history

Launcher manager and stale callback fix

id: LK-20260626-launcher-manager-and-stale-callback-fix
date: 2026-06-26
sequence: 13
type: fix
compatibility: compatible
component: `labkit_launcher` | `1.0.0 -> 1.1.0`
component: `labkit_launcher` | `1.1.0 -> 1.1.1`
component: `labkit.ui` | `3.0.0 -> 3.0.1`
scope: Launcher manager and stale callback fix

Context

The launcher could update LabKit but did not offer an explicit choice among a recent release, a tag, and the main branch. Separately, image drag tools could leave old callbacks attached after an interaction ended.

Decision and rationale

Add a managed version selector backed by an install manifest, and make image interaction cleanup restore or release every temporary callback. Both changes reduce hidden state that otherwise survives beyond the user's selected action.

Changes

• labkit_launcher 1.0.0 -> 1.1.1
• labkit.ui 3.0.0 -> 3.0.1

• Added the launcher version manager and managed-manifest requirement.
• Released stale image drag callbacks.

User and data impact

Users could deliberately install a supported release or development revision. Ending an image drag no longer left the figure responding to an obsolete tool. Saved app data did not change.

Compatibility and migration

Existing launcher installations remained usable. Managed installations needed the launcher manifest for version replacement; image editors required no saved- data conversion after their stale callbacks were released.

Validation

The listed commits added launcher-manager/manifest coverage and regression checks for image callback cleanup. Exact historical commands were not recorded.

Evidence

• Main commits fe8654c9, ef89cf77, and 3d23b7f1.

Known limitations and follow-up

Version selection still depended on network access for remote revisions; already installed local versions remained usable offline.