Redmine

Thank you for translating so many strings. I do appreciate your work.

I suggest the following changes against the translations. What do you think?

• error_can_not_delete_auth_source: Change "此身份验证模式正在使用，不能删除。" to "此认证模式正在使用，不能删除。". It is because field_auth_source is already translated as "认证模式"
• text_login_required_html: Maybe "它们" is more appropriate than "他们" for this context？（sorry if "他们" is good. 我的中文水平很低)
• error_spent_on_future_date, error_not_allowed_to_log_time_for_other_users, permission_log_time_for_other_users, permission_import_time_entries, label_import_time_entries: Use "工时" instead of "时间" because the existing translations uses "工时" for "spent time" or "time entry"
• text_role_no_workflow, text_status_no_workflow: Use "工作流程" instead of "工作流" because the existing translations uses "工作流程" for "workflow"
• label_open_trackers_description, text_select_apply_tracker: Use "跟踪标签" instead of "追踪" because the existing translations uses "跟踪标签"
• label_updated_issues: The English text is note "Update issue" but "Updated issue". Do you think "更新问题" is OK? How about "更新的问题"?
• text_avatar_server_config_html: "头像服务" is better than "角色服务". See the translation of setting_gravatar_enabled and setting_gravatar_default, and see https://baike.baidu.com/item/Gravatar
• label_issue_history_notes: Use "注释" instead of "说明" because field_notes is translated as "说明"
• label_password_char_class_digits: Use "数字" instead of "位数" because must_contain_digits uses "数字".

Setting the target version to 4.2.0.
That means available?

I agree. Just better Chinese translation.