uniCenta POS / News: Recent posts

uniCenta oPOS v3.81 source code now available

uniCenta oPOS v3.81 source code now available is now available for download.

v3.90 source code is exactly the same as v3.81 with the exception that it includes installer for posApps Digital Receipt plugin.


Posted by uniCenta 2014-12-31

Merry Christmas & Happy New Year!

Merry Christmas to each and everyone of you!

May you and your loved ones have a Happy, Wonderful and Prosperous New Year.

Posted by uniCenta 2014-12-25

Swedish Language Pack

Thanks go out to Krister for kindly giving us Swedish language translation for uniCenta oPOS.

You can grab it from here: http://sourceforge.net/projects/unicentaopos/files/app/Locales/


Posted by uniCenta 2014-12-16

Italian Language Pack update

Big Thanks once again to Angelo Rizzo

Another fresh Italian Language Pack update from him - for uniCenta oPOS version 3.81


Posted by uniCenta 2014-11-28

uniCenta oPOS v3.90 released!

v3.90 Is a functional Enhancement to uniCenta oPOS v3.81 version
It is not a bug-fix or change release

  1. Enhancement: Plugin integration - PosApps Digital Receipt
    Visit www.posapps.io for more information

This version is our very first "plugin" app... and there's more to come in 2015!

If you do not need our posApps Digital Receipt integration - we hope you do :-) and want to give it a try... - then you could stay with your current version... read more

Posted by uniCenta 2014-11-26

uniCenta oPOS v3.81 Released

Release: v3.81

  1. Bug: Ticket numbers incrementing incorrectly on Derby DB
    Fix: Reverted back to Derby driver : 10.10.2
  2. Bug: Error in UpdateRecord for CSV Import
    Fix: Java class updated accordingly.
Posted by uniCenta 2014-11-05

v3.80 Critical issue... Resolved

The Critical issue affecting fresh uniCenta oPOS v3.80 Apache Derby based installs has been resolved.

We found it to be caused by the latest Apache Derby derby.jar driver packaged with v3.80

Turns out that Apache modified the IDENTITY function (it's used for the TicketID and PickupID fields in uniCenta oPOS) sequential numbering behaviour to align with SQL-92 requirements.

We will revert back to Apache Derby 10.10.2 derby.jar A new build will be available in the next few days.... read more

Posted by uniCenta 2014-11-02

v3.80 Critical issue!

You may/may not know I release source code only after a few weeks have passed after a GA release.
Here's a good example why:
A CRTICAL issue with new installs of uniCenta oPOS using default Apache Derby database has come to light.

Ticket & PickupID numbering has somehow gone wonky and is adding +100 to every new ticket instead of +1
It only happens when you START uniCenta oPOS
So, if ticket numbers started the session with say 150 and completed 50 sales tickets would be OK and complete at 199 BUT...
Close uniCenta oPOS and restart and ticket numbers now start at 250 - they then continue normally..
Next session ticket numbers would be 350 and so on.... read more

Posted by uniCenta 2014-10-30

Requests for source code

I receive a constant flow of direct emails requesting the release of the latest source code.
It's something I've responded to many times in the forums and want to explain again here in the News section which hopefully is more visible to everyone than being tucked away in a post or thread.

My policy is to release latest source code only after a few weeks have passed.

The main reason behind the approach is this:
I monitor the forums for feedback on the latest release after it has been put to the test by real users. If there are fixes required they get done followed by [.] dot release to that version.... read more

Posted by uniCenta 2014-10-12

uniCenta oPOS v3.80 released!

uniCenta oPOS v3.80 released!

Bug Fixes: 12
Changes: 11
Enhancements: 10

As per usual please read the ReadMe and RN_380 Release Notes.

Windows installer download here:

Linux and Mac OS X installers to follow but for now just download and use the binaries no installer from here:

Posted by uniCenta 2014-10-05

uniCenta oPOS. What's it all about?


I'm prompted to write this post because seemingly some people "Just don't get it".
So, I want to share my "thoughts" as to why uniCenta oPOS exists and why this forum is here.

This is a FREE forum.

It's a place that really belongs to all you guys - the enthusiast, users of uniCenta oPOS and any one else who cares to come along.
I want it to be a place where new members are made to feel welcome, be there to help each other, share ideas, solve issues and even your code wherevever you can.
This is my idea of what this community and forum is all about.... read more

Posted by uniCenta 2014-08-18

Linux & Mac OS X users

uniCenta oPOS has always been x-platform (Windows, Linux, Mac OS X) and still is.

Installers for uniCenta oPOS 3.60 for Linux and Mac OS X users have not been available due to a couple of issues.

