Shai Almog

Codename One App Shield turns Apple App Attest and Google Play Integrity into short-lived tokens your backend can verify. This release also adds OpenType fonts, advances the R2 repository migration, and prepares new Windows desktop builders.

Codename One’s third-generation GUI Builder keeps the guided layout work from the previous editor and rebuilds the workflow around Maven projects, live CSS, protected Java regions, and fast switching between forms.

Codename One Push V3 adds typed messages, managed credentials, segmentation, analytics, and Surface updates. Existing push apps should test the new cloud endpoint before next week’s cutover.

Codename One’s JavaScript port is now open source, available on every plan, and buildable locally without an account. ParparVM is the default, while TeaVM remains available through a build hint.

Codename One statically links its lightweight UI into your native app, so an OS update cannot silently redesign it. New native-reference fidelity tests let us adopt iOS 26 Liquid Glass and Material 3 on our schedule without surrendering control of the pixels.

ParparVM went from 4.21x slower than warmed Java 25 to geomean parity, with six of ten benchmarks at or below HotSpot and peak memory below the JVM’s. The architecture behind it: frameless C codegen, a BiBOP page heap, and a poor man’s Valhalla.

This week’s release adds car dashboards, motion sensors, desktop-class input, foldables, Commerce, Secrets, versioned builds, and real video generation while keeping last week’s open-source deal intact.

This week adds a privacy-first analytics API, a pure-vector map engine with pluggable native providers, Apple TV and Android TV support with CSS @media for form factors, rich text and code editors, and device integrity and app review APIs. It is also a good moment to explain how we fund the project without doing the thing open source so often does to you.

This week adds a native Linux desktop port, an Apple Watch and Wear OS port, a visual Game Builder with a high-level gaming API, and seamless crash protection that symbolicates native crashes and files them as GitHub issues. We also rebuilt the build cloud from the ground up.