ECHO SDK v1.0.0 RC2

SDK prerelease marker for the beta tester release train. Tags the current main branch with the extended content graph schemas for Ashfall worldgen/runtime metadata.

ECHO SDK 1.0.0-RC1

Native public SDK release candidate distribution. Includes echo-native-contracts, echoaddonapi, echoadaptercore, echo-native-testkit, and the SDK Gradle plugin with main, sources, and Javadoc jars. This prerelease is source-linked until workflow attestation/provenance is added.

ECHO SDK v0.1.0-sdk-alpha

ECHO SDK public alpha release.
Tag: v0.1.0-sdk-alpha
Role: Official developer preview SDK source: templates, samples, Gradle plugin, schema files, and public authoring docs.
This release is published for public alpha testing. It remains a prerelease and should not be treated as a stable production channel.