For molecular modelers and computational chemists, seamless integration of tools and extensions is critical to ensuring productive workflows. One challenge that often arises is ensuring compatibility between software platforms and their extensions, especially when updates introduce version mismatches. In this post, we’ll explore how SAMSON addresses this challenge with a robust version compatibility system.
Why Compatibility Matters
Molecular modeling platforms like SAMSON thrive on their extensible ecosystems, enabling modelers to customize features through extensions tailored to specific needs. However, if an extension is built for an older version of the SAMSON Software Development Kit (SDK), incompatibilities with the platform can lead to frustrating errors or failures to load critical tools.
The SAMSON framework prevents such challenges by implementing a clear semantic versioning policy, ensuring compatibility between the SAMSON platform and its SDK-dependent extensions. Here’s how it works:
Understanding Semantic Versioning
SAMSON employs semantic versioning to label its internal updates and manage compatibility between the platform and extensions. Each version is structured as major.minor.patch, where:
- Major version: Indicates non-backwards-compatible changes. An increment here means the extensions built for previous major versions will likely not work without updates.
- Minor version: Incorporates new, backwards-compatible features that shouldn’t impact existing extensions built with the same major number.
- Patch version: Resolves backwards-compatible bugs without introducing new features.
This structured approach ensures that developers and users have a predictable system for assessing compatibility.
How SAMSON Ensures Extension Compatibility
When SAMSON starts up, it checks the version of the SDK used to build each extension against its internal version. An extension SDK version majorSDK.minorSDK.patchSDK is deemed compatible with the SAMSON version majorSAMSON.minorSAMSON.patchSAMSON if the following conditions are met:
- The
majorversion numbers of SAMSON and the SDK are identical (e.g., both must be 1.x.x). - The SDK’s
minorversion number is less than or equal to SAMSON’sminorversion number.
Example: An extension built with SDK version 1.5.2 will be compatible with SAMSON version 1.7.8 (as both have the same major number and the SDK’s minor number is smaller). However, an SDK version 1.8.5 will not be compatible with SAMSON version 1.7.8 due to the higher minor number.
Automatic Updates for Peace of Mind
SAMSON takes the hassle out of managing extensions by automatically updating them when new compatible versions are published on SAMSON Connect. If an internet connection is available, SAMSON will seamlessly fetch the latest versions at startup, ensuring you always work with the most up-to-date tools.
However, if a new, incompatible major version of SAMSON is required for a newer extension version, SAMSON will hold off such updates. This way, your existing setup remains stable and functional until you decide to update SAMSON to a major version that aligns with your new extension.
Keep SAMSON Updated!
Molecular modelers are strongly encouraged to keep SAMSON up to date. Regular updates not only ensure access to the latest features and bug fixes but also maximize compatibility with a growing ecosystem of cutting-edge extensions created by the community.
To dive deeper into SAMSON’s versioning and compatibility mechanisms, head over to the official documentation.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use, making it accessible to students, educators, and researchers worldwide.