What's New in Juno 4.4: AI & ML ON-DEVICE – Run language models, generate images and train neural networks on your iPhone or iPad, from your own Python code: llama-cpp-python, MLX, mlx-lm and Keras now ship with Juno. – Five ready-to-run projects in Home's new AI & ML section: chat with a local LLM, Stable Diffusion image generation, Keras training, RAG over your own notes, and LoRA fine-tuning. Models download on the first run and work offline after that. MLX, KERAS AND STABLE DIFFUSION – Apple's MLX array framework and mlx-lm are built in: run language models and fine-tune them with LoRA adapters, right on your device. – Build and train neural networks with Keras on a fast MLX backend — the same Keras code you would write on a laptop. – Generate images from a text description with Stable Diffusion running on MLX; a compact model downloads first, and larger ones are one line away. RUN LLMS LOCALLY – Chat with a GGUF language model through llama-cpp-python, the Python bindings for llama.cpp, with replies streamed word by word. Start with the Qwen3 download, or drop in a GGUF file of your own. – Ask questions about your own notes: a small embedding model finds the relevant passages and a local LLM answers from those passages only, so nothing leaves your device. HUGGING FACE BUILT IN – huggingface_hub, transformers, tokenizers and safetensors now ship with Juno — nothing to install, just import them. Downloaded models are kept in Files, in Juno's huggingface folder. MORE – New built-in packages, including pymunk for 2D physics and audioop-lts. – Leaving the REPL now keeps your session, so you can pick up where you left off. – Notebook settings such as Wrap Lines and Show Line Numbers now apply to newly opened notebooks without a relaunch. – Security updates: refreshed trusted certificates and a fix for a vulnerability in the bundled Brotli decoder (CVE-2026-111497). – A range of stability and reliability fixes.

What's New in Juno 4.3.6: Minor bug fixes and improvements. Here's everything new in Juno 4.3: A NEW HOME SCREEN – Juno now opens on Home, a customizable quick launcher for your files, examples, and games. MORE PACKAGES BUILT IN – Polars, DuckDB, scikit-image, Biopython, PyCryptodome, XGBoost, LightGBM, and more now ship with Juno — nothing to install, just import them. GAMES AND TURTLE GRAPHICS – pygame is now bundled, along with complete games and retro emulators, including NES and Game Boy, all written in Python with their code ready to explore. – import turtle now works, with starter examples that take you from your first drawing to small interactive programs. MORE – Jupyter notebooks now open as live, editable tabs inside projects. – Richer syntax highlighting for Markdown files in the editor. – URLs printed to the Console are now tappable. – A range of stability and reliability fixes.

What's New in Juno 4.3.5: Minor bug fixes and improvements. Here's everything new in Juno 4.3: A NEW HOME SCREEN – Juno now opens on Home, a customizable quick launcher for your files, examples, and games. MORE PACKAGES BUILT IN – Polars, DuckDB, scikit-image, Biopython, PyCryptodome, XGBoost, LightGBM, and more now ship with Juno — nothing to install, just import them. GAMES AND TURTLE GRAPHICS – pygame is now bundled, along with complete games and retro emulators, including NES and Game Boy, all written in Python with their code ready to explore. – import turtle now works, with starter examples that take you from your first drawing to small interactive programs. MORE – Jupyter notebooks now open as live, editable tabs inside projects. – Richer syntax highlighting for Markdown files in the editor. – URLs printed to the Console are now tappable. – A range of stability and reliability fixes.

What's New in Juno 4.3.4: This update fixes a number of bugs and improves stability. Here's everything new in Juno 4.3: A NEW HOME SCREEN – Juno now opens on Home, a customizable quick launcher for your files, examples, and games. MORE PACKAGES BUILT IN – Polars, DuckDB, scikit-image, Biopython, PyCryptodome, XGBoost, LightGBM, and more now ship with Juno — nothing to install, just import them. GAMES AND TURTLE GRAPHICS – pygame is now bundled, along with complete games and retro emulators, including NES and Game Boy, all written in Python with their code ready to explore. – import turtle now works, with starter examples that take you from your first drawing to small interactive programs. MORE – Jupyter notebooks now open as live, editable tabs inside projects. – Richer syntax highlighting for Markdown files in the editor. – URLs printed to the Console are now tappable. – A range of stability and reliability fixes.

