# Caplin Platform system requirements This page documents the hardware requirements and software dependencies of the [Caplin Platform](index.md). ## Host hardware For help with capacity planning and choosing server hardware, see the following performance reports: * [Liberator benchmarks](../liberator/liberator-benchmarks.md) * [Transformer Refiner benchmarks](../transformer/transformer-refiner-benchmarks.md) 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. ## Host operating system (production) Caplin Platform 7 components are supported in production on the following operating systems: **Operating systems supported in production** | | RHEL | Windows | | --- | :-: | :-: | | Liberator 7.x | 8 (x86_64)
7 (x86_64)^{asterisk}^
6 (x86_64)^†^ | #icon:close[]# | | Transformer 7.x | 8 (x86_64)
7 (x86_64)^{asterisk}^
6 (x86_64)^†^ | #icon:close[]# | | DataSource for C 7.x | 8 (x86_64)
7 (x86_64)^{asterisk}^
6 (x86_64)^†^ | #icon:close[]# | | DataSource .NET 7.x | #icon:close[]# | See [.NET Framework](#microsoft-net-framework) | | StreamLink .NET 7.x | #icon:close[]# | See [.NET Framework](#microsoft-net-framework) | ^{asterisk}^ Red Hat Extended Life Cycle Support subscription required from 30th June 2024\ ^†^ Red Hat Extended Life Cycle Support subscription required Caplin Platform is also supported in containerised deployments. Caplin offers a Docker image supported in both production and development environments: [Platform Core](platform-core-docker-image.md).
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 | #icon:close[]# | | Transformer 6.2 | 5,6 | #icon:close[]# | | DataSource for C 6.2 | 5,6 | #icon:close[]# | | DataSource .NET 6.2.x | #icon:close[]# | See [.NET Framework](#microsoft-net-framework) | | StreamLink .NET 6.2.x | #icon:close[]# | See [.NET Framework](#microsoft-net-framework) | | KeyMaster .NET 6.2.x | #icon:close[]# | See [.NET Framework](#microsoft-net-framework) |
## Host operating system (development) Caplin Platform 7 is supported on the following operating systems for software development: | Operating system | Additional requirements | | --- | --- | | Linux: Red Hat Enterprise Linux 8 (x86_64) | - | | Linux: Red Hat Enterprise Linux 7 (x86_64)^†^ | - | | Linux: Red Hat Enterprise Linux 6 (x86_64)^{asterisk}^ | - | | Linux: other (x86_64) | Docker CE or Docker Desktop, and the [Platform Core](platform-core-docker-image.md) Docker image | | Windows (x86_64) | Docker Desktop and the [Platform Core](platform-core-docker-image.md) Docker image | | macOS (x86_64) | Docker Desktop and the [Platform Core](platform-core-docker-image.md) Docker image | ^{asterisk}^ Red Hat Extended Life Cycle Support subscription required\ ^†^ Red Hat Extended Life Cycle Support subscription required from June 30th 2024 For an example development workflow, see [Developing a Java adapter with Docker on macOS and Windows](../cis/cis-java-development-docker-windows-macos.md). Caplin Platform 7 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.
📌 NOTE: Legacy Windows and macOS builds of Liberator and Transformer
Legacy Windows and macOS builds of Liberator 7.1 and Transformer 7.1 remain available on the [Caplin Downloads](/account/downloads) site, but support for these builds has been withdrawn. From Liberator 7.1.30 and Transformer 7.1.18, Liberator and Transformer are available exclusively as Red Hat Linux binaries and are supported for software development on Windows, macOS, and Linux when run on Docker Desktop with the [Platform Core](platform-core-docker-image.md) image.
## Java runtime environment Caplin Platform deployments require a Java runtime environment (JRE) to run Java DataSources; Java modules in Liberator and Transformer; and JMX interfaces. 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](https://www.oracle.com/uk/java/technologies/javase/jdk-faqs.html) 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) |
DataSource for Java extensions **DataSource for 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) | **DataSource for Java: Charting API** | Version | JRE support | | --- | --- | | 7.0.0+ | Oracle Java 8 (\<= 8u202), Red Hat OpenJDK 8, Red Hat OpenJDK 11 | **DataSource for 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) | **DataSource for 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) | **DataSource for 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 |
## Java application server Caplin Platform’s [KeyMaster Java](../keymaster/index.md) 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 | | --- | --- | --- | | 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 |
## Microsoft .NET Framework The tables below describe the version of the .NET Framework required by KeyMaster .NET, DataSource .NET, and StreamLink .NET. **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 |
## 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: * [Activating the Persistence Service (Transformer 7)](../transformer/transformer-activating-the-persistence-service-7.md) * [Activating the Persistence Service (Transformer 6.2)](../transformer/transformer-activating-the-persistence-service.md)