Kit Updated: 2026.6.23 - Kit Programming Language

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This post covers Kit v2026.6.23. The notes below come from the release tag history and the project changelog.

Kit 2026.6.23 is a tooling, WASM, and package-doc refresh. It adds Kit Game project helpers, exposes formatter and fold support in the browser playground build, improves type checker aliasing and suggestions, preserves parallel worker error details, and adds small helpers across Option, Map, and Set.

Release Snapshot

Release: v2026.6.23
Date: June 23, 2026
Changelog entries since v2026.6.22: 9
Primary areas: Kit Game, WASM playground, type checker, parallel errors, Option/Map/Set helpers, package docs, CI

What Changed

The playground-facing WASM build now exposes formatter and fold support, so the browser experience can use the same formatting path and structural code folding support as the local toolchain. The playground interpreter binary was rebuilt from this release so kit version reports 2026.6.23.

Type checking gets a focused aliasing and suggestions pass, and parallel worker failures now preserve their useful error details instead of flattening them away. The standard library also gets convenience helpers for Option, Map, and Set.

The package docs were regenerated from the current first-party package set. This release adds kit-egui to the published package docs and the homepage library list, alongside the existing GUI, graphics, and game packages.

Thanks to Alvydas ( avitkauskas) for reporting the type-sig static environment, UInt32 annotation and IP conversion, numeric exactness, REPL type-checking, and native wrapper linking issues addressed in this release.

The release also restores the GitLab test stage after the release bump, keeping the CI path aligned with the current release branch.

Release Highlights

Add Kit Game project helpers.
Expose formatter and fold support in the WASM playground build.
Improve type checker aliasing and suggestions.
Preserve parallel worker error details.
Add Option, Map, and Set helper APIs.
Regenerate package docs, including the new kit-egui package page.
Restore the GitLab test stage.

Release Commits

The list below uses the v2026.6.22..v2026.6.23 changelog range, with each short SHA linked to the corresponding GitLab commit in kit-lang.

feat: add Kit Game project helpers (863ff3c)
test: cover codegen cache source identity (c3ac977)
feat: expose formatter and fold support in wasm (a7bdade)
feat: improve type checker aliasing and suggestions (cec5130)
fix: preserve parallel worker error details (5cfc3f0)
feat: add option map and set helpers (ec090a8)
Fix GitLab workitems 281-286 (ac8cb11)
chore(release): bump version to 2026.6.23 (67f3290)
fix(ci): restore GitLab test stage (1419c30)