What's New in Juno 4.3.3: This update fixes a number of bugs and improves stability. Here's everything new in Juno 4.3: A NEW HOME SCREEN – Juno now opens on Home, a customizable quick launcher for your files, examples, and games. MORE PACKAGES BUILT IN – Polars, DuckDB, scikit-image, Biopython, PyCryptodome, XGBoost, LightGBM, and more now ship with Juno — nothing to install, just import them. GAMES AND TURTLE GRAPHICS – pygame is now bundled, along with complete games and retro emulators, including NES and Game Boy, all written in Python with their code ready to explore. – import turtle now works, with starter examples that take you from your first drawing to small interactive programs. MORE – Jupyter notebooks now open as live, editable tabs inside projects. – Richer syntax highlighting for Markdown files in the editor. – URLs printed to the Console are now tappable. – A range of stability and reliability fixes.

What's New in Juno 4.3: A NEW HOME SCREEN – Juno now opens on Home, a customizable quick launcher for your files, examples, and games. MORE PACKAGES BUILT IN – Polars, DuckDB, scikit-image, Biopython, PyCryptodome, XGBoost, LightGBM, and more now ship with Juno — nothing to install, just import them. GAMES AND TURTLE GRAPHICS – pygame is now bundled, along with complete games and retro emulators, including NES and Game Boy, all written in Python with their code ready to explore. – import turtle now works, with starter examples that take you from your first drawing to small interactive programs. MORE – Jupyter notebooks now open as live, editable tabs inside projects. – Richer syntax highlighting for Markdown files in the editor. – URLs printed to the Console are now tappable. – A range of stability and reliability fixes.

What's New in Juno 4.2.5: This update fixes a range of bugs in the package manager, along with a number of smaller fixes and polish. It also adds new models to the AI catalog. Here's everything new in Juno 4.2: THE PACKAGE MANAGER, REWORKED – Install a package and Juno works out everything else it needs, shows you the plan, and installs the whole set. – Point it at a project's requirements.txt and it does the same for every package the project needs. – Package pages are rebuilt around the project's README, its versions, and what's installed on your device. – Browse popular packages, see when updates are available, and tidy up dependencies left behind when you uninstall. MORE AI PROVIDERS – Use OpenRouter, DeepSeek, Together, or Groq, or point Juno at any OpenAI-compatible endpoint — including a model server running on your own network. – Some providers now let you sign in with your account instead of pasting an API key, and Juno shows how much of its allowance is left. – New models throughout the catalog, with context and account limits shown right in the composer. UPDATED ENVIRONMENT – pandas 3.0, NumPy 2.4.6, scikit-learn 1.9, SciPy 1.18, and lxml 6.1.1 lead a refresh of the bundled packages. MORE – Juno launches faster when you have a lot of packages installed. – A range of stability fixes, including crashes in the code editor, with the iPad keyboard, and when shutting down a kernel.

What's New in Juno 4.2.4: This update fixes a range of crashes and stability issues, along with a number of smaller interface fixes and polish. Here's everything new in Juno 4.2: THE PACKAGE MANAGER, REWORKED – Install a package and Juno works out everything else it needs, shows you the plan, and installs the whole set. – Point it at a project's requirements.txt and it does the same for every package the project needs. – Package pages are rebuilt around the project's README, its versions, and what's installed on your device. – Browse popular packages, see when updates are available, and tidy up dependencies left behind when you uninstall. MORE AI PROVIDERS – Use OpenRouter, DeepSeek, Together, or Groq, or point Juno at any OpenAI-compatible endpoint — including a model server running on your own network. – Some providers now let you sign in with your account instead of pasting an API key, and Juno shows how much of its allowance is left. – New models throughout the catalog, with context and account limits shown right in the composer. UPDATED ENVIRONMENT – pandas 3.0, NumPy 2.4.6, scikit-learn 1.9, SciPy 1.18, and lxml 6.1.1 lead a refresh of the bundled packages. MORE – Juno launches faster when you have a lot of packages installed. – A range of stability fixes, including crashes in the code editor, with the iPad keyboard, and when shutting down a kernel.

What's New in Juno 4.2.3: This update fixes a range of crashes and stability issues, along with a number of smaller interface fixes and polish. Here's everything new in Juno 4.2: THE PACKAGE MANAGER, REWORKED – Install a package and Juno works out everything else it needs, shows you the plan, and installs the whole set. – Point it at a project's requirements.txt and it does the same for every package the project needs. – Package pages are rebuilt around the project's README, its versions, and what's installed on your device. – Browse popular packages, see when updates are available, and tidy up dependencies left behind when you uninstall. MORE AI PROVIDERS – Use OpenRouter, DeepSeek, Together, or Groq, or point Juno at any OpenAI-compatible endpoint — including a model server running on your own network. – Some providers now let you sign in with your account instead of pasting an API key, and Juno shows how much of its allowance is left. – New models throughout the catalog, with context and account limits shown right in the composer. UPDATED ENVIRONMENT – pandas 3.0, NumPy 2.4.6, scikit-learn 1.9, SciPy 1.18, and lxml 6.1.1 lead a refresh of the bundled packages. MORE – Juno launches faster when you have a lot of packages installed. – A range of stability fixes, including crashes in the code editor, with the iPad keyboard, and when shutting down a kernel.

