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2009年6月10日， WordPress zh-cn:版本 2.8 发布了, 以著名的小号手和声乐家 Chet Baker 的名字命名。关于此次增强和漏洞修复的版本多的更多信息，访问 Development Blog Announcement ，并查看 2.8的更新记录.
对于zh-cn:版本 2.8来说, 数据库版本 (db_version in wp_options) 更改到 11548, Trac 校订为 11549
亮点
- 新的拖放挂件管理界面和 新的挂件接口
- 插件和主题编辑器中添加了语法高亮和函数查找功能
- 后台直接浏览主题并安装
- 允许控制台项目以多行排列
- 允许在屏幕选项中配置每页显示的文章、页面、评论的数目
- 支持自动调整夏令时和时区设置
- 支持 IIS 7.0 URL 重写组件
- 合并压缩了脚本文件，后台加载更快
新特性
用户特性
- 新的主题安装器
- 主题 和 插件 编辑器增加了代码高亮功能
- 主题 和 插件编辑器增加了函数查找功能
- Use "Custom Header" for menu text and revise Default theme to reflect change
- Separate Comments into a separate postbox, from Discussion postbox, on the Edit Post screen
- Make tags accessible without Javascript on the edit screen
- 把评论标记为垃圾时不再确认
- Don't notify post author of own comments
- Fix comment paging for static front page
- Allow the dashboard widgets to be arranged in up to four columns as set via the Screen Options tab
- Make titles into links in Dashboard Right Now module (this was in 2.7.1)
- Improved Admin icons (grey-to-transparent shadows)
- Update Blue Admin Color Scheme
- Press This improvements UI, quoting fixes, plus ability for Contributors to use Press This
- Add a Cancel Upload button and a Delete link to Administration > Media > Add New
- Add column "Rating" in Administration > Links > Edit
- Improve installer to help people entering wrong email addresses
- Improved Widget user interface
- Allow editing of all plugin files (Ticket 6732)
- Improved Plugin search (this was in 2.7.1) on Administration > Plugins > Add New
- Per Page option for plugins
- Move "Install a plugin in .zip format" to new Upload tab under Administration > Plugins > Add New
- Show absolute date instead of relative date for scheduled posts
- Fix tags suggest for post quick edit and bulk edit
- Permalink editor changes and fix for pages
- Autosave post/page when pressing Control/Command+S
- Add toggle all button to the Gallery tab in the uploader
- Support more than one gallery on the same page
- Add per page option to Screen Options for comments, posts, pages, media, categories, and tags
- Overhaul of LiveJournal importer (also add define WP_IMPORTING)
- Import category descriptions for Administration > Tools > Import > WordPress
- Show Tools menu for all users so they can access Turbo
- Check for new version when visiting Administration > Tools > Upgrade
- In upgrade process, provide better explanation for database upgrade message
- Fix most popular link category list
- Add description field for Tags in Administration > Posts > Tags
- WAI-ARIA landmark roles to added to WordPress Default theme
- "Choose a city in the same timezone as you" for Timezone in Administration > Settings > General
- Remove My Hacks option from Administration > Settings > Miscellaneous
- Hide email addresses from low privilege users on Administration > Comments
- Allow case-insensitive logins
- Login and Registration pages noindex followed
- Give login screen proper iPhone viewport
- Enforce unique email addresses in Add/Edit users
- Make user_nicenames unique during registration
- Add "Send this password to the new user by email" option to Administration > Users > Add New
- Don't set user's Website url to http:// in Administration > Users > Add New
- Add password strength meter to Add User and Edit User
- Hide things that need to be available to screen readers via offscreen positioning
- Use invisible class for hiding labels and legends
- Use a semantic class name for text targeted to screen readers
开发, 主题, 插件
- Improved database performance
- Drop post_category column from wp_posts table, and link_category column from wp_links schemas
- Fix delete statements to ensure data integrity when innodb and foreign keys are used
- Enforce consistent ID types to allow for foreign keys to be defined between tables
- Add Sticky to list of post states
- Add a filter to the post states list
- Introduction and widespread use of transient and related filters
- Add filters so AIM, Yahoo, and Jabber IM labels, in user profile, can be changed
- Add hook "after_db_upgrade"
- Add hooks for the Users, Categories, Link Categories, Tags and Comments table columns
- HTTP API updates and fixes
- Add support for blocking all outbound HTTP requests
- Updated List of HTTP status codes (Ticket 9297)
- Use SimplePie for widget and dashboard feeds
- Switch to pomo lib. Support gettext contexts. Deprecate long form functions
- TinyMCE 3.2.4.1
- Use Jcrop 0.9.8 for cropping
- Update pclzip to 2.8
- Update PHPMailer to 2.0.4
- Update SWFUpload to 2.2.0.1
- Improved performance for script loading
- Improved archive and calendar queries
- Cron spawning improvements
- Timezone enhancements for PHP 5
- Add WP_Widget class and move native widgets into WP_Widget
- Allow other taxonomies (e.g. post categories) to be used with wp_tag_cloud (Changeset 10554)
- Add echo argument to wp_tag_cloud()
- Allow a plugin to control how many posts are displayed on edit pages
- Add "style" and "html" arguments to wp_list_authors (Ticket 4420)
- Add "exclude_tree" argument to wp_list_categories and make exclude behave like exclude_tree when hierarchical is specified--this was actually a 2.7.1 change (Ticket 8614)
- New Template Tag, the_modified_author (Ticket 9154)
- Enhanced support for custom taxonomies
- Put page title before blog name in admin title (Ticket 9028)
- Use https://api.wordpress.org/secret-key/1.1/ for the WordPress.org secret-key service
- Various phpDoc updates
- Refactor filters to avoid potential XSS attacks
- XMLRPC improvements
- Improved mysql2date coding
- Make authentication more pluggable
- Switch to using the ID when calling get_avatar internally to support caching plugins
