jSecure Authentication 3.0 has a range of improvements including:

3.5(19-Dec-2016):
Note: Only for Joomla! version 3.x

1. Change Database Prefix
2. Country Block for the website's frontend
3. Whois Lookup
4. New Dashboard

3.4(1-Feb-2016):
Note: Only for Joomla! version 3.x

1. Country Block feature
2. Minor bug fixes

3.3(14-Oct-2015):
Note: Only for Joomla! version 3.x

1. Email Scan during user registration
2. Minor bug fixes

3.2(02-Feb-2015):
Note: Only for Joomla! version 2.5.x and 3.x

A. Google Re-Captcha
B. Secure Image Authentication
C. Spam IP Protection

3.1(18-Sep-2014):
Note: Only for Joomla! version 2.5.x and 3.x

A.Multiple User keys
Assign multiple user keys to different users to whom you wish to grant access to your Joomla! backend without sharing your master passkey.

B.Form Based Authentication
Changed the look & feel of form based authentication page.

3.0.3(29-May-2014):
Fixed the Resource not found (404) console error for the file jsecure.css in jSecure login form.

3.0.2(23-Jul-2013):
A. Auto Ban I.P Address
Auto Ban IP Feature. Blacklist vulnerable IP addresses automatically.

B. Manage IPs
With this feature, you can simply add/remove Blacklisted IPs from "View Log".

3.0.1(12-Mar-2013):
A. Secure Components
Now with jSecure you can password protect installed components in the admin area.

B. Access Graph
Graphical representation of correct v/s wrong access for different segments of time.

3.0 (19-Dec-2012):

Added Security Features:

A. Master Password:
You can block access to the jSecure component from other administrators. Setting to "Yes", allows you to create a password that will be required when any administrator tries to access the jSecure configuration settings in the Joomla administration area.
If you do not enter a master password, the default password will be "jSecure". Provides options to include particular sections of the component in the master password.
B. Master Login Control:
Login control to restrict multiple users from logging into the site using the same username and password.
C. Admin Password Protection:
Added password protection to add an extra security layer over the administrator folder using htaccess and htpassword.
D. Directory Listing:
Directory listing to show a list of all files and folders with their permissions on the site.

Added Tools:
A. Black Listed/ White Listed IPs:
Now a range of IPs can be black listed or white listed by using the format '192...'. Warning !!! Use of '...*' is not permitted. !!!
B. Meta Tag Controller:
Meta tag controller to override metadata of Joomla.
C. Purge Sessions:
Using this option will clean up the session of all logged-in users and they let logged out.
* Improved backend presentation
* Improved support on our forum

Change Log for (J2.5, J3.0)

2.1.10(8-Nov-2012):
Included option to manage the permission settings for the user groups.