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jPOSDocumentation Blog Resources

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2026

Flexible Fees, Governed Changes
Bulk Card Issuance as a Managed Job
jTS: Tokenization on the jPOS Control Plane
Client Simulator on the jPOS Control Plane
The Network You Meant to Run
The Third Leg, Close to Home
The Cost of Two Copies
jPOS Metrics Explorer: logs and AI in the loop
Vendor a Dependency, Then Give It Back
From Latest to Locked: Pinning jPOS SNAPSHOTs
jPOS Control Plane Notifications: The System Comes to the Operator
jPOS Transaction Log Inspector: Explain with AI
Enum keys in TransactionManager contracts
jPOS Client Simulator: functional testing on the Control Plane
jPOS Log Viewer, with chat in the loop
Log Ingestor: one writer, many readers
Latest and Greatest
Extending jPOS structured audit logs
jPOS/MGL Kubernetes Deployments
CMF v3 and the ISO 8583 Dataset Model
MassiveGL Posting Templates
MassiveGL Dynamic Rules
MassiveGL Virtual Layers
ISO 8583:2023 Datasets in jPOS
Security, release anxiety, and scanner noise
PCI DSS and the AI Agent Era
PCI DSS 4.0.1 Compliance Guide for jPOS-Based Systems
jPOS Log Viewer: structured operational logs
jPOS upgraded to Java 26
MassiveGL FX Rates
MassiveGL Is Taking Shape
jPOS Gradle Plugin 0.0.17
jPOS-EE Tip and Tail
jPOS Tutorial: New Sections Added
jPOS-template adopts Tip and Tail
From Pull Requests to Prompt Requests
jPOS 3.0.1 has been released

2025

You want a timeout (but which one?)
jPOS Monitoring

2024

jPOS Tip and Tail
jPOS 3.0.0 has been released
QBean Eager Start
PCI and SHA-1
MUXPool Strategies
Pause Timeout
Structured Audit Log
Config Smell

2023

jPOS 2.1.9 has been released
New Documentation
Restricted Context
jPOS 2.1.8 has been released

2022

Beyond the Ping
Q2 templates
TM timeout and max-time
jPOS Next
jPOS 2.1.7 has been released

2021

jPOS-EE 2.2.7 has been released
jPOS-2-1-6-has-been-released

2020

jPOS 2.1.5 has been released
BadSharedMemories
jPOS 2.1.4 has been released

2019

jPOS 2.1.3 has been released

2018

jPOS 2.1.2 has been released

2017

Asking a smart question
jPOS 2.1.1 has been released
jPOS-EE Crypto Service
TxnId
jPOS 2.1.0 has been released
Tutorial - Writing a gateway the jPOS way
Investor's Dilemma
jPOS-EE BinLog module
jPOS 2.0.10 has been released

2016

Q2 User Interface (aka 'QI')
jPOS 2.0.8 has been released
jPOS 2.0.6 has been released

2015

jPOS 2.0.4 has been released
SpaceLogListener
jPOS 2.0.2 has been released
ReplicatedSpace - 10 years later
jPOS 2.0.0 released

2014

Message HEX dump
jPOS 1.9.8 released
TransactionManager getId and getContext
Poor man in the middle
You want a timeout
How an audit can make you less secure
Context trace
QMUX internal space
Pull configurations

2013

DUKPT support in 1.9.5-SNAPSHOT
jPOS 1.9.4 released
W55Y
jPOS Programmer's Guide
Eating our own dogfood
Preliminary OSGi support
Setting up the Client Simulator
PADChannel delay on send
jPOS JVM options
SystemMonitor scripts
Six years under the AGPL
TransactionManager's new property
jPOS 1.9.0 is out and available in Maven central
Logger lifespan attribute

2012

jPOS 1.8.9 templates
jPOS 1.8.8 has been released
The Peter Effect
jPOS-EE 2.0 is out
jPOS 1.8.6 is out
jPOS-EE SysConfigConfigurationFactory
TransactionManager Debug and Trace events

2011

jPOS Maven Archetype

2010

jPOS Performance
jPOS 1.8 series
jPOS in Github
JRuby support
jPOS-EE Things
Q2 transient services
jPOS 1.6.8 has been released
Technology XYZ
What is jCard?

2009

YouTrack
jPOS 1.6.6 has been released
TransactionManager input-space
jPOS Project Guide
Small addition to jPOS XML message format
This is true
jPOS CMF
What's wrong with payment gateways?
Logging transactions in the new vdmspace
New modules 'voldemort' and 'vdmspace'
jPOS in Nairobi
Space Move aka poor man space transactions
VoldemortSpace
Embedding Q2
jPOS 1.6.4 has been released
PIN in PIN-less transactions

2008

jPOS jet set
New Record - 1050 TPS, 0.5 secs response time
Over half-a-billion served
jPOS careers
Payment Systems Podcast - episode 1
jCard and jPTS
jPOS 1.6.2 has been released
VISA Business Enhancements
Trust but verify your version number
Payment Systems Blog

2007

YAGNI
AGPLv3
Only 10 times bigger
jPOS-EE setup HOWTO
Customizing jPOS event logs
Space push
Seven Fallacies of jPOS applications
The Gladiators Team
JPublish is back
How Open Source Projects Survive Poisonous People
jPOS 1.6.0 has been released
TransactionManager Continuations
Parallel Processing

2006

jPOS and Cyclos
miniGL multi-currency support
Implementing the jPOS ISOPackager
miniGL Layers
TransactionManager RETRY
Amazing visit
miniSpace
r1000
BCFH
jPOS6
Specs Specs Specs
Encrypting sensitive data
Small World
jPOS-EE Constants

2005

ReplicatedSpace
jPOS 1.5.0 has been released
jPOS Training / Montevideo
jPOS HA Service
jPOS-EE miniGL module
Running jPOS-EE from Java Service Wrapper
Status Monitor
jPOS-EE QCluster
jPOS-EE - eeweb demo site
ISO/Bridge
New Wiki software
jPOS Training / Montevideo
jPOS Performance
New jPOS-Users mailing list
New jPOS project - miniGL

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