We are happy to announce the Brian 2.11 release. This release fixes a number of important bugs, improves error messages and documentation, and adds new support for Statements and Expression objects that support variable substitution, adhering to the same syntax as Equations. Following SPEC-0, this Brian release requires Python ≥ 3.13 and numpy ≥ 2.3. We now also provide pre-compiled Python wheels/conda packages for the recently released Python 3.15.

For more details, head over to the release notes.

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We are happy to announce the Brian 2.10 release. This release extends the functionality of PopulationRateMonitor and SpikeMonitor, which now provide a unified interface to for smoothed and binned rates, and adds a new run_at function to execute code at specific time points. It also fixes several important bugs and comes with performance improvements for C++ standalone mode. Behind the scenes, it made important progress in refactoring aspects of our code generation system, working towards the long-term goal of having a single C++ code generation system for standalone and runtime mode, and retiring the current Cython code generation mechanism.

For more details, head over to the release notes.

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We are happy to announce the Brian 2.9 release. This release extends the functionality of Brian’s linked variable feature (in particular, it can now be used to refer to a global modulation term in Synapses), and adds a “graceful interrupt” feature, allowing users to interrupt a simulation with Ctrl+C without triggering the usual Exception. As usual, the release also fixes a number of bugs and incompatibilities and comes with new examples in its documentation.

For more details, head over to the release notes.

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We are happy to announce the Brian 2.8 release. This release fixes a number of small bugs and improves our release infrastructure. In addition, it includes an important performance improvement for random number generation in C++ standalone mode, which significantly speeds up everything that needs randomness (e.g. PoissonGroup). It also comes with the Diehl & Cook (2015) model in the documentation, contributed by Björn Lindqvist (thanks!).

For more details, head over to the release notes.

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We are happy to announce the releases of Brian 2.7 and 2.7.1, together with the compatible CUDA backends Brian2CUDA 1.0a5 and 1.0a6. Apart from the usual mix of small improvements and bug fixes, the main new feature is the compatibility with the numpy 2.0 release.

For more details, head over to the release notes.

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It’s been a while since the last release, so we are very happy to announce that Brian 2.6 is finally out 🎉 This release comes with a major new feature to run standalone simulations repeatedly (or in parallel), without recompiling its code. We now also automatically push Docker images to Docker Hub, provide Python wheels for Python 3.12, and build and test on Apple Silicon hardware. The release also fixes various compatibility issues with the upcoming numpy 2.0 release – although we cannot be sure yet whether the ongoing development will not make additional changes neccessary. As always, the new release also fixes a bunch of small bugs and errors, and updates the documentation and the examples.

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It took us a while, but we are very happy to finally announce a new release, Brian 2.5 🎉. This release comes with a large number of bug fixes, various small improvements to the C++ code generation process, new examples and improved documentation, as well as a more powerful “generator syntax” for synapse generation. In particular, it is now possible to generate a fixed number of synapses randomly – either for each pre-synaptic or for each post-synaptic cell. We have also updated our build and testing infrastructure, and now provide binary pip-installable packages for all platforms, including the fancy new Apple hardware. Please let us know if you run into any issues!

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In these very particular times, we are nevertheless happy to announce a new release, Brian 2.4. This release fixes a large number of bugs and includes a number of small improvements. As announced with the previous release, Brian 2.4 is the first release that no longer supports Python 2. For a full list of changes, see the release notes. We recommend all users of Brian 2 to update.

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Happy New Year to all Brian users 🎉! We are happy to announce a new release, Brian 2.3. This release fixes a number of bugs and introduces some new features. It also paves the way for the transition from Python 2 to Python 3 – given that Python 2 is now no longer officially supported, Brian 2.3 will be the last release to support Python 2. For a full list of changes, see the release notes. We recommend all users of Brian 2 to update.

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