SDK Setup Guides
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Java
Release Notes
Ditto v4 for Java
java android updates version changelog
Released: Fri Dec 7, 2023
Improved
Performance by implementing bipartite distance-aware mesh topology. (#10632)
Improved
Memory usage and performance of Documents. (#10736)
Improved
Reduced metadata accumulation after eviction by clearing remote summaries. (#7065)
Improved
Serialization performance. (#9112)
Fixed
Made logging more robust to failed writes in a specific set of circumstances. (#10077)
Fixed
Addressed a warning from SQLite that sometimes occurs on startup about a schema change. (#10501)
Fixed
Presence graph may not show all active connections. (#10507)
Fixed
When observing peers, isConnectedToDittoCloud property may be incorrect. (#10534)
Fixed
Initial logging events now use the same format as all other logs. (#10611)
Fixed
Mesh could choose random connections. (#10711)
Fixed
A bug with Ditto's internal crash handler. (#10022)
Released: Fri Nov 17, 2023
Added
SDK version/language/platform and device name are now included in the small peer info document. (#10515)
Released: Thur Nov 2, 2023
Improved
Runtime validation of corrupted attachments being inserted into documents (#10552)
Fixed
An issue introduced in 4.4.2 where the Small Peer Info attachments were not replicated to the Portal. (#10538)
Released: Wed Nov 14, 2023
Improved
Runtime validation of corrupted attachments being inserted into documents
(#10552)
Fixed
An issue introduced in 4.4.2 where the Small Peer Info attachments were not replicated to the Portal. (#10538)
Fixed
Small Peer info collection now defaults to localPeerOnly, preventing data from being collected on the Big Peer until the feature is explicitly enabled and sync scope is set to bigPeerOnly. (#10203, #10204)
Fixed
Fixed: DittoCollection.upsert() and DittoScopedWriteTransaction.upsert() are now annotated to indicate that they can throw a DittoError (#10109)
Improved
BLE connection reliability on Android 13. (#10005)
Added
New smallPeerInfo property to Ditto class for access to the single DittoSmallPeerInfo class instance. (#9704)
Added
New DittoSmallPeerInfoSyncScope enum class. The smallPeerInfo collection's sync scope determines which "kind" of peers it will replicate to. Defaults to BigPeerOnly. (#9704, #9788)
Added
New ValidationError and InternalError classes to help diagnose issues. (#9704)
Added
More informative log message for query failures caused by database access errors. (#9364)
Added
Small peers now persist structured log data to disk for later retrieval, with limits on the resulting disk usage. (#9547)
Improved
Print some internal errors in a more human-readable format. (#9269)
Improved
TransportConfig and its associated types can be serialized/deserialized into/from JSON and CBOR. (#9585)
Improved
Sets a minimum session refresh period. The small peer will always try to start refreshing its session after 3 days no matter how long the session period issue. Previously the small peer would start to refresh after half of the session length had elapsed. (#9594, #9645)
Improved
Initial replication time by reducing one roundtrip of messages before peers can sync. (#9404)
Improved
Attachment fetch time in several edge case scenarios. (#9501)
Improved
efficiency by using less system resources when connected to peers but no replication changes are needing to be sent. (#9479, #7995)
Improved
Significantly reduced startup resource consumption linked to total document count. (#9501)
Fixed
A scenario where a peer could incorrectly receive data back from other peers even after they had modified their subscription and evicted the old data. (#9404)
Fixed
An issue where unusually high replication write load in large meshes could block all readers from reading the database. (#9395, #8872)"
Released: Thu Aug 10th 2023, 2:22 pm
Release Notes:
- Changed: Improved clarity of error messages when data on disk cannot be read by this version following a downgrade from a newer version of Ditto. (#9267)
- Changed: Print some internal errors in a more human-readable format. (#9495)
- Fixed: an issue that caused excessive multicast traffic over LAN transport. (#9398)
Installation:
implementation "live.ditto:ditto:4.3.1"
Released: Tue Jul 18th 2023, 10:02 pm
Release Notes:
⚠️ Warning: This SDK version will migrate some data formats on disk. Once upgraded to 4.3.0, an SDK can only be downgraded back to 4.2.2 and 4.2.1 but no earlier. Downgrading to versions earlier than 4.2.1 will require uninstalling and re-installing to clear out the new data formats. (#8946)
- Added: Nullable
- Added: An internal ability to measure & report the level of redundancy in replication updates to calculate the percentage of updates that are arriving from multiple peers. This will be used for future self-balancing mesh actions which are not yet enabled. (#8937)
- Changed: new serialization format improves efficiency of replication, particularly in the Big Peer. (#8946)
- Changed: Better logging for diagnosing auth failures. (#8984)
- Changed: Improved replication performance by introducing a small internal caching layer for commonly computed values. (#8777)
- Fixed: The replication engine can now recover from certain filesystem corruption issues during sync instead of panicking. (#8965)
- Fixed: Increased validation of document updates, preventing updates that try to modify the document id. (#9063)
Installation:
implementation "live.ditto:ditto:4.3.0"
Released: Wed Jul 5th 2023, 3:32 pm
