Licensing and Edition Clarity¶

Scope: Repository licensing and edition differentiation (LeafRTP Lite vs. LeafRTP Pro). Related: ADR-108 (All-MIT Licensing; Pro as Support), ADR-100 (Technical Parity and Pro as SLA & Support Tier), ADR-061 (superseded), ADR-024 (superseded), ADR-069 (Claim Addon Extraction), LICENSE, LICENSE-MIT.

1. Executive Summary¶

RTP is MIT-licensed (ADR-108):

All source is MIT. Every module, platform adapter, the network/proxy modules, and both binaries (LeafRTP (Lite) and LeafRTP Pro) are licensed under the MIT License (root LICENSE, identical to LICENSE-MIT). Anyone can use, modify, distribute, or bundle them, commercially or non-commercially.
Pro is a service, not a licence. Buying Pro grants no additional copyright rights; it buys priority/SLA support routing, early-access builds, and sponsorship (ADR-100).
More specific grants win. NeoForge platform components and carrier modules are licensed under GPL-3.0-or-later (neoforge.mods.toml). Addon modules that ship their own licence keep it.
Earlier releases. Releases published before 2026-10-05 keep the licence they shipped with (ADR-061 open-core terms); MIT is strictly more permissive, so no licensee loses rights.

2. License Matrix by Module and Artifact¶

Module / Component	License	Permitted Commercial Usage	Governed By
`rtp-api`, `rtp-core`	MIT	Yes	`LICENSE` / `rtp-api/LICENSE` / `rtp-core/LICENSE`
SPI modules (`commands-api`, `effects-api`, `maps-api`, `metrics-api`, `anvil-api`, `tags-api`, `yaml-api`)	MIT	Yes	`LICENSE`
Platform Adapters (Spigot/Paper, Folia, Fabric)	MIT	Yes	`LICENSE`
Network & Proxy Modules (plugin-message transport, `RespRedisClient`, SQL/Redis bindings, `rtp-proxy-*`)	MIT	Yes	`LICENSE`
SQL Persistence & Pool (SQLite / H2 / MySQL / PostgreSQL accessors, in-house pool per ADR-101)	MIT	Yes	`LICENSE`
Safety Tag / Predicate Grammar (`SafetyTokenParser`, `SafetyTokenExpander`; offline `tags-api` resolver)	MIT	Yes	`LICENSE`
Login Reserve Cache (`LoginCacheTask`, ADR-023)	MIT	Yes	`LICENSE`
NeoForge Carrier & Adapters (`rtp-neoforge-*`)	GPL-3.0-or-later	Yes (per GPL terms)	`neoforge.mods.toml`
Bundled Addons (`LeafRTPClaimAddon`, `LeafRTPGuiAddon`, `LeafRTPCountdownAddon`, `LeafRTPActionAddon`)	MIT unless the addon ships its own licence	Yes	Bundled in both Lite and Pro jars
LeafRTP Lite Jar (`LeafRTP-<version>.jar`)	MIT	Yes	`LICENSE-MIT` (bundled inside jar as `LICENSE`)
LeafRTP Pro Jar (`LeafRTP-Pro-<version>.jar`)	MIT	Yes	root `LICENSE` (bundled inside jar)

3. Edition Feature Comparison (Lite vs. Pro)¶

As detailed in ADR-100, ADR-108, and ADR-069. Both jars ship the same code; the editions differ only in support and release cadence.

Feature / Capability	LeafRTP (Lite)	LeafRTP Pro	Notes
License	MIT	MIT	Lite jar bundles `LICENSE-MIT`; Pro jar ships the identical root `LICENSE`.
Support	Community	Priority / SLA	Routed via marketplace buyer metadata (ADR-100).
Release cadence	Stable milestones	Early access	ADR-100 section 2.3.
Single-Server Random Teleport	Yes	Yes	Identical Archimedean spiral and Hilbert curve candidate selection.
Paper & Spigot Support	Yes	Yes	Full native async chunk loading via Paper adapter.
Fabric Support	Yes	Yes	Supported across 1.20.x, 1.21.x, and MC 26.x unobf carriers.
NeoForge Support	Yes	Yes	Supported across 1.21.x and MC 26.x; carrier bytecode merged into both jars.
Folia Support	Yes	Yes	Both editions ship the native `rtp-folia` adapter (ADR-100).
Storage / Persistence	Full (SQLite / H2 / MySQL / PostgreSQL / Redis / YAML)	Full (SQLite / H2 / MySQL / PostgreSQL / Redis / YAML)	Both editions support the complete database suite and the in-house connection pool (ADR-100, ADR-101).
Cross-Server / Network Mode	Full (Plugin-Message + Redis / SQL)	Full (Plugin-Message + Redis / SQL)	Both editions support zero-dependency `RespRedisClient` and multi-server proxy synchronization (ADR-100).
Login Reserve Cache (ADR-023)	Yes	Yes	Pre-warms a dedicated queue for join-time teleports (`rtp.onevent.join`); `LoginCacheTask` retained in Lite (ADR-100).
Safety Lists & Predicates	Full grammar	Full grammar	`#tag`, `[...]` predicates and `-` subtraction resolve against the live server tag registry in both editions (`rtp-api` / `rtp-core`; `SAFETY.md`).
Claim Plugin Integrations	Yes (bundled addon)	Yes (bundled addon)	Both editions bundle `LeafRTPClaimAddon.jar` in `bundled-addons/` (self-extracting).
Economy / Vault Charging	Yes	Yes	Optional per-region teleport charging supported in both editions (`economy.yml` shipped).
PlaceholderAPI (PAPI) Integration	Yes	Yes	Supported in both editions when PlaceholderAPI is present.
Multilingual Support (`/rtp lang`)	Yes	Yes	Complete `lang/**` locale trees and ADR-020 runtime switching included in both.
Interactive Book & Map Menus	Yes	Yes	Maps API and book rendering available across both editions.
Anvil Prefilter (ADR-016, ADR-077)	Yes	Yes	Off-tick chunk prefiltering enabled in both editions (`rtp-anvil` retained in Lite). Other region formats require an addon reader.
Operator Documentation Extraction	Yes	Yes	Both extract identical version-stamped `docs/**` via `JarUtils.extractDocs`.
Configuration Files Parity	Yes	Yes	Lite inherits Pro `config.yml`, `advanced/*`, and definitions verbatim (ADR-024 amendment).
bStats Anonymous Telemetry	Plugin ID 12277	Plugin ID 30865	Distinct metrics tracking IDs preserve separate install base analytics.

4. Verification and Compliance¶

Build-Time License Auditing: The Gradle task :rtp-plugin:liteJarStructureCheck inspects the built Lite jar to verify that LICENSE contains the MIT terms (and no PolyForm text), while Folia, LoginCacheTask, SQL and Redis are retained per ADR-100.
Network Transport Integrity: The build audit verifies that the tier-1 PluginMessageNetworkBinding and proxy auto-detection classes, as well as the native RespRedisClient transport bindings, are preserved in Lite per ADR-100.
Third-Party Dependency Compliance: The plugin jars shade no third-party library (ADR-077); dependencies are audited via CycloneDX SBOM generation (bom.json) on every release. LZ4 region decode is in-house code (ADR-016 section 15); lz4-java is a test-scope dependency only and is not shipped.