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🚧 Preview · The current public packages are still in preview and may continue to change. Always pin an exact version instead of relying on latest/.

Release Notes

This page lists the currently published engine SDK package versions, download links, and checksums in IGP Developer Docs.

Each version has a fixed download link and matching SHA256SUMS. For production projects, always pin an exact version instead of using latest.

To see the concrete changes in each version, read Changelog.

Current latest versions: Unity 0.1.6, Unity Cloud Archive 0.1.4, GameMaker 0.0.6.

0.1.6 highlights:

  • Unity hosted data-plane attach is now single-flight per roomId + playerId, preventing duplicate descriptor requests and repeated KCP session replacement.
  • Unity Direct KCP only becomes connected after kcp_handshake_ack; reconnect closes the old KCP session first, retries with 500ms -> 1s -> 2s, and discards stale attempt callbacks.
  • Cloud Archive remains independently versioned at 0.1.4; current public versions are Unity 0.1.6, Unity Cloud Archive 0.1.4, and GameMaker 0.0.6.

After downloading, you can use SHA256SUMS to verify the file:

Terminal window
sha256sum -c SHA256SUMS

On Windows you can also compare hashes with PowerShell:

Get-FileHash -Algorithm SHA256 .\cn.indiegp.sdk.unity-0.1.6.unitypackage
Version File Download
0.1.6 cn.indiegp.sdk.unity-0.1.6.unitypackage Download
0.1.6 cn.indiegp.sdk.unity.mirror-transport-0.1.6.unitypackage (optional) Download
0.1.6 cn.indiegp.sdk.unity.compliance-0.1.6.unitypackage (optional) Download
0.1.6 cn.indiegp.sdk.unity.lying-bottle-0.1.6.unitypackage (optional) Download
0.1.6 cn.indiegp.sdk.unity.cloud-archive-0.1.4.unitypackage (optional) Download
0.1.6 SHA256SUMS View
0.1.5 cn.indiegp.sdk.unity-0.1.5.unitypackage Download
0.1.5 cn.indiegp.sdk.unity.mirror-transport-0.1.5.unitypackage (optional) Download
0.1.5 cn.indiegp.sdk.unity.compliance-0.1.5.unitypackage (optional) Download
0.1.5 cn.indiegp.sdk.unity.lying-bottle-0.1.5.unitypackage (optional) Download
0.1.5 cn.indiegp.sdk.unity.cloud-archive-0.1.4.unitypackage (optional) Download
0.1.5 SHA256SUMS View
0.1.4 cn.indiegp.sdk.unity-0.1.4.unitypackage Download
0.1.4 cn.indiegp.sdk.unity.mirror-transport-0.1.4.unitypackage (optional) Download
0.1.4 cn.indiegp.sdk.unity.compliance-0.1.4.unitypackage (optional) Download
0.1.4 cn.indiegp.sdk.unity.lying-bottle-0.1.4.unitypackage (optional) Download
0.1.4 cn.indiegp.sdk.unity.cloud-archive-0.1.4.unitypackage (optional) Download
0.1.4 SHA256SUMS View
0.1.3 cn.indiegp.sdk.unity-0.1.3.unitypackage Download
0.1.3 cn.indiegp.sdk.unity.mirror-transport-0.1.3.unitypackage (optional) Download
0.1.3 cn.indiegp.sdk.unity.compliance-0.1.3.unitypackage (optional) Download
0.1.3 cn.indiegp.sdk.unity.lying-bottle-0.1.3.unitypackage (optional) Download
0.1.3 cn.indiegp.sdk.unity.cloud-archive-0.1.4.unitypackage (optional) Download
0.1.3 SHA256SUMS View
0.1.0 cn.indiegp.sdk.unity-0.1.0.unitypackage Download
0.1.0 cn.indiegp.sdk.unity.mirror-transport-0.1.0.unitypackage (optional) Download
0.1.0 cn.indiegp.sdk.unity.compliance-0.1.0.unitypackage (optional) Download
0.1.0 cn.indiegp.sdk.unity.lying-bottle-0.1.0.unitypackage (optional) Download
0.1.0 SHA256SUMS View
Version File Download
0.0.6 igp-gamemaker-sdk-0.0.6.zip (preview) Download
0.0.6 SHA256SUMS View
  • Usage: after extracting the zip, open samples/gamemaker/windows-auth-achievements/project/IGP.WindowsAuthAchievements.yyp in GameMaker. See GameMaker Quick Start.

The Godot adapter has not been publicly released yet. See Godot Overview.

The Unreal adapter has not started yet.

Suggested upgrade rules while the packages are still in preview:

  • Pin versions: record the exact Unity or GameMaker SDK version in use. Do not point to latest/.
  • Keep a copy of old packages: back up previous .unitypackage or .zip files before upgrading so rollback stays easy.
  • Verify the download: run sha256sum -c SHA256SUMS after downloading to confirm the file is intact.
  • Expect breaking changes: preview patch releases may still contain breaking changes. Release notes will call those out when they happen.