Product Updates

CLI

PowerSync CLI: v0.9.5

[ADDED] powersync compact to trigger compaction on the linked PowerSync Cloud instance and reclaim sync bucket storage. Supports an optional --timeout=<minutes> flag (default 30, use 0 to wait indefinitely) for long-running compactions on large buckets.

May 21, 2026

JavaScript/Web SDK

JavaScript Web Client SDK: v1.38.1

[FIXED] Checksum verification errors caused by a race condition in the Rust sync client where sync lines could be dropped during local-write-plus-sync flows. (PR #960)

May 14, 2026

React Native SDK

React Native Client SDK: v1.35.1

[IMPROVED] Removed the JavaScript sync client. The Rust-based sync client is now the only option from this version. (PR #938) [IMPROVED] Removed the experimental designation from raw tables APIs. These APIs are now considered stable. (PR #931)

May 14, 2026

PowerSync Service

Sync Streams Are Now Generally Available

We are excited to announce that Sync Streams have advanced from beta to GA - APIs are stable, and they've proven themselves in production. They are a core...

May 14, 2026

PowerSync Service

PowerSync Service: v1.21.0

We are pleased to announce the release of version 1.21.0 of the PowerSync Service . The PowerSync Service is published to Docker Hub as...

May 14, 2026

Node.js SDK

Node.js Client SDK [Beta]: v0.18.6

[FIXED] Checksum verification errors caused by a race condition in the Rust sync client where sync lines could be dropped during local-write-plus-sync flows. (PR #960)

May 14, 2026

.NET SDK

PowerSync .NET SDK: v0.1.2 (Beta)

[ADDED] Attachment APIs: AttachmentQueue manages offline-first file attachment sync (upload, download, delete, archive), mirroring the implementation in our other SDKs. Register a watched query and supply local and remote storage adapters; the queue handles the full lifecycle automatically. See the docs. (PR #68) [ADDED] Mac Catalyst support. The SDK now targets net9.0-maccatalyst and the setup script downloads the Mac Catalyst xcframework automatically. (PR #64)

May 7, 2026

Kotlin Multiplatform SDK

PowerSync Kotlin SDK: v1.12.0

[IMPROVED] Native Apple platforms: the SQLite core extension is now linked directly into the SDK - no external dependency required. Remove any references to https://github.com/powersync-ja/powersync-sqlite-core-swift.git (Swift Package) or the powersync-sqlite-core CocoaPod from your project. This also fixes dyld crashes on iOS after SDK updates. (PR #344) [IMPROVED] The Kotlin sync client implementation was removed. The more performant Rust-based sync client is now the only implementation. (PR #342)

May 6, 2026

Flutter SDK

Dart/Flutter Client SDK: v2.1.0

[ADDED] A Dart and Flutter DevTools extension in the powersync package: inspect open PowerSyncDatabase instances while debugging See the docs. (PR #406)

May 5, 2026

Flutter SDK Flutter Packages/Libraries

PowerSync Dart/Flutter SDK v2.0

We've released v2.0 of the PowerSync Dart/Flutter SDK . This release is a new major version and is the result of a substantial internal refactor that...

April 13, 2026