release-1.0.0-test2.md

O2Lazer 1.0.0-test2

Frozen release record: this page describes the published 1.0.0-test2 build, not current master. The later compatibility coordinator, test bridge, inactive-volume fix and preview/replay tail restoration are master changes; they are not retroactively included in this release's validation or DLL. These maintenance changes are included in test3, whose public DLL excludes the test bridge. See the current documentation review.

The second 1.0.0 test release targets osu!lazer 2026.1005.0. The assembly version remains 1.0.0 to preserve ruleset identity; the release tag identifies this test build.

Changes since the first test release

• Separates OJN/OJM decoding and O2Jam gameplay rules into independent modules, with host storage, native integration and presentation boundaries checked automatically.
• Implements Mania Score using native mania scoring, health, statistics and PP. Carrying Easy, Hard Rock or Classic into O2Lazer selects Mania Score; non-MS play remains ineligible for PP.
• Reworks library updates, source-content identity, missing-source cleanup and deferred star calculation. Imported charts become available before the remaining star calculation finishes. Update counters use unique source content and animate from zero; clearing imports also reports progress.
• Reworks preview/gameplay audio, pause handling and replay seeking while preserving authored sample references and keeping musical samples independent of global effect volume and the hitsound toggle.
• Refines O2Jam judgement, LN presentation, randomisation and zero-life EX recording policies.
• Restores native difficulty presentation transitions while retaining O2Jam level colours and values.
• Tracks folder-collection ownership by native collection ID. Enabling folder collections now shows synchronisation and completion notifications. Untracked old collections are preserved.
• Fixes the optional Percy LN-body extension: correct column width, fixed-scale lower-half segments, no overlap with the first body span, and no enlarged final remainder. Disabled repair keeps native Mania rendering. The reported skin issue has passed user testing.
• Uses native 50 (HitResult.Meh) for O2Jam BAD judgements and statistics, so results and UR bars share native yellow without colour patches. Mania Score retains its native 100/50 keys; old O2Jam 100 statistics are not migrated.
• Removes the CI source checks' dependency on ripgrep; GitHub's Windows runner can execute them directly.

Install / upgrade

1. Close osu!lazer.
2. Download osu.Game.Rulesets.O2Lazer.dll and replace the previous DLL in your lazer data directory's rulesets folder. Keep backups outside that folder and install only one O2Lazer version.
3. Start lazer, select your library path in Settings → O2Jam, and run Update beatmaps. There is no need to clear imports first.

Keep the original .ojn and matching .ojm, .omc or .m30 files available. Existing scores are retained; pre-rewrite unmarked test replays are intentionally unsupported. Current replays use schema v5. SHA256SUMS.txt verifies the attached DLL.

Validation and remaining limits

• 1,385 filtered tests passed with no failures or skips; production/diagnostic dependency analysis found no compilation errors, boundary violations or stale exceptions.
• The maintenance commit passed GitHub Actions. Remote CI covers portable modules and the checker; full host analysis was performed locally against matching binaries.
• Seeking into the middle of an already-started short sample does not reconstruct its remaining audio.
• Old folder collections without ownership records remain untouched and may coexist with newly created collections bearing the same name; automatic adoption is not implemented.
• This is a prerelease, not a declaration that every skin, replay, library migration or host version has been validated. Remaining issues are recorded in the repository's architecture/review documents.

See the maintenance review, storage contract, and behaviour specification.