What's New in Juno 4.2: THE PACKAGE MANAGER, REWORKED – Install a package and Juno works out everything else it needs, shows you the plan, and installs the whole set. – Point it at a project's requirements.txt and it does the same for every package the project needs. – Package pages are rebuilt around the project's README, its versions, and what's installed on your device. – Browse popular packages, see when updates are available, and tidy up dependencies left behind when you uninstall. MORE AI PROVIDERS – Use OpenRouter, DeepSeek, Together, or Groq, or point Juno at any OpenAI-compatible endpoint — including a model server running on your own network. – Some providers now let you sign in with your account instead of pasting an API key, and Juno shows how much of its allowance is left. – New models throughout the catalog, with context and account limits shown right in the composer. UPDATED ENVIRONMENT – pandas 3.0, NumPy 2.4.6, scikit-learn 1.9, SciPy 1.18, and lxml 6.1.1 lead a refresh of the bundled packages. MORE – Juno launches faster when you have a lot of packages installed. – A range of stability fixes, including crashes in the code editor, with the iPad keyboard, and when shutting down a kernel.

What's New in Juno 4.1.5: This update fixes a range of crashes and stability issues, along with a number of smaller interface fixes and polish. Juno 4 is our biggest update yet — here's everything new. CODING ASSISTANT – Code alongside an AI assistant in your notebooks and scripts. Bring your own OpenAI, Anthropic, or Gemini API key and stay in full control of your data and usage. PYTHON 3.13 – The built-in environment now runs Python 3.13, with every bundled package — NumPy, pandas, SciPy, Matplotlib, OpenCV, and more — updated along with it. NEW WAYS TO RUN – Python REPL: run code interactively at a prompt — standalone, or drop in after running a script or project. – Project mode: open a folder as a project with a file tree, multiple editor tabs, and a project-aware assistant. – Object Inspector: browse the variables, functions, and imports defined in your session. – Output sidebar: keep previews, the console, a browser, and the inspector side by side. PYTHON MEETS iOS – New juno modules reach the clipboard, Keychain, device info, location, motion, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth — plus native dialogs, full-screen previews, and an Objective-C bridge. – Run Python files and code from Shortcuts and Siri, and keep long-running scripts and sessions going in the background. MORE – A built-in browser for local web servers and HTML, with view-source and console-log forwarding. – One editor for code and text, with syntax highlighting and the coding assistant for both. – Faster package search, collapsible cells, auto-scrolling notebooks, a customizable keyboard toolbar, redesigned settings, and a wide range of fixes and polish. Editing notebooks and files is now free. Running code is a Pro feature — and you can try it, and every other Pro feature, free before you buy.

What's New in Juno 4.1.4: HTML files now open in a live web view: pages run their JavaScript and load their own stylesheets, images, and scripts. This update also fixes installing certain packages from source, moving files in the project tree, and a range of stability issues. Juno 4 is our biggest update yet — here's everything new. CODING ASSISTANT – Code alongside an AI assistant in your notebooks and scripts. Bring your own OpenAI, Anthropic, or Gemini API key and stay in full control of your data and usage. PYTHON 3.13 – The built-in environment now runs Python 3.13, with every bundled package — NumPy, pandas, SciPy, Matplotlib, OpenCV, and more — updated along with it. NEW WAYS TO RUN – Python REPL: run code interactively at a prompt — standalone, or drop in after running a script or project. – Project mode: open a folder as a project with a file tree, multiple editor tabs, and a project-aware assistant. – Object Inspector: browse the variables, functions, and imports defined in your session. – Output sidebar: keep previews, the console, a browser, and the inspector side by side. PYTHON MEETS iOS – New juno modules reach the clipboard, Keychain, device info, location, motion, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth — plus native dialogs, full-screen previews, and an Objective-C bridge. – Run Python files and code from Shortcuts and Siri, and keep long-running scripts and sessions going in the background. MORE – A built-in browser for local web servers and HTML, with view-source and console-log forwarding. – One editor for code and text, with syntax highlighting and the coding assistant for both. – Faster package search, collapsible cells, auto-scrolling notebooks, a customizable keyboard toolbar, redesigned settings, and a wide range of fixes and polish. Editing notebooks and files is now free. Running code is a Pro feature — and you can try it, and every other Pro feature, free before you buy.