- Allow plugins to provide a canonical redirect_url even if WordPress does not provide its own
- Drafts have post_date populated now, so look for a zeroed out post_date_gmt to determine non-scheduled nature
- Fixes to query_posts (obey post_type, drop orderby=category, use group by for meta key queries, remove meta_value from selected fields)
- New orderby=none parameter for use with query_posts
- Allow a plugin to filter the classes applied in wp_list_pages()
- Functions (get_adjacent_post_rel_link() and adjacent_post_rel_link()) to display relational links for adjacent posts in the head (Ticket 8703)
- Add the sticky post grey background to the default theme
- Proxy support
- Let a plugin filter the expanded capabilities returned by map_meta_cap
- Allow the update period to be filtered in RSS/RDF feeds
- Store field types in wpdb object
- Add tag description functions tag_description and term_description
- Add page class to get_body_class()
- Deprecate get_catname()
- Use comments_open() and pings_open() in WordPress Default and Classic themes
- Add wp_trim_excerpt() filter
- Consolidate plugin/theme/core upgrade/install functions
- Add page-id-x class to body for pages
- Return empty list in wp_list_bookmarks() if requested bookmark category does not exist
- Allow menu reordering via plugin
- Add hook for updating user profile
- Add redirect argument to wp_loginout
- Add wp_lostpassword_url (Ticket 9932)
- Add get_the_author_meta() and the_author_meta() functions
- Deprecate the_author_ID, the_author_login, the_author_firstname, the_author_lastname, the_author_nickname, the_author_email, the_author_url, the_author_aim, the_author_yim, the_author_mns, the_author_description and all their "get_*()" functions. (The full list at
wp-includes/deprecated.php)
- Let plugins use screen layout columns
- Add labels to titles and text inputs
- Add hook for adding info to plugin update message
- Don't do core version check from front page loads
- Allow a plugin to vary the comment cookie lifetime (or even remove the cookies altogether)
- Allow plugin to replace just the default help while preserving the contextual help
- New escaping naming convention Ticket 9650
- Deprecate wp_specialchars() in favor of esc_html(). Encode quotes for esc_html() as in esc_attr(), to improve plugin security (ref. Development Updates)
- Deprecate sanitize_url() and clean_url() in favor of esc_url_raw() and esc_url() (ref. Development Updates)
- Add number/offset arguments to get_pages() (same parameters can be used for wp_list_pages()
- Make login more pluggable
- Add
the_widget() function to output a generic widget anywhere in a template (Ticket 9701)
- Allow plugins to override tz support enable/disable
- Fix combining category and tag queries
- Support IIS 7.0 URL Rewrite Module
- Recognize Expression Web 2 as IIS
- Allow multiple search form templates
- Introduce sanitize_html_class() and use it to give categories, tags, users etc meaningful classnames where possible but fallback to the id if necessary (Ticket 8446)
- Allow a different role to be set for users when they are created in a call to wp_insert_user()
- Improve Filesystem method choice for 'direct'; introduce FS_METHOD constant
- Add a hook in print_footer_scripts as in print_head_scripts
- Add a comment_moderation_headers filter
- Move upload_dir filter to before directory is created, so plugins can have a better effect
- Pass name to sidebar, footer, and header get actions
- Upgrader improvements, including move curl to last position and fockopen to 2nd position due to higher compatibility
- Updated Trac
高级特性
JS 脚本加载器的改进
- jQuery 1.3.2
- Improvements to the script loader: allows plugins to queue scripts for the front end head and footer, adds hooks for server side caching of compressed scripts, adds support for ENFORCE_GZIP constant (deflate is used by default since it's faster)
- Load the minified versions of the scripts by default, define('SCRIPT_DEBUG', true); can be used to load the development versions
- Remove events from categories chechboxes in quick edit to speed up page unload
- Make simple form validation and ajax-add new categories compatible with jQuery 1.3.1
- Load farbtastic.js has to be loaded in the head
- Note: see Lester Chan's Loading Javascript in Footer blog and Andrew Ozz's Script Loader Updates blog
新的挂件接口
WP_Widget is a class that abstracts away much of the complexity involved in writing a widget, especially multi-widgets.
参见 zh-cn:挂件接口.
- Example plugin demonstrates menus with Dashboard, Posts, and Comments in the first menu group. The remaining menus follow in their usual order.
- When filtering the order array, any menus that are not mentioned in the array will be sorted after ones that are mentioned.
- Unmentioned menus are sorted in their usual order, relative to other unmentioned menus.
- Information extracted from Ryan Boren's comments on Trac Ticket 9652
Features That Didn't Make it into Version 2.8
These features didn't make it into Version 2.8 (or Version 2.7).
- Some default shortcodes, maybe the most popular 10 from WordPress.com
- oEmbed support, tied in with shortcodes
- Better UI for post revisions, maybe an optional field to say what changed in a version
- OAuth support
- GeoData for posts, comments, attachments, etc.
- Template tags to do everything the custom gallery on ma.tt does
- Menu editor
- Unbalanced tags across more and nextpage tags (Ticket 6297)
- Sitemaps by default
- Refresh of the importers (LiveJournal was refreshed)
- Gallery post_type
- Versioning of template edits
- Documentation links for functions used in currently edited template
- MPTT (Modified Preorder Tree Traversal) for hierarchies