PlayerDataSyncReloaded 26.10-ALPHA.001 — Fabric 1.20.1 – 26.2

Alpha build. Compiles and passes the unit tests; not yet exercised on a live network. Test on a staging server first.

File

PlayerDataSyncReloaded-Fabric-26.10-ALPHA.001.jar — one jar for every supported line. On start the mod reads the Minecraft version from Fabric Loader and activates the matching adapter:

Config: config/playerdatasync.properties, created on first start. Use MariaDB, PostgreSQL or MongoDB — the MySQL driver is not bundled; the MariaDB driver connects to MySQL servers.

Distribution

• Now a separate download covering all Minecraft lines. Previously a single-line Fabric jar shipped inside the Paper jar as bundled/playerdatasync-fabric.jar.

Fixed (all lines)

• Mod jar was not standalone: it contained only the adapter classes and failed on load with NoClassDefFoundError. :api, :common and the runtime libraries (HikariCP, MariaDB/PostgreSQL drivers, Mongo driver, Jedis) are now shaded in. Gson and SLF4J are left out because Minecraft ships them.
• Health 0 killed the player on the next server: quitting on the death screen saved health = 0, which was applied on join. Health is only applied when it is above 0.

Added (all lines)

• Save on shutdown: SERVER_STOPPING saves every online player; SERVER_STOPPED closes storage after the writes have finished. Storage was never closed before.
• Disconnect now clears the player's per-session sync state, like the other platforms.

Sync core (shared by all platforms)

• Redis auto-reconnect: the subscriber ran on a common-pool thread and died silently when the connection dropped, so other servers stopped receiving reload notifications. It now runs on its own thread and reconnects every 5 s.
• Encryption failure no longer writes plaintext: if CryptoUtil.encrypt throws, the save fails instead of storing unencrypted JSON (SQL and Mongo).
• Exact unchanged-check: skipping a save because "nothing changed" now compares the full serialized inventory instead of String#hashCode, so a hash collision can no longer drop a changed inventory.
• SyncManager#handleQuit returns a CompletableFuture that completes when the write is done; new saveAll and markLoaded for shutdown/reload handling.
• Includes the 26.9 ordering fixes: loads are serialized per player, saves are refused until the stored profile has been applied, a record that is already applied is not re-applied, and failed SQL writes are counted and retried instead of being cached as "unchanged".

Known issues

• Feature parity per line
  • 1.20.1 and 1.21.4: no Ender Chest, potion effects, attributes, advancements, statistics.
  • 26.1 and 26.2: no advancements, statistics.
• Fabric does not answer the Velocity save handshake yet. The proxy waits the full timeout once per Fabric server and then stops waiting on it.