Product Updates

Node.js SDK

Node.js Client SDK [Beta]: v0.18.8

[ADDED] an optional mediaType on watched attachments, and a withAttachmentContext helper that exposes an AttachmentContext for custom attachment logic. (PR #975, #985)

June 10, 2026

React Native SDK

React Native Client SDK: v1.35.4

[ADDED] an optional mediaType on watched attachments, and a withAttachmentContext helper that exposes an AttachmentContext for custom attachment logic. (PR #975, #985)

June 10, 2026

JavaScript/Web SDK

JavaScript Web Client SDK: v1.38.3

[ADDED] an optional mediaType on watched attachments and a withAttachmentContext helper for custom attachment logic. [FIXED] a createDiffTrigger deadlock on the default web (single-connection) setup. (PR #975, #985, #989)

June 10, 2026

PowerSync Service Convex

Announcing Convex Backend Support (Experimental)

Convex is now a supported source for PowerSync, available as an experimental release. Add offline-first behavior, optimistic updates, and partial sync to a Convex app.

June 10, 2026

Swift SDK

PowerSync Swift SDK: v1.14.3

[FIXED] An upload error could leave the client stuck in a `Delaying due to previously encountered CRUD item` retry loop, so local changes never uploaded. (PR #145)

June 10, 2026

Kotlin SDK

PowerSync Kotlin SDK: v1.13.0

"[BREAKING CHANGE] Aligning with Kotlin and Androidx multiplatform libraries, this release removes support for x86_64 Apple targets (iosX64(), macosX64(), tvosX64() and watchosX64()). (PR #353)

June 8, 2026

PowerSync Service

PowerSync Service: v1.22.0

Version 1.22.0 adds experimental Convex replication and an opt-in SQLite expression engine for Sync Streams, runs MongoDB initial snapshots concurrently with streaming replication on storage v3+, and skips the redundant current_data copy for Postgres tables with REPLICA IDENTITY FULL. It also fixes a MongoDB checkpoint stall and several Sync Streams expression bugs.

June 4, 2026

PowerSync Dashboard

Searchable Instance Logs in the PowerSync Dashboard

Until now, finding the right entries in the PowerSync Dashboard's instance logs meant scrolling the feed or using browser search. That works for the last...

May 29, 2026

Swift SDK

Swift SDK 1.14.0: Now Pure Swift

For this release, we've re-implemented the Swift SDK in pure Swift (it was based on a binary XCFramework of our Kotlin SDK in previous versions). This...

May 27, 2026

Dart/Flutter SDK

Dart/Flutter Client SDK: v2.2.0

[IMPROVED] On the web, OPFS is now used on Safari even without special headers. The SDK will re-use existing web databases to avoid a data loss, see the docs. To make use of this feature, update web workers with dart run powersync:setup_web after upgrading. (PR #422)

May 27, 2026