What's new on Qollab

Create and edit projects in place

The /edit wizard is gone. Your project page is the editor: open it with ?edit=1, or Edit Project from the header menu, and the write-up, code, tags and contributors edit in place with autosave.

• Publish tags the draft as the next v<major>.<minor> (v1.0, then v1.1) and makes it the public version. Versions can be set as default, hidden or deleted; title and slug are renamed from Settings.
• New Project is a modal (title, description, Python or JS) that lands you in the editor. /new and /edit redirect.

Project page rebuilt

Three tabs: Project Card, Code and Discussions. The card is the write-up with a table of contents, plus About, Contributors, Tags, Versions and Repositories in a sidebar; Code has code panes with Python and JS run views. Views are addressable as #code, #run and #discussions. The project page and the forum have light and dark themes; the toggle is in the nav and follows your system setting until you pick one.

matplotlib in the Playground

plt.show() and savefig() render in the output pane, in every format matplotlib can write, from anything that plots through pyplot, not only Qiskit's drawers.

• A figure saved and then shown renders once, and show() is one-shot per figure. savefig(path) renders the figure, with a download in the format you asked for, instead of writing it to the virtual filesystem.
• circuit.draw('mpl') renders once; the Qiskit fork's MPLShim is gone.
• Pyodide 314.0.6, qiskit-ibm-runtime 0.49.0, qiskit-braket-provider 0.23.1.

Forum rebuilt around the thread stream

/forum is the stream of threads, newest first, loading as you scroll; categories are a scope strip above it. A topic page names the project the thread is about and has a share link. /forum/latest redirects to /forum.

Search

Search from the nav (/ focuses it): tags, projects and creators autocomplete as you type, and Enter opens /search. That page is a fulltext search over project titles, descriptions, write-ups and code, with match excerpts, filters (framework, tags, last updated) and pagination. An empty search box shows popular projects, trending creators, popular tags and your recent searches, stored in your browser.

Qiskit 2.5.2 and Pyodide 314.0.4

Qiskit 2.5.2 (fork rebased), PySCF 2.14.0, qiskit-ibm-runtime 0.48.0, qiskit-braket-provider 0.21.0 and Pyodide 314.0.4. rustworkx installs from PyPI, which ships a wasm32 wheel since 0.18.1.

Math in project write-ups

TeX in project write-ups is rendered before the markdown pass, not after, so align, cases, matrices and \\ row breaks no longer come out as KaTeX errors.

Explore, Learn, Programs, Forum

New top-level sections: /explore (articles, showcases, expert notes, news and this changelog), /learn (courses) and /programs, home of the Grant Program (up to $20,000 in IonQ compute credits per project, rolling review). The forum is at /forum. /community, /challenges, /topics, /tags and /rfp redirect.

AWS Braket local simulator

The AWS Braket local simulator is selectable as a backend, alongside qiskit-aer.

Playground simulation ~2.6x faster

qiskit-aer was being compiled with -Oz. Rebuilding it with -O2 made statevector simulation about 2.67x faster, and Aer's AVX2 kernels now run on wasm through Emscripten's SIMD128 emulation.

Python 3.14 in the browser

The in-browser runtime moved from Pyodide 0.29.4 to 314.0.1: Python 3.14, Emscripten 5.0.3, and the pyemscripten_2026 wheel set.

Forum and project discussions

The Qollab forum is live, and every project page has a Community tab backed by it.

• Discourse-backed, with avatars synced from your Qollab profile.
• Author-deleted posts are hidden from search and excluded from comment counts.

Contributor directory and platform stats

/contributor lists everyone building on Qollab. The homepage carries platform stats and a top-creator leaderboard, and both the gallery and profile pages paginate.

qiskit-aer runs in the browser

qiskit-aer is built as a Pyodide/Emscripten wheel and linked against OpenBLAS, so simulation runs locally with no backend round-trip. High-depth circuits now warn before you run them.

IBM simulator backends

IBM simulators are selectable as backends, alongside the Qiskit sampler.

Autosave and coauthors

Project content and code autosave as you work. Projects can list coauthors, so multi-builder work credits everyone.

Video embeds in project write-ups

Project write-ups support YouTube and self-hosted video embeds.

Run without an account

Circuits run without signing in. Sign in when you want to save or publish.

Runs on real quantum hardware

Circuits run on real quantum hardware, not only simulators.