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The Pharo project announced Pharo 14 on October 26, 2026, its first release under a new September-to-November schedule. The release adds or reworks development tools and command-line features, alongside virtual-machine work that includes RISC-V JIT support and memory-management changes.
The Pharo project released Pharo 14 on October 26, 2026, introducing a set of changes to the programming language’s development tools, command-line capabilities and virtual machine. The release also marks a schedule shift: Pharo says it is moving from spring releases to a September-to-November window, making version 14 the first under the new timing.
On its release page, the project highlighted a broad refresh of the development environment. Pharo 14 introduces Mission Control and Pulse, which replaces Spotter, and reworks the Method Browser and Settings Browser. The project also moved Epicea and ProfStef into NewTools as part of an ongoing migration toward tools built on the Spec framework. Other listed changes include improvements to the File Browser, Finder, Transcript, code editor and TestRunner.
The release also reorganizes refactoring and command infrastructure. Refactoring commands have been moved to a driver-based architecture and a unified command registry, according to the project. New and expanded command-line features include testing and a debugger, as well as Sindarin script tooling. The project lists further changes to selector semantics, class and trait behavior, compiler interfaces, FFI features, and package and bootstrap dependencies.
Virtual-machine work includes unified frames and stack management, RISC-V JIT support, direct allocation in old space, and garbage-collection and allocation improvements. Pharo also reports work on Slang and C compilation, cross-platform builds, continuous integration and third-party dependencies. The project says 978 pull requests were integrated in the Pharo repository and 616 issues were closed since Pharo 13. Those figures refer to the main repository; the announcement separately points to work in associated projects.
A Broader Update to Pharo’s Toolchain
Pharo 14 reaches beyond a single feature: its announced changes cover the daily programming environment, the command workflows developers can use, and the runtime beneath their applications. The tool changes may alter how users browse code, manage settings, test projects and inspect executions. Command-line testing and debugging also give developers additional ways to work outside the graphical environment.
For teams evaluating Pharo, the virtual-machine changes are relevant to platform coverage and execution. The project says RISC-V JIT support expands that coverage, while memory-management and garbage-collection work changes how the VM handles allocation. The release notes do not provide benchmark results or quantified performance gains, so those changes should be read as engineering updates rather than proof of a particular speed improvement. The move to a fall release window also changes when users may expect future versions.
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From Pharo 13 to the Fall Cycle
Pharo describes itself as a pure object-oriented language and development environment centered on objects and messages. Its release page emphasizes a live workflow for developing, testing and debugging, alongside an interactive debugger that supports stepping through execution and changing methods during a session. The project says the full stack is released under the MIT License and is available on GitHub.
Pharo 14 follows Pharo 13 and reflects work across the main repository and related projects, including Spec, NewTools, Iceberg, Roassal, Microdown and the Pharo virtual machine. The release announcement lists 432 forks and 1,494 stars for the project on GitHub, but does not specify a measurement date for those counts. It also describes contributions from people reporting bugs, submitting code and participating in discussions.
The changed release calendar is a project-level scheduling update, not a change to the language’s licensing or core description. Pharo says the former spring window ran from March to May and the new fall window runs from September to November. Version 14 is identified as the first release in that new cycle.
“In this iteration of Pharo, our efforts have concentrated on three main areas: Modernizing the development tools. Rebuilding the refactoring and command infrastructure. Modernizing the virtual machine.”
— The Pharo project, in its Pharo 14 release announcement
Performance and Upgrade Details
The announcement does not provide benchmarks, quantified performance results or compatibility guidance for the listed VM and tool changes. It also does not specify in the supplied material whether any changes require migration steps for existing projects, or give a detailed support timeline for Pharo 13 users. While it lists RISC-V JIT support, it does not spell out the supported hardware configurations or the feature’s maturity.
The project says it is moving to a fall release window but gives no date for Pharo 15. The 432-fork and 1,494-star counts are reported without a measurement date, so they should not be treated as current live totals beyond the release announcement. Further details may be available through the project’s documentation, download page and linked repositories.
Installation and Future Release Dates
Users can obtain Pharo through the project’s download page, which the announcement links alongside its documentation and feature information. Developers who need details on a particular component can also consult the linked repositories for NewTools, Spec, Iceberg, Roassal, Microdown and the virtual machine. Those sources may provide implementation and usage information beyond the release summary.
The next project milestone under the revised calendar is a future release in the September-to-November period, but the announcement does not give a specific Pharo 15 date. Users and teams should check Pharo’s release notes and project channels for follow-up guidance on compatibility, platform support and any changes relevant to their applications.
Key Questions
What is Pharo 14?
Pharo 14 is the latest release of the Pharo programming language and development environment, announced on October 26, 2026.
What are the main changes in Pharo 14?
The release updates development tools, refactoring and command infrastructure, and the virtual machine. Named changes include Mission Control, Pulse as a replacement for Spotter, command-line testing and debugging, and RISC-V JIT support.
When will future Pharo releases arrive?
The project says it has changed its release window from March–May to September–November. It has not announced a specific date for Pharo 15 in the supplied release material.
Does Pharo report that version 14 is faster?
The announcement describes memory-management, garbage-collection and VM work, but provides no benchmark results or quantified performance claims. The scale of any speed change is not established by the release notes.
Where can users get Pharo 14?
The Pharo announcement directs users to the project’s download page and links to its documentation and feature pages.
Source: pharo.org