Linux and Mac OS X can now, once again, enjoy uniCenta oPOS with latest 3.70 version as a completely self-contained .zip is now available.
Go here: http://sourceforge.net/projects/unicentaopos/files/app/binaries%28no%20installer%29/... read more

Posted by uniCenta 2014-07-24

Moderation and Redaction


I was approached directly and asked to resolve a spat going on in a forum thread by a uniCenta oPOS user. I posted but have now deleted as in hindsight it was not the right thing for me to do.
These are your forums and my involvment should be minimal and kept to moderation, guidance and comment.

Apologies for that.


Posted by uniCenta 2014-06-15

Italian Language pack update

Update: langpack italian R370
Author: Angelo Rizzo
Date: 1 June 2014

pos_messages_it traslation "message.DBDefault"

Release Note RN_360.txt

Release Note RN_370.txt
report:barcodesheet_messages_it (added)
report:invalidcategory_messages_it (added) report:newproducts_messages_it

Posted by uniCenta 2014-06-02

It's a bit naughty....


uniCenta oPOS has recently attracted some less than welcome participants both inside and outside of - sending me emails directly - the forums.
I guess "they" just don't "get" what uniCenta oPOS is or they want to be deliberately malicious for whatever reason.

Here's my message to "THEM"
uniCenta oPOS is my own derived work from Openbravo POS.
It is free and open source and is a project I have worked on since 2010, developed entirely alone and contributed to it with my own knowledge, time and money.
It still is. ... read more

Posted by uniCenta 2014-05-26

v3.70 released!

Took longer than usual couple of weeks after a GA (as if you hadn't noticed) and here's the reason:
Decided to fix the newly introduced reports as well as added some more Enhancements + included a few tidy-ups/changes here and there.

Full v3.70 Source code is available here on Sourceforge too!


Posted by uniCenta 2014-05-12

uniCenta oPOS v3.60 Released!

Letting you all know

uniCenta oPOS v3.60 released today!

Over 50 fixes and enhancements.


Posted by uniCenta 2014-04-06


Linux .sh scripts updated.

configure.sh and start.sh

These should replace those included in the installer.
Versions 3.50 through to 3.56 inclusive


Posted by uniCenta 2014-03-09

Next release - pushed back

Next uniCenta oPOS version release has been pushed back a couple of weeks due to lack time to complete.


Posted by uniCenta 2014-03-08

Updated language locales

I have updated the app/locale folder with the latest locale files

The folder contains all 14 languages - you just need to know many are complete but some still need work.

It includes and additional language - Italian
Big thanks to Angelo Rizzo for the translation

It includes an update - Spanish
Big thanks to you too Mateu

And don't forget - it's easy to change the currency graphics on the Payment form. Look in the Bonus\Images\Currency in your uniCenta oPOS installation folder... read more

Posted by uniCenta 2014-02-01

Calling all Dealers/Resellers/Partners


Sourceforge have just contacted me and they are offering a new feature which I may consider adding to the uniCenta oPOS Project here.

They say the new feature is targeted to attract Enterprise level clients and lets me include a list of Partners along with their Contact Details.

This is a great opportunity to further accelerate the acceptance of open-source app's into the commercial space as well as attract commercial prospects for you in your Region.... read more

Posted by uniCenta 2013-12-23

Seasons Greetings

All I want to say is that I wish you and your loved ones

A Very Merry Christmas


A Happy and Prosperous New Year


Posted by uniCenta 2013-12-22

uniCenta oPOS v3.56

Want to let you know am Uploading uniCenta oPOS v3.56 today 2 December 2013

This version fixes many of the bugs listed in the Bugs tickets list here in the Sourceforge project forum as well as a few others that have surfaced since release of v3.55
There are also a handful of enhancments - mainly minor cosmetic things.

As usual, if you find a bug then please make sure you create a ticket in the Bugs section.... read more

Posted by uniCenta 2013-12-02

uniCenta oPOS in your browser

Have had many requests to get uniCenta oPOS to run in a Browser; for the Desktop; Tablet and Smartphone or as an actual On Device Application.
I looked at Openbravo POS simple PDA app' some time back but it was woefully inadequate to be useful and discarded it. Since then I've been searching for a solution and I'm pleased to say; I have potentially found one!

As you know uniCenta oPOS is written in Java and taking the Android route - it's reasonably close to the Java Desktop version to be a viable port - would mean crafting another version for Browsers and yet another for Apple's iOS & etc... Simply not a practical proposition to port it across each platform down to technical, cost, time and resource challenges.... read more

Posted by uniCenta 2013-11-05

v3..55 2nd Upload atttempt

Seems the v3.55 upload yesteray (Sat 26th Oct) did not complete although I saw 100% in the Sourceforge Uploader, so here is my second attempt.
Looks to be all there now. And have downloaded and installed. Let me know if you still have any issues.

Sun 27th Oct - 17:20 GMT

Posted by uniCenta 2013-10-27