このブログでも利用しているブログツール「WordPress」がバージョン4.8.1に自動アップデートされました。
今回は29個のバグを修正とのことです。

リリースノート
Version 4.8.1 « WordPress Codex

Summary

From the WordPress 4.8.1 release post: WordPress 4.8.1 contains 29 maintenance fixes and enhancements to the 4.8 release series, chief among them are fixes to the rich Text widget and the introduction of the Custom HTML widget.

Administration

#40982 – Permalink Settings: custom structure field keyboard trap

Build/Test Tools

#41327 – Bump Akismet External – 4.9 Edition

Comments

#40975 – ‘Empty Spam’ and ‘Empty Trash’ comment buttons not displayed on mobile

Customize

#40978 – Customizer Panel Footer border missing
#40981 – Customizer: Menus: it is far too easy to mistakenly delete a menu because the “Delete Menu” link and the “Add Items” button are too close together
#41158 – Increase tinymce panel z-index
#41410 – Set `’filter’ => ‘content’` on starter content “business info” widget

Embeds

#41019 – oEmbed: Update VideoPress oEmbed URL
#41048 – `WP_oEmbed_Controller::get_proxy_item()` should remove `_wpnonce` from cached `$args`
#41299 – oEmbed proxy fails to forward maxwidth and maxheight params

General

#41056 – WP-API JS Client: Settings is incorrectly registered as a collection

Media

#41231 – media-views.js: Cannot read .length of undefined (this.controller.$uploaderToggler.length)

REST API

#38964 – Add filter to allow modifying response *after* embedded data is added
#40886 – REST API: PUT requests fail on Nginx servers when fancy permalinks aren’t enabled

Taxonomy

#41010 – wp_get_object_terms() returns duplicate terms if more than one taxonomy is given in args

TinyMCE

#41408 – TinyMCE: Images with link and caption look “broken” when selected

Widgets

#40907 – Introduce widget dedicated for HTML code
#40935 – Facebook Video Works On Preview But Not On Theme
#40951 – New Text Widget – Switching Between Visual/Text Editor Strips Out Code
#40960 – Widgets: The Text widget should respect the “Disable the visual editor when writing” setting
#40972 – TinyMCE editor in Text widget does not have RTL contents
#40974 – Updated text widget do not save text (when using paste)
#40977 – Widgets: Query param for `loop` added for non-hosted external videos
#40986 – Widgets: text widget and media widgets cannot be edited in accessibility mode
#41021 – Text widget does not show Title field or TinyMCE editor
#41361 – Text widget can raise JS error if customize-base is enqueued on widgets admin screen
#41386 – Text Widget – Wording – Legacy Mode 4.8.1 beta
#41392 – Theme styles for Text widget do not apply to Custom HTML widget
#41394 – Text widget: Rename legacy mode to visual mode and improve back-compat for widget_text filters

　
　
WordPressではマイナーバージョンアップは自動でアップデートされますが、この後、日本語版のバージョン4.8.1-jaには手動でアップデートすることになります。
もっとも、日本語版でなくてもまったく不便はありません。
しーゆー。