At last, RM v4 have been released with good features, specially SMS for welcome/Expiry/warning messages. 
Complete Features added in v4 are as follows.
ACP:
http://radmandemo.dmasoftlab.com/admin.php
UCP:
http://radmandemo.dmasoftlab.com
More informations:
http://www.dmasoftlab.com/cont/radman
*** v 4.0.0 *** 2012-02-13 ***
NEW FEATURES:
-support for DHCP based cable modem accounts (DOCSIS)
-RADIUS IP pool support
-the default mobile number is displayed upon verifying a self registered account
-ACP list users more sortable columns
-contract id search option
-Hotspot MAC and CM users can purchase credits in UCP
-already used email address or SMS number is not allowed in self registration
-already used SMS number cannot be used for account verification
-notify admin in email when a new user is registered
-self registration welcome email with username / password
-self registration welcome SMS with username / password
-notify admin in email when a new IAS is registered
-IAS welcome email (username / psw)
-IAS welcome SMS (username / psw)
-send email upon adding credits (ACP, UCP)
-password recovery through SMS, email
-automatic MAC binding option for regular, card and IAS accounts
-write off option for managers
-PIN prefix field in card generator
-carry over remaining credits to next month (auto renew option)
-VAT id as optional self registration mandatory field
-remember last selected account type in new user form
-remember last selection in search invoices form
-account type selector in find users form
-option for disabling the grouping of decimals on invoice form
-filter postpaid payment status in list invoices form
-search for active / expired users, cards and IAS accounts
-search for used / unused accounts
-find users form remembers last selected checkbox status
-list and search refill cards
-the default sim-use value can be specified in system_cfg.php (useful for pfSense)
-definable additional traffic unit
-search invoice by account owner
-card print pdf series number
-online RADIUS users list show groups
-wireless signal monitoring
-enhanced online RADIUS users view
-geolocation field in edit user form
-CTS access permission flag
-enhanced traffic summary view
-new service flag: ignore static IP
-default sim-use is definable for self registered users
BUGFIXES:
-Hotspot MAC user uses blank password for NAS authentication and regular password for UCP
-disconnect daily quota enabled users every day at midnight
-authorize.net IAS purchase problem fixed
-PayPal Express Checkout total price decimal problem fixed
-PayPal Express Checkout security hole fixed
-special characters are allowed in NAS secret
-data rate for pfSense sent in bps instead of kpbs
-logout next service user when refilled in UCP
-automatically disconnect renewed postpaid users to return to the original service if next service is used
-scheduled service change logs out the user (POD)
-enhanched counters for available online time (no more ~800 hours limit)
-the fallback language (English) is used only if selected language is unavailable
-search invoices bug fixed
-traffic summary own users bug fixed
-special pricing periods 2 GB limit bug fixed
-IP address sort order problem fixed
-admin can list hidden services
Regard’s
SYED JAHANZAIB
Nice one , i was waiting for this release even i expected having the sms expiry notification …
But Radius Manager is more then worth for the price that they sell it …
Now we just need to try to upgrade our radius manager
Comment by Nori — February 15, 2012 @ 1:32 PM
Comment by Syed Jahanzaib / Pinochio~:) — February 15, 2012 @ 1:47 PM
Does your previous install instruction for v3.9 apply to the new DMASOFTLAB Radius Manager V4?
Comment by Steve — February 17, 2012 @ 8:47 AM
I haven’t tried it yet.
Few options have been added in v4, so slight configuration might be different. But the core installation would be same I guess.
Download its manual for v4.
Comment by Syed Jahanzaib / Pinochio~:) — February 17, 2012 @ 8:51 AM
Its worth
the best ever version 
like
much new features that i like :
Search is more faster , more better than in any version
U Can search users with group , users that are expired, disable and others …
u can arrange users with expire date descending and ascending
u can see each signal of every account into radius manager
and others …
Comment by nori — February 17, 2012 @ 6:58 PM
Nice i’m gonna go test it in my lab now.
Comment by Steve — February 17, 2012 @ 9:41 PM
Great , again RM rocks
Comment by Syed Jahanzaib / Pinochio~:) — February 18, 2012 @ 1:01 PM
aacable do u know any method for the docsis users after expiring her account to transfer into radius manager user page because radiusmanager on docsis don’t user ip pool but instead it is using the dhcp server …
is there a method to do a rediraction just for expired users
Comment by Nori — May 17, 2012 @ 6:39 PM
I have not worked with the Docsis module yet. Just configured RM once at a mini isp setup, afterward, didn’t get the chance to work more on it,
Comment by Syed Jahanzaib / Pinochio~:) — May 20, 2012 @ 8:41 PM