New updated version 4.1.1 is available for both free and Pro variants.
List of bugs fixed and updates applied:

• Issue when “users with “Editor” credentials were no longer able to change the author name in the drop down on each post to someone with administrative credentials” is fixed.
• Limitation when user with ‘Administrator’ role could not edit/delete other users with ‘Administrator’ role is removed.
• “Apply to All sites” checkbox is excluded from “Select All” operation.
• Quick filter is added to the user’s capabilities edit form. Capabilities selection buttons work is fixed after that.
• Pro version could be updated directly from WordPress now, exactly the same way as you do that with any other WordPress plugin. You need to insert “User Role Editor Pro” plugin license key at User Role Editor Settings page for that.

Read more User Role Editor 4.1.1 is available ›

User Role Editor version 4.1. is available. 1st, it includes bug fix for the class property and method access modifier problem discovered at version 4.0 (http://wordpress.org/support/topic/fatalerror-1). But it is not the only good thing you get with this update.
New feature named “Quick Filter” is realized. If you have a lot of plugins installed, which use their own capabilities extensively (like WooCommerce, Gravity Forms, etc.), or you created a lot of custom user capabilities yourself, it becomes a more difficult task to separate a subset of capabilities responsible for the needed task. The aim of “Quick Filter” tool is to help you resolve such problem easier way. Read more User Role Editor version 4.1 is available ›

User Role Editor Pro version 4.0 is available to the members with actual subscription plan. Just login and download your copy.
What’s new in the Pro version 4.0:

• Added ‘Export/Import’ functionality to ‘export’ all user roles to the local file and ‘import’ them then to other WordPress blog or other sites of muliti-site WordPress network, or just restore roles to previous state after playing with them with test purpose. (This feature is available for the Pro version only).
• Added integration with the Gravity Forms plugin. User Role Editor shows Gravity Forms user capabilities at the custom capabilities section. Read more User Role Editor Pro version 4.0 ›

User Role Editor WordPress plugin version 4.0 Beta is available for testing. Download it from this link.
The changes are:

• Added support for the “Gravity Forms” user capabilities. User Role Editor is integrated with “Gravity Forms” now and you can include “Gravity Forms” plugin capabilities to your blog user roles.
• Full code refactoring is made. Code is fully restructured and encapsulated to PHP classes. Enhanced security is applied: internal global variables are not in use at User Role Editor anymore, WordPress global variable are used only.

Please help testing this new version of User Role Editor plugin. Leave your feedback about bugs or problem, which could arise due to so global changes applied to the plugin source code.

This update is also a part of preparation to the publish of additional modules for the Pro version of the User Role Editor plugin, which be realized on the new plugin code base to offer you new functionality declared at development plan.

After thorough testing of the free version available via WordPress.org User Role Editor Pro version 3.14.1 is available for download. If you registered member of with active subscription plan you are welcome to download the latest version of User Role Editor Pro.

What’s new in the 3.14 version, including the bug fix 3.14.1?

• Interface update: role/capability add/remove stuff was removed from the page. Plugin has toolbar at the right side now. Click on the button opens needed dialog window.
• New role may have different attributes “ID” and “Name”. While ID is still restricted by latin characters hyphen, underscore and digits only, Name could contain spaces and national languages characters.
• General code cleanup and security enhancements: all data changes request are processed via POST instead of GET now. So its more difficult to send modified malicious request without special software. Presence of special nonce field is checked for all requests.
• Setting up the ‘administrator’ role as default one for new registered users is prohibited at server side.
• JavaScript code separated from PHP one whenever it’s possible.
• User capabilities page: roles checkboxes are excluded from ‘Select All’, ‘Unselect All’, ‘Inverse’ operations. Only capabilities checkboxes are processed.

For this moment Pro version differs from the free one by just one item – it is absolutely free from the advertisement. Even ‘Donate’ link is removed. Functionality of Pro version will be extended in the nearest future.
What is going on? I work intensively on the old code refactoring. The main purpose is general code optimization and improvement. I wish to fully exclude usage of global variable except of WordPress global object as wpdb, etc. As I finish this stage I will start publishing new functionality modules, plan for which is declared on the Home page.