What's New in Juno 4.1.3: This update includes under-the-hood fixes and improves overall stability. Juno 4 is our biggest update yet — here's everything new. CODING ASSISTANT – Code alongside an AI assistant in your notebooks and scripts. Bring your own OpenAI, Anthropic, or Gemini API key and stay in full control of your data and usage. PYTHON 3.13 – The built-in environment now runs Python 3.13, with every bundled package — NumPy, pandas, SciPy, Matplotlib, OpenCV, and more — updated along with it. NEW WAYS TO RUN – Python REPL: run code interactively at a prompt — standalone, or drop in after running a script or project. – Project mode: open a folder as a project with a file tree, multiple editor tabs, and a project-aware assistant. – Object Inspector: browse the variables, functions, and imports defined in your session. – Output sidebar: keep previews, the console, a browser, and the inspector side by side. PYTHON MEETS iOS – New juno modules reach the clipboard, Keychain, device info, location, motion, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth — plus native dialogs, full-screen previews, and an Objective-C bridge. – Run Python files and code from Shortcuts and Siri, and keep long-running scripts and sessions going in the background. MORE – A built-in browser for local web servers and HTML, with view-source and console-log forwarding. – One editor for code and text, with syntax highlighting and the coding assistant for both. – Faster package search, collapsible cells, auto-scrolling notebooks, a customizable keyboard toolbar, redesigned settings, and a wide range of fixes and polish. Editing notebooks and files is now free. Running code is a Pro feature — and you can try it, and every other Pro feature, free before you buy.

What's New in Juno 4.1.2: This update fixes several crashes and improves overall stability. Juno 4 is our biggest update yet — here's everything new. CODING ASSISTANT – Code alongside an AI assistant in your notebooks and scripts. Bring your own OpenAI, Anthropic, or Gemini API key and stay in full control of your data and usage. PYTHON 3.13 – The built-in environment now runs Python 3.13, with every bundled package — NumPy, pandas, SciPy, Matplotlib, OpenCV, and more — updated along with it. NEW WAYS TO RUN – Python REPL: run code interactively at a prompt — standalone, or drop in after running a script or project. – Project mode: open a folder as a project with a file tree, multiple editor tabs, and a project-aware assistant. – Object Inspector: browse the variables, functions, and imports defined in your session. – Output sidebar: keep previews, the console, a browser, and the inspector side by side. PYTHON MEETS iOS – New juno modules reach the clipboard, Keychain, device info, location, motion, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth — plus native dialogs, full-screen previews, and an Objective-C bridge. – Run Python files and code from Shortcuts and Siri, and keep long-running scripts and sessions going in the background. MORE – A built-in browser for local web servers and HTML, with view-source and console-log forwarding. – One editor for code and text, with syntax highlighting and the coding assistant for both. – Faster package search, collapsible cells, auto-scrolling notebooks, a customizable keyboard toolbar, redesigned settings, and a wide range of fixes and polish. Editing notebooks and files is now free. Running code is a Pro feature — and you can try it, and every other Pro feature, free before you buy.

What's New in Juno 4: This update also makes installing packages more reliable: packages that bundle extra data files now install correctly, and you can find a package by its import name — like sklearn, cv2, or PIL. Juno 4 is our biggest update yet — here's everything new. CODING ASSISTANT – Code alongside an AI assistant in your notebooks and scripts. Bring your own OpenAI, Anthropic, or Gemini API key and stay in full control of your data and usage. PYTHON 3.13 – The built-in environment now runs Python 3.13, with every bundled package — NumPy, pandas, SciPy, Matplotlib, OpenCV, and more — updated along with it. NEW WAYS TO RUN – Python REPL: run code interactively at a prompt — standalone, or drop in after running a script or project. – Project mode: open a folder as a project with a file tree, multiple editor tabs, and a project-aware assistant. – Object Inspector: browse the variables, functions, and imports defined in your session. – Output sidebar: keep previews, the console, a browser, and the inspector side by side. PYTHON MEETS iOS – New juno modules reach the clipboard, Keychain, device info, location, motion, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth — plus native dialogs, full-screen previews, and an Objective-C bridge. – Run Python files and code from Shortcuts and Siri, and keep long-running scripts and sessions going in the background. MORE – A built-in browser for local web servers and HTML, with view-source and console-log forwarding. – One editor for code and text, with syntax highlighting and the coding assistant for both. – Faster package search, collapsible cells, auto-scrolling notebooks, a customizable keyboard toolbar, redesigned settings, and a wide range of fixes and polish. Editing notebooks and files is now free. Running code is a Pro feature — and you can try it, and every other Pro feature, free before you buy.

