Redmine 2.5.2 和 2.4.6 发布，都是维护版本，包括许多 bug 修复，Rails 已升级到 3.2.19 版本。主要更新内容如下：
Redmine 2.5.2：
Defect #3483: Relative url for source links in notifications Defect #16415: Users get e-mail notification twice, if they are watchers and assignees at the same time. Defect #16519: Generating a spent time report on a list type custom field with multiple values causes an invalid SQL error Defect #16564: Repository identifiers can be reserved words Defect #16619: Mailer.token_for generates invalid message_id when using from address with full name Defect #16655: start_date not set despite settings[default_issue_start_date_to_creation_date] being set. Defect #16668: Redmine links broken when object name contains special characters Defect #16669: Markdown formatter should use the :no_intra_emphasis extension Defect #16708: Form is submitted when swithing tab Defect #16739: custom_fields.json only returns single tracker instead of array of trackers Defect #16747: Remove useless settings when editing a query from the gantt Defect #16755: Field set as read-only still available in the issues list context menu Defect #16795: Member#destroy triggers after_destroy callbacks twice Defect #16798: Custom field - list type - checkboxes - unchecking all - does not save Defect #16926: Custom field referencing deleted value trigger an error on display Defect #16989: Inline images in email does not appear when thumbnail macro is used. Defect #17003: Option to display bool custom fields as a single checkbox Feature #3177: Add "Check for updates" functionality to installed plugins Feature #16194: Ruby 2.1 support Patch #16566: French "text_git_repository_note" translation Patch #16700: Blank content type for attachments attached via Ajax file upload Patch #16710: Support for the 1.x versions of mime-types gem Patch #16781: Crash in markdown formatter causes ruby process to end Patch #17166: Japanese translation update (plugin update check) Patch #17301: Czech plugin strings
Redmine 2.4.6： Defect #13932: File upload does not work with Safari Defect #16467: back_url redirection does not work for '/' Defect #16511: Potentiel data leak in "Invalid form authenticity token" error screen Defect #16530: back_url redirection work for non sub uri Defect #16711: Non-ascii attachment file name get corrupted in IE11 Defect #17151: File upload broken on Chrome 36 Defect #17235: use test_email report can't modify frozen String Defect #17391: Upgrade to Rails 3.2.19 Patch #17206: Fix Invalid CSS on Error-Pages
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Redmine 是一个开源的、基于Web的项目管理和缺陷跟踪工具。它用日历和甘特图辅助项目及进度可视化显示。同时它又支持多项目管理。Redmine是一个自由开放 源码软件解决方案，它提供集成的项目管理功能，问题跟踪，并为多个版本控制选项的支持。
虽说像IBM Rational Team Concert的商业项目调查工具已经很强大了，但想坚持一个自由和开放源码的解决方案，可能会发现Redmine是一个有用的Scrum和敏捷的选择。 由于Redmine的设计受到Rrac的较大影响，所以它们的软件包有很多相似的特征。
Redmine建立在Ruby on Rails的框架之上，支持跨平台和多种数据库。
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