diff --git a/docs/scripts/tags.js b/docs/scripts/tags.js
index 1d5d95712..3f449db54 100644
--- a/docs/scripts/tags.js
+++ b/docs/scripts/tags.js
@@ -19,5 +19,5 @@ hexo.extend.tag.register('note', (args, text) => {
 }, true)
 
 hexo.extend.tag.register('since', (args, text) => {
-  return `<p class="since">Added in: ${text.trim()}</p>`
+  return `<p class="since">${text.trim()}</p>`
 }, true)
diff --git a/docs/source/_data/sidebar.yml b/docs/source/_data/sidebar.yml
index 914ebea19..067adc729 100644
--- a/docs/source/_data/sidebar.yml
+++ b/docs/source/_data/sidebar.yml
@@ -65,6 +65,7 @@ filters:
   truncate: truncate.html
   truncatewords: truncatewords.html
   uniq: uniq.html
+  concat: concat.html
   upcase: upcase.html
   url_decode: url_decode.html
   url_encode: url_encode.html
diff --git a/docs/source/filters/concat.md b/docs/source/filters/concat.md
index e896b6d13..902b1c866 100644
--- a/docs/source/filters/concat.md
+++ b/docs/source/filters/concat.md
@@ -2,6 +2,8 @@
 title: concat
 ---
 
+{% since %}v2.0.0{% endsince %}
+
 Concatenates (joins together) multiple arrays. The resulting array contains all the items from the input arrays.
 
 Input
diff --git a/docs/source/filters/overview.md b/docs/source/filters/overview.md
index 7634b0277..3ecf6c10e 100644
--- a/docs/source/filters/overview.md
+++ b/docs/source/filters/overview.md
@@ -11,7 +11,7 @@ Categories | Filters
 Math | plus, minus, modulo, times, floor, ceil, round, divided_by, abs
 String | append, prepend, capitalize, upcase, downcase, strip, lstrip, rstrip, strip_newlines, split, replace, replace_first, remove, remove_first, truncate, truncatewords
 HTML/URI | escape, escape_once, url_encode, url_decode, strip_html, newline_to_br
-Array | slice, map, sort, sort_natural, uniq, where, first, last, join, reverse
+Array | slice, map, sort, sort_natural, uniq, where, first, last, join, reverse, concat
 Date | date
 
 [shopify/liquid]: https://github.com/Shopify/liquid
diff --git a/docs/source/tutorials/options.md b/docs/source/tutorials/options.md
index a57803b74..c42b8d364 100644
--- a/docs/source/tutorials/options.md
+++ b/docs/source/tutorials/options.md
@@ -75,7 +75,7 @@ it defaults to false.  For example, when set to true, a blank string would evalu
 
 **timezoneOffset** is used to specify a different timezone to output dates, your local timezone will be used if not specified. For example, set `timezoneOffset: 0` to output all dates in UTC/GMT 00:00.
 
-**preserveTimezones** is a boolean effects only literal timestamps. When set to `true`, all literal timestamps will remain the same when output. This is a parser option, so Date objects passed to LiquidJS as data will not be affected.
+**preserveTimezones** is a boolean effects only literal timestamps. When set to `true`, all literal timestamps will remain the same when output. This is a parser option, so Date objects passed to LiquidJS as data will not be affected. Note that `preserveTimezones` has a higher priority than `timezoneOffset`.
 
 ## Trimming
 
diff --git a/docs/source/zh-cn/filters/concat.md b/docs/source/zh-cn/filters/concat.md
index 4ee967b2b..376375039 100644
--- a/docs/source/zh-cn/filters/concat.md
+++ b/docs/source/zh-cn/filters/concat.md
@@ -2,7 +2,9 @@
 title: concat
 ---
 
-Concatenates (joins together) multiple arrays. The resulting array contains all the items from the input arrays.
+{% since %}v2.0.0{% endsince %}
+
+连接多个数组，返回的数组包含所有传入数组的元素。
 
 输入
 ```liquid
@@ -26,7 +28,7 @@ Concatenates (joins together) multiple arrays. The resulting array contains all
 - potatoes
 ```
 
-You can string together `concat` filters to join more than two arrays:
+可以链式地使用 `concat` 过滤器来连接多个数组：
 
 输入
 ```liquid
diff --git a/docs/source/zh-cn/tutorials/options.md b/docs/source/zh-cn/tutorials/options.md
index ad3469b75..25362e939 100644
--- a/docs/source/zh-cn/tutorials/options.md
+++ b/docs/source/zh-cn/tutorials/options.md
@@ -73,7 +73,7 @@ LiquidJS 把这个选项默认值设为 <code>true</code> 以兼容于 shopify/l
 
 **timezoneOffset** 用来指定一个和你当地时区不同的时区，所有日期和时间输出时都转换到这个指定的时区。例如设置 `timezoneOffset: 0` 将会把所有日期按照 UTC/GMT 00:00 来输出。
 
-**preserveTimezones** 是一个布尔值，只影响时间戳字面量。当设置为 `true` 时，所有字面量的时间戳字符串会在输出时保持原状，即不论输入时采取怎样的时区，输出时仍然采用那一时区（和 Shopify Liquid 的行为一致）。注意这是一个解析器参数，渲染时传入的数据中的日期的输出不会受此参数影响。
+**preserveTimezones** 是一个布尔值，只影响时间戳字面量。当设置为 `true` 时，所有字面量的时间戳字符串会在输出时保持原状，即不论输入时采取怎样的时区，输出时仍然采用那一时区（和 Shopify Liquid 的行为一致）。注意这是一个解析器参数，渲染时传入的数据中的日期的输出不会受此参数影响。注意 `preserveTimezones` 比 `timezoneOffset` 的优先级更高。
 
 
 ## 换行和缩进
diff --git a/docs/themes/navy/source/css/_partial/page.styl b/docs/themes/navy/source/css/_partial/page.styl
index 169948231..e9cb28f8a 100644
--- a/docs/themes/navy/source/css/_partial/page.styl
+++ b/docs/themes/navy/source/css/_partial/page.styl
@@ -196,6 +196,8 @@ note-warn = hsl(0, 100%, 50%)
   .since
     margin-top: 0;
     font-style: italic;
+  .since::before
+    content: "Added in: "
   .note-title
     margin: 1em 0 0.5em
     display: block
@@ -249,4 +251,7 @@ $article-footer-link
   right: 0
 
 .article-footer-updated
-  font-size: 0.9em
\ No newline at end of file
+  font-size: 0.9em
+
+[lang="zh-cn"] .since::before
+  content: "支持版本："
\ No newline at end of file