API Updates

Welcome to the jamovi developer updates page. Here we track important changes to the jamovi API and ecosystem improvements.

December 2025

🖼️ Image Sizing (31-12-2025)

The 2.7.16 version of jamovi introduces image sizing support for R-based modules. This allow developers to specify or constrain the dimensions of plot outputs more precisely.

November 2025

⚡ New Analysis Action System (11-11-2025)

The 2.7.12 version of jamovi introduces the new analysis action system, providing a more robust way to handle user interactions and dynamic result updates.

March 2024

🚀 jamovi 2.5 Series (08-03-2024)

The 2.5 series of jamovi is out. This updates the R version to 4.3.2, and moves the snapshot forward to 2024-01-09.

Key Highlights:

ARM / Apple Silicon Support: Improved support for computers using ARM CPUs such as Chromebooks and the new “Apple Silicon” Macs.
Architecture Specifics: Note that modules are (typically) not portable between operating systems or architectures, so separate modules will need to be built for each.

Update dev tools: You’ll need to update your jmvtools to build against the 2.5 series:

install.packages('jmvtools', repos=c('https://repo.jamovi.org', 'https://cran.r-project.org'))

Old News & Historical Changes

Advanced UI Customisation (08-07-2019)

We’ve refined the advanced UI customization in jamovi 1.0.4 and newer. This is not backwards compatible with older 0.x versions.

Analysis State (09-06-2017)

We’ve added a new document to our tutorial series describing how jamovi analyses can use state. State is used with longer running analyses, and allows the analysis to re-use results that were calculated previously, leading to much faster performance.

jamovi 0.7.3 Dev Tools (20-04-2017)

Significant improvements to the development workflow:

Dependency Resolution: Isolated system libraries from jmvtools for more reliable builds.
UI Definition (.u.yaml): The .u.yaml and .a.yaml files now work together. Labels and properties are now pulled directly from the analysis definition, reducing redundancy.
Compiler Modes: Introduced aggressive (default) and tame modes for UI generation.

Dev Mode & Debugging (02-04-2017)

jamovi 0.7.2.7 adds dev mode, providing a stack trace when an analysis errors. Read more in Debugging an Analysis.