Incantation 0.10.2 — servers stop turning players away

Mostly server-side fixes, and two of them matter whether or not you noticed anything was wrong.

Your server no longer requires the mod on clients

A server running Incantation was rejecting every player who did not also have it installed — with an "Incompatible" screen on NeoForge, and a bare "Connection closed - mismatched mod channel list" on Forge. It also advertised itself as incompatible in the multiplayer list, so people saw a red X before they even tried.

Nothing this mod sends is client-bound, so that requirement bought a server nothing.

Players with Incantation voice-cast exactly as before. Players without it now join and play normally — they simply cannot voice-cast. That is the only thing they lose.

To voice-cast yourself you still need it on both sides: the client owns the microphone, the server validates and performs the cast.

Server config controls were being ignored on NeoForge

serverBlockedSpells, the allowlist, maxCastsPerSecond and castMode had no effect on voice casts on NeoForge. An operator could ban a spell, see it listed as banned in the config, and have it voice-cast anyway. The voice_cast advancements, the admin log and /voicespells follow were skipped on the same path.

The cause: voice casts took Iron's Spells' own packet, so this mod's server side never saw them. Forge was unaffected. If you run a NeoForge server and set any of those options, they start working in this release — which may change behaviour you had grown used to.

Fixed

• The first-run mic check could never see your microphone. The wizard runs at the title screen, and a fix in 0.10.0 that stopped the mic opening there also stopped it opening for the check itself — so it said "Talk into your mic now" while guaranteeing silence.
• A modified client could disconnect itself with an "Internal Exception" and a stack trace in the server log, by sending a malformed spell id. NeoForge only; Forge already handled it.
• Cooldown and "is casting" hints never worked. They resolved against an Iron's Spells class that does not exist, so every lookup failed silently.
• Server-side state was never released. Cast history, follow subscribers and the leaderboard persisted for the life of the process. In single-player that meant one world's data leaking into the next.
• pack_format on 1.21.1 was a version that does not exist.

Changed

• The casting screen edges are off by default. Those accent bars have never actually rendered in any released version — the reflection behind them was broken from the start. Fixing that switched them on for the first time, which nobody asked for, so they are now castVignette in the client config, default off.

Requirements

Unchanged: Minecraft 1.21.1 (NeoForge 21.1.x) or 1.20.1 (Forge 47.x), Iron's Spells 'n Spellbooks, Curios API, and a microphone. No voice-chat mod.