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Pharo announced version 14 on October 26, 2026, with changes to its development tools, refactoring and command infrastructure, and virtual machine. The project reports 978 pull requests integrated in the Pharo repository and says this is its first release on a fall schedule.
The Pharo project released Pharo 14 on October 26, 2026, introducing changes to its development tools, command-line workflows and virtual machine. The release also marks a change in the project’s schedule: Pharo says it is moving from spring releases to a September–November window, making version 14 its first release under that timetable.
On the development-tools side, the release introduces Mission Control and Pulse, which replaces Spotter, and reworks the Method Browser. Pharo says it also rewrote the Settings Browser and brought Epicea and ProfStef into NewTools. These changes continue a broader move toward a Spec-based tooling stack, according to the project’s release announcement.
Pharo 14 also reorganizes refactoring commands around a driver-based architecture and a unified command registry. Command-line features include testing, a debugger and Sindarin script tooling. The release lists further changes across the compiler, debugger, code editor, file browser and interface components; the announcement does not provide a separate performance assessment for these updates.
Virtual-machine work includes unified frame and stack management, RISC-V JIT support, direct allocation in old space and garbage-collection improvements. The project also reports work on Slang/C compilation and cross-platform builds. It says the release integrated 978 pull requests in the Pharo repository and closed 616 issues since Pharo 13. Those figures describe project activity; they do not, on their own, measure speed or reliability gains.
A Broader Developer and VM Update
Pharo 14 is a coordinated update across the environment developers use and the runtime that executes their programs. The combination matters to existing users because changes to browsers, debugging, testing and command handling can affect everyday development, while virtual-machine and memory-management work can shape how applications run and how Pharo supports additional hardware platforms.
The listed additions may also make more work accessible from the command line, including testing and debugging. That is a practical shift for developers who want scripted workflows alongside Pharo’s interactive environment. However, the release announcement describes capabilities and engineering changes rather than publishing benchmark results, adoption data or a quantified comparison with Pharo 13. Readers should treat the scope of the work as confirmed, but not infer specific performance improvements beyond those stated.
The schedule change gives teams another planning detail to track. Pharo places future releases in the fall window of September through November, rather than the previous March-through-May period. The announcement does not give a date for Pharo 15, but the new cadence could affect when users plan upgrades and test compatibility.
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From Pharo 13 to the Fall Cycle
Pharo describes itself as a pure object-oriented programming language and development environment centered on objects, messages and interactive feedback. Its announcement highlights an integrated debugger that can step through code and restart method execution, as well as the ability to create methods during debugging. The project says its full stack is open source under the MIT License, with code and related projects hosted on GitHub.
Version 14’s focus is grouped into three areas: modernizing tools, rebuilding refactoring and command infrastructure, and updating the virtual machine. The release page lists changes across the core repository and related projects, including NewTools, Spec, Iceberg, Roassal and the Pharo virtual machine. Its summary of community activity says 432 forks and 1,494 stars were recorded on GitHub; the page does not specify a measurement date for those counts.
The project says Pharo 14 is the first release after shifting its schedule from spring to fall. It reports 616 issues closed since Pharo 13, alongside the 978 pull requests integrated for this release. These are the project’s own figures, and the announcement does not break them down by feature area or identify how many contributors worked on each change.
“In this iteration of Pharo, our efforts have concentrated on three main areas: modernizing the development tools, rebuilding the refactoring and command infrastructure, and modernizing the virtual machine.”
— The Pharo team
Performance and Upgrade Details
The announcement does not provide benchmarks, compatibility guidance or a detailed upgrade procedure. It also does not specify which operating systems or processor configurations are supported by the new RISC-V JIT work, or when that support will be ready for particular production uses. The release notes list the capability but do not give test results or deployment recommendations.
It is also unclear how the revised browsers and command tools will affect existing workflows, including whether users will need to change scripts or extensions. The source does not state how long Pharo 13 will receive support, provide a full issue-by-issue changelog in the announcement, or name a scheduled date for the next release. Those details may be available through the project’s download and documentation pages, but they are not established in the release report.
Downloads and Future Releases
Users can try Pharo 14 through the project’s download page and consult its documentation for learning and setup information. Teams considering an upgrade can review release materials and test their applications, tools and extensions against the new version; the announcement itself does not set out a migration timetable.
The project’s stated next scheduling milestone is its new September–November release window. No specific date or feature plan for Pharo 15 was included in the October 26 announcement. Further information about compatibility, platform coverage and the practical effects of the VM changes remains dependent on project documentation and subsequent user testing.
Key Questions
When was Pharo 14 released?
The Pharo project announced the release on October 26, 2026.
What are the main changes in Pharo 14?
The project highlights refreshed development tools, a unified command registry and expanded command-line features, along with virtual-machine work including RISC-V JIT support and memory-management changes.
What does the release say about Pharo 14’s development effort?
The project reports that 978 pull requests were integrated in the Pharo repository and that 616 issues were closed since Pharo 13. These are project-reported activity figures, not performance measurements.
Has Pharo changed its release schedule?
Yes. The project says it is moving from a March–May spring window to a September–November fall window. Pharo 14 is the first release on the new schedule.
Where can users get Pharo 14?
The project directs users to pharo.org/download for downloads and to its documentation page for learning and setup material.
Source: pharo.org