Release Notes:
- Synchronized version bump release
Installation:
implementation "live.ditto:ditto:4.2.3"
Released: Tue Jul 4th 2023, 10:42 am
Release Notes:
- Improved mesh performance when using 50+ Small Peer devices (#9077)
- Changed: Improved deserialization performance of Documents. (#9123)
- Changed: Improved reliability of LAN sync when using large numbers of devices. (#8901)
- Fixed: Increased validation of document updates, preventing updates that try to modify the document id. (#9129)
- Fixed: Removed outdated ERROR level log statements in Ditto store related to
- Fixed: The
- Fixed: a potential crash if a document attachment was malformed (#9045)
Installation:
implementation "live.ditto:ditto:4.2.2"
Released: Tue Jun 13th 2023, 3:47 pm
Release Notes:
- Fixed: a possible crash due to serialisation when upgrading from version 4.1.0 or 4.1.1 (#8925)
Installation:
implementation "live.ditto:ditto:4.2.1"
Released: Tue Jun 13th 2023, 1:53 am
Release Notes:
- Added: Experimental support for disk encryption. This API is experimental for the time being and is likely to change in the next couple of releases. (#8847)
- Added:
- Changed: the existing
- Changed: Improved replication uses compressed message stream to decrease bandwidth consumption. (#8807)
- Changed: Reduce verbosity in replication logs (#8370)
- Changed: Improved support for IPv6 Wi-Fi Aware connections (#8518)
- Fixed: Ditto store errors now include more details instead of just an object description. (#8730)
- Fixed: WiFi-Aware P2P connections are now more stable when more than two peers are nearby. (#8598)
- Fixed: Exception TooManyRequests when using WiFi-Aware transport is now handled correctly by the SDK. (#8598)
Installation:
implementation "live.ditto:ditto:4.2.0"
Released: Thu May 18th 2023, 11:35 pm
Release Notes:
- Fixed: Devices with hostnames longer than 35 bytes will no longer fail to sync over LAN.
- Fixed: Crash when logging out.
Installation:
implementation "live.ditto:ditto:4.1.1"
Released: Fri Apr 28th 2023, 11:52 am
Release Notes:
- Added:
- Changed:
- Changed:
- Changed: (Experimental) Query Overlap Groups, Bus: a breaking protocol change for upcoming improvements. Peers using older versions will not be able to connect with newer peers until they upgrade.
- Fixed: Improved stability when transferring large updates over Bluetooth LE
- Fixed: A replication issue where certain cases that should have reset the replication session with a remote peer would instead temporarily terminate the connection while not resetting the session.
- Fixed: A replication issue that could cause failed convergence on small number of documents if updates are being received during a local eviction.
- Security: Enforce immediate disconnection of any connected peers whose certificate expires during a sync session.
Installation:
implementation "live.ditto:ditto:4.1.0"
Released: Tue Apr 18th 2023, 1:22 am
Release Notes:
- Improvements to Bluetooth connection reliability on Linux
Installation:
implementation "live.ditto:ditto:4.0.3-alpha.linux-ble-fixes-2"
Released: Mon Apr 17th 2023, 3:19 pm
Release Notes:
- Fixed: a replication issue that could cause failed convergence on small number of documents if updates are being received during a local eviction.
- Improvements to Bluetooth connection reliability on Linux
Installation:
implementation "live.ditto:ditto:4.0.3-alpha.linux-ble-fixes"
Released: Thu Apr 20th 2023, 3:36 pm
Release Notes:
- Fixed: A replication issue where certain cases that should have reset the replication session with a remote peer would instead temporarily terminate the connection while not resetting the session.
- Fixed: Correct handling of reset and disable errors from receive_update
Installation:
implementation "live.ditto:ditto:4.0.2"
Released: Thu Apr 6th 2023, 11:54 am
Release Notes:
- Fixed: Resolved an issue with logging when the stdout is not available.
Installation:
implementation "live.ditto:ditto:4.0.1"
Released: Wed Mar 22nd 2023, 3:48 pm
Release Notes:
- Added: AddWins removes will now be used if
- Changed: If a problem occurs with an app's authentication webhook, the Small Peer that is trying to authenticate will log more detailed information for the developer.
- Changed: old multi-hop connections are now automatically disconnected when direct connections are established with peers, freeing up unneeded resources faster.
- Changed: reduced severity level for some routine log statements which were previously emitted at a WARN level.
- Fixed: some threads spawned by the SDK no longer wait up to 30 seconds before being stopped.
- Fixed: an issue which could cause Ditto to hang if more than 500 peers were encountered.
- Fixed: replication hanging under some circumstances, especially WebSocket connections to Big Peer
- Fixed: potential crash when stopping and restarting WiFi transport very rapidly
- Fixed: attempt to sync with the cloud before the user requests it with
- Removed: made a number of erroneously public constants and types internal or private.
Installation:
implementation "live.ditto:ditto:4.0.0"
Released: Thu Jan 26th 2023, 3:37 pm
Release Notes:
- Fixed: an issue which could cause Ditto to hang if more than 500 peers were encountered.
- Fixed: AddWins removes will now be used if
Installation:
implementation "live.ditto:ditto:4.0.0-beta1"
Released: Mon Jan 16th 2023, 2:16 pm
Release Notes:
- Added:
Installation:
implementation "live.ditto:ditto:4.0.0-alpha2"
Updated 14 Mar 2024
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