Lyric

A statically typed application language with a bytecode VM — standalone, and embeddable in a host with a capability-based sandbox.

What changed in v2.15.0 — 2026-08-22

Two small things off the list before v3, both of the same kind: something written in the source that the compiler looked past.

A :: list takes interfaces only. struct S :: [Vec2] was SKIPPED — the entry resolved to something that is not an interface, and the check moved on. The declaration claimed a conformance nothing verified and nothing reported, which is the quietest way for a mistake to survive a compiler. It is LYR-SEM0078 now, on struct, class, enum and extend alike; the code already meant exactly this for an interface's parent list, so the catalogue entry is widened rather than a second number spent on the same sentence.

An interface member may carry @Deprecated. It was refused because a conformance question had no answer: do implementations inherit the clock?

They do not. A use that resolves to the interface's member warns; an implementation does not — an implementation is not a use, and a conforming type MUST implement what the interface requires, so a warning there could not be acted on without breaking conformance. A call on a concrete receiver resolves to the concrete method, which is its own declaration and carries its own deprecation or none.

The member restriction is unchanged: only @Deprecated, because the module format has no member rows. An attribute on the interface DECLARATION is still refused.

Two tests that pinned the old refusal now pin the new rule. They were right to exist: that is what a pin is for — it made the change a decision instead of a drift.