Caplin Platform 8 System Requirements

This page documents the hardware requirements and software dependencies of the Caplin Platform.

Server hardware

For help with capacity planning and choosing server hardware, see the following performance reports:

Server configuration

To ease log-file analysis across servers, time zones, and daylight savings transitions, we recommend that you set the system clocks of all hosts in a Caplin stack to UTC.

Operating system (production)

Caplin Platform 8 components are supported in production on the following operating systems:

Liberator 8, Transformer 8, DataSource for Java 8, DataSource for C (DSDK) 8

Red Hat Enterprise Linux 9 (x86_64, aarch64) [recommended]
Red Hat Enterprise Linux 8 (x86_64)

StreamLink Android 8

Android 11 (API level 30) and higher

StreamLink .NET 8

Microsoft Windows 10 and 11
Microsoft Windows Server 2019 and 2022

DataSource .NET 8

Microsoft Windows Server 2019 and 2022

Caplin Platform 7

Caplin Platform 7 components are supported in production on the following operating systems:

Operating systems supported in production
RHEL Windows

Liberator 7.x

6 (x86_64), 7 (x86_64)

Transformer 7.x

6 (x86_64), 7 (x86_64)

DataSource for C 7.x

6 (x86_64), 7 (x86_64)

DataSource .NET 7.x

See .NET Framework

StreamLink .NET 7.x

See .NET Framework

Caplin Platform 6.2 (EOL)

Support for Caplin Platform 6.2 ended 17 January 2019.

Operating systems supported in production
RHEL Windows

Liberator 6.2

5,6

Transformer 6.2

5,6

DataSource for C 6.2

5,6

DataSource .NET 6.2.x

See .NET Framework

StreamLink .NET 6.2.x

See .NET Framework

KeyMaster .NET 6.2.x

See .NET Framework

Operating system (development)

Caplin Platform 8 components are supported in development on the following operating systems:

Liberator 8, Transformer 8, DataSource for Java 8, DataSource for C (DSDK) 8

Red Hat Enterprise Linux 9 (x86_64, aarch64)
Red Hat Enterprise Linux 8 (x86_64)
Linux (other than RHEL) with Docker CE or Docker Desktop hosted containers
Microsoft Windows 10 and 11 with Docker Desktop hosted containers
macOS with Docker Desktop hosted containers

StreamLink Android 8

Microsoft Windows 10 and 11
Linux
macOS

StreamLink .NET 8

Microsoft Windows 10 and 11
Microsoft Windows Server 2019 and 2022

DataSource .NET 8

Microsoft Windows Server 2019 and 2022
Microsoft Windows 10 and 11

Caplin Platform 8 is not supported on Windows Subsystem for Linux (WSL). We don’t use WSL internally or test on it, so we’re not in a position to support it.

Java

Platform 8 components are supported on the following JVMs:

DataSource for Java 8, Liberator 8 Java modules, Transformer 8 Java modules

OpenJDK 17

Caplin Platform 7.1

The most recent releases of Caplin Platform 7.1 components and libraries support the following JREs:

  • Red Hat OpenJDK 11

  • Red Hat OpenJDK 8

  • Oracle Java 8 (<= 8u202)

Releases of Oracle Java 8 after update 202 (8u202) require an Oracle licence for commercial use. Releases of the OpenJDK 8 after update 202 (8u202) remain free for commercial use. For more information, see the Oracle Java SE Licensing FAQ on the Oracle website.

For the full history of JRE support in the Caplin Platform, refer to the tables below:

Liberator
Version JRE support

7.1.15+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.14

Oracle Java 8 (<= 8u202)

Transformer
Version JRE support

7.1.10+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.9

Oracle Java 8 (<= 8u202)

DataSource for C
Version JRE support

7.1.16+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.15

Oracle Java 8 (<= 8u202)

DataSource for Java
Version JRE support

7.1.11+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.10

Oracle Java 8 (<= 8u202)

StreamLink for Java
Version JRE support

7.1.7+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.6

Oracle Java 8 (<= 8u202)

Java Blotter API
Version JRE support

7.1.4+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.3

Oracle Java 8 (<= 8u202)

Java Charting API
Version JRE support

7.0.0+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

Java Notification API
Version JRE support

7.1.1+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.0

Oracle Java 8 (<= 8u202)

Java Permissioning API
Version JRE support

7.0.1+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0

Oracle Java 8 (<= 8u202)

Java Trading API
Version JRE support

7.1.2+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

7.0.0–7.1.1

Oracle Java 8 (<= 8u202)

Caplin FX solutions
FX Integration API
Version JRE support

3.53+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

3.52

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8

3.0–3.51

Oracle Java 8 (<= 8u202)

RET Adapter Toolkit 4
Version JRE support

4.9.0+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11

4.7.0–4.8.0

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8

4.0.0–4.6.0

Oracle Java 8 (<= 8u202)

RET Adapter Toolkit 3
Version JRE support

3.12.0+

Oracle Java 8 (<= 8u202), Red Hat OpenJDK 8

3.0.0–3.11.0

Oracle Java 8 (<= 8u202)

Caplin Platform 6.2 (EOL)

Support for Caplin Platform 6.2 ended 17 January 2019.

Liberator
Version JRE support

6.2.5+

Oracle Java 8 (<= 8u202)

6.2.0–6.2.4

Oracle Java 7

Transformer
Version JRE support

6.2.5+

Oracle Java 8 (<= 8u202)

6.2.0–6.2.4

Oracle Java 7

.NET

Platform 8 components are supported on the following .NET frameworks:

StreamLink .NET 8, DataSource .NET 8

.NET Framework 4.8

Caplin Platform 7.1
DataSource .NET
Version .NET Framework

7.1.18+

4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8

7.1.0–7.1.17

4.6

7.0.x

4.5

StreamLink .NET
Version .NET Framework

7.1.13+

4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8

7.1.11–7.1.12

4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2

7.1.0–7.1.10

4.6

7.0.x

4.5

Caplin Platform 6.2 (EOL)

Support for Caplin Platform 6.2 ended 17 January 2019.

DataSource .NET
Version .NET Framework

6.2.x

2.0

StreamLink .NET
Version .NET Framework

6.2.x

3.5

KeyMaster .NET
Version .NET Framework

6.2.x

3.5

Java application server

Caplin Platform’s KeyMaster Java is a single sign-on (SSO) solution that enables Liberator to delegate the act of authentication to a Java application server, such as Apache Tomcat.

Caplin web applications each include a KeyMaster servlet to provide seamless integration of Liberator with a bank’s authentication systems. For the hosting requirements of Caplin’s web applications, see the release notes for each web application.

The KeyMaster Java development kit includes example KeyMaster servlets that you can customise for your own web applications. For the hosting requirements of the example servlets, see the table below:

KeyMaster Java development kit examples
KeyMaster version Servlet specification Tested application servers

8.0.0+

4.0

Apache Tomcat 9.0

Caplin Platform 7.1
KeyMaster Java development kit examples
KeyMaster version Servlet specification Tested application servers

7.0.0+

4.0

Apache Tomcat 9.0

Caplin Platform 6.2 (EOL)

Support for Caplin Platform 6.2 ended 17 January 2019.

KeyMaster Java development kit examples
KeyMaster Version Servlet specification Tested application servers

6.2.x

2.4

Apache Tomcat 5.0

Database server

Transformer’s Persistence Service module requires a JDBC-compatible database server that supports text-based authentication.

For the list of database servers supported by the Persistence Service, see: