经过技术预览版，大家应该可以看到IPB2.1 的强大功能。但是上一个版本毕竟是技术预览，功能有所限制。现在IPS官方推出真正的外部第一测试版Beta2供客户测试。官方版本号：
Invision Power Board v2.1 BETA 2 © 2005 IPS, Inc.
官方原文：
Invision Power Services is pleased to announce the release of Invision Power Board BETA 2

OVERVIEW

Invision Power Board BETA 2 is the first full, un-encoded release and is available as a "Development" release in your client center (which is near the bottom of the download manager after logging in). IPB 2.1 has been totally re-factored to increase efficiency and improve the OOP (object orientated programming) engine which now allows seamless integration with our forthcoming CMS product.


IPB 2.1's new features high-lights include:
ACP Permission Restrictions
Restrict your administrators to certain tabs, features and tasks!
Rich Text (WYSIWYG) Editor
Allow your members to easily format their posts, signatures and personal messages.
RSS (Really Simple Syndication) Import
Import RSS content from all over the 'net as new topics in any forum you choose.
RSS (Really Simple Syndication) Export
Allow others to syndicate your content by setting up exclusive RSS export streams from forums of your choice.
Multiple Question Polls
Create new polls in our easy to use interface. Set different questions for multiple question polls.
Member's Display Name
Optionally allow your members to choose their own display name which is separate from their log-in username, and change it as often as you allow.
Components Framework
Download pre-written components and install them with a few clicks. Create new functionality without needing to
touch a line of IPB's code; future-proof your modifications!
Improved Forum and Topic Marking
Forum are topic markers are now stored in the database. Our comprehensive system accurately tracks all your unread
topics regardless of which computer you use to access your account.
Topic Rating
Allow your members to rate each other's topics. This can be set per forum and per user-group.
Concurrent Post Capture
Optionally merge concurrent posts within a settable time-limit. Prevent "And another thing..." from creating a new
post!
In-line Topic Editing
An IPS innovation: Edit topics from the forum listing without a need to refresh your page!
In-line Post Editing
An IPS innovation: Edit posts quickly from the topic view page without reloading the topic!
Member Name Suggest
An IPS innovation: When composing a new PM or pruning a forum, enter part of a member's name and IPB will bring up a
list of suggested matches, instantly!
MyAssistant Re-Designed
An IPS innovation: A combined floating palette comprising of instant notification of new PMs with the ability to
cycle through recent PMs. Instant "new posts" listing, and quick search - all used without a single page refresh!
Re-designed Admin Control Panel
A totally re-worked ACP. A new tab system categorizes the ACP menu making it much easier to find what you want!
Re-designed Template Editing Screen
Taking advantage of the very latest scripting tools, we've totally re-worked the template editing interface making
it much easier to find the correct template bit you need to edit and even allowing you to edit several at once.
Log In Authentication
Choose between different types of authentication. Use existing member databases to authenticate your users; allow
a single password for your current member systems and your forums! LDAP and .Net PassPort modules being developed
now.

BETA RELEASE LIMITATIONS

Please note that this release is NOT officially supported in any way. This release has been made available to help identify and fix bugs in the software and is not of release quality in any way and should NOT be used in a production environment in any instance. We are also NOT offering installation service on this release.

Some areas of IPB are yet to be completed, these include:
* Skinning tools (search and replace, etc)
* Calendar (Event notifications)
* Components (Installation, ACP permission restrictions)

UPGRADING FROM IPB 2.0.x

There is NO way to upgrade your IPB 2.0.x board to IPB 2.1.0 so please don't try as data loss WILL occur!

UPGRADING FROM IPB 2.1.0 ALPHA 4

There is no upgrade path from IPB 2.1.0 ALPHA 4 and one will not be provided.

UPGRADING TO FUTURE BETA RELEASES

Upgrade scripts MAY be provided to upgrade you to future BETA releases although this isn't guaranteed as it depends on further changes to the code's core.

DOWNLOAD

Customers can download directly from their download center (make sure you log in first!).
http://www.invisionboard.com/download/index.php
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注：下载需要官方客户权限
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