui#utils#set_firstline(winid, line)
-	if g:quickui#core#has_nvim == 0
-		call popup_setoptions(a:winid, {'firstline': a:line})
-	else
-		call nvim_win_set_cursor(a:winid, [a:line, 0])
-	endif
-endfunc
-
-
 "----------------------------------------------------------------------
 " get topline in current window
 "----------------------------------------------------------------------