What's New in 4.1: Juno 4 is our biggest update yet — here's everything new. CODING ASSISTANT – Code alongside an AI assistant in your notebooks and scripts. Bring your own OpenAI, Anthropic, or Gemini API key and stay in full control of your data and usage. PYTHON 3.13 – The built-in environment now runs Python 3.13, with every bundled package — NumPy, pandas, SciPy, Matplotlib, OpenCV, and more — updated along with it. NEW WAYS TO RUN – Python REPL: run code interactively at a prompt — standalone, or drop in after running a script or project. – Project mode: open a folder as a project with a file tree, multiple editor tabs, and a project-aware assistant. – Object Inspector: browse the variables, functions, and imports defined in your session. – Output sidebar: keep previews, the console, a browser, and the inspector side by side. PYTHON MEETS iOS – New juno modules reach the clipboard, Keychain, device info, location, motion, contacts, reminders, photos, sound, notifications, sharing, and Bluetooth — plus native dialogs, full-screen previews, and an Objective-C bridge. – Run Python files and code from Shortcuts and Siri, and keep long-running scripts and sessions going in the background. MORE – A built-in browser for local web servers and HTML, with view-source and console-log forwarding. – One editor for code and text, with syntax highlighting and the coding assistant for both. – Faster package search, collapsible cells, auto-scrolling notebooks, a customizable keyboard toolbar, redesigned settings, and a wide range of fixes and polish. Editing notebooks and files is now free. Running code is a Pro feature — and you can try it, and every other Pro feature, free before you buy.

What's New in 3.10: – The Python source editor now supports resizable sidebars on iPad. – Improved kernel management and reliability. – Fixed crashes and bugs related to notebook previews. – Fixed issues with bookmarks and file locations in iCloud.

What’s New in 3.9: – Added a new way to try out Pro features before upgrading. – Fixed several crashes and bugs when executing code, along with a few layout issues.

What’s New in 3.8: – Shortcuts support: create Shortcuts that run Python code or .py scripts in Juno—pass arguments and files, capture output, and chain actions. – Text editor: edit source code, scripts, JSON, XML and other text-based formats in a built-in plain text editor without upgrading to Juno Pro. – Fixed several crashes and bugs when executing code, as well as a few layout issues in the app.

What’s New in 3.7: – App localisations: Juno now supports German, French, Spanish, Russian, Japanese, and Simplified Chinese. – Added support for CJK and Cyrillic fonts in Matplotlib. – Fixed several crashes and minor layout issues.

What’s New in 3.6: – Added the curl_cffi package, fixing recent releases of yfinance. – Improved keyboard navigation in the Python source editor. – The ‘webbrowser’ module now allows opening links in both the in-app and default system browser (using the ‘new’ parameter). – Fixed several crashes and addressed a few minor UI and layout issues in the app.

What’s New in 3.5: – New packages: astropy, jiter (improves compatibility with recent OpenAI package releases). – Unpins the bokeh package, which can now be installed or upgraded in the package manager. – Fixes several crashes and errors originating from scipy. – Fixes a crash related to code completion. – Addresses several minor UI and layout issues in the app.

What’s New in 3.4: – Adds OpenCV package. – Fixes several crashes related to code completion in the Python source editor. – Resolves an issue where certain file types sometimes wouldn’t appear in the file browser. – Fixes an issue where unit tests in Python source files weren’t detected. – Addresses several minor UI and layout issues in the package manager.

What's new in 3.3: – Improves package manager compatibility, adding support for certain packages that previously failed to install (e.g., PyTensor). – Fixes several crashes in the Python runtime. – Fixes handling of line endings in the Python source editor, which could sometimes cause broken comment toggling. – Adds hardware keyboard shortcuts in the Python source editor (hold the ⌘ Command key to view all available shortcuts). – Applies various UI touch-ups and improvements throughout the app.

What's new in 3.2: – Adds orjson, optree, ml_dtypes and psutil packages. – Optimises runtime resources, so Juno now takes up less device storage and installs more quickly. – Improves handling of console output when running Python scripts. – Fixes several crashes in the Python runtime.