diff --git a/demos/django-todolist/ios/Podfile.lock b/demos/django-todolist/ios/Podfile.lock
index 49f7e3e1..c47483fd 100644
--- a/demos/django-todolist/ios/Podfile.lock
+++ b/demos/django-todolist/ios/Podfile.lock
@@ -3,10 +3,10 @@ PODS:
   - path_provider_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
-  - powersync-sqlite-core (0.2.1)
+  - powersync-sqlite-core (0.3.0)
   - powersync_flutter_libs (0.0.1):
     - Flutter
-    - powersync-sqlite-core (~> 0.2.1)
+    - powersync-sqlite-core (~> 0.3.0)
   - shared_preferences_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
@@ -56,8 +56,8 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   path_provider_foundation: 2b6b4c569c0fb62ec74538f866245ac84301af46
-  powersync-sqlite-core: 38ead13d8b21920cfbc79e9b3415b833574a506d
-  powersync_flutter_libs: 9d26987384a376a18879b9d4fa71629407683163
+  powersync-sqlite-core: ad0e70e23bacd858fe2e79032dc4aabdf972d1bd
+  powersync_flutter_libs: 064c44b51fb07df9486b735fb96ab7608a89e18b
   shared_preferences_foundation: fcdcbc04712aee1108ac7fda236f363274528f78
   sqlite3: 0bb0e6389d824e40296f531b858a2a0b71c0d2fb
   sqlite3_flutter_libs: c00457ebd31e59fa6bb830380ddba24d44fbcd3b
diff --git a/demos/django-todolist/pubspec.lock b/demos/django-todolist/pubspec.lock
index 17e5c860..435b5a6d 100644
--- a/demos/django-todolist/pubspec.lock
+++ b/demos/django-todolist/pubspec.lock
@@ -310,7 +310,7 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/demos/supabase-anonymous-auth/pubspec.lock b/demos/supabase-anonymous-auth/pubspec.lock
index 16bfb8f8..604d76a1 100644
--- a/demos/supabase-anonymous-auth/pubspec.lock
+++ b/demos/supabase-anonymous-auth/pubspec.lock
@@ -366,7 +366,7 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/demos/supabase-edge-function-auth/pubspec.lock b/demos/supabase-edge-function-auth/pubspec.lock
index 2f3efcbe..8020c20e 100644
--- a/demos/supabase-edge-function-auth/pubspec.lock
+++ b/demos/supabase-edge-function-auth/pubspec.lock
@@ -390,7 +390,7 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/demos/supabase-simple-chat/pubspec.lock b/demos/supabase-simple-chat/pubspec.lock
index bc3ade92..90706a8d 100644
--- a/demos/supabase-simple-chat/pubspec.lock
+++ b/demos/supabase-simple-chat/pubspec.lock
@@ -406,7 +406,7 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/demos/supabase-todolist-drift/ios/Podfile.lock b/demos/supabase-todolist-drift/ios/Podfile.lock
index 1e0a0e14..58930a79 100644
--- a/demos/supabase-todolist-drift/ios/Podfile.lock
+++ b/demos/supabase-todolist-drift/ios/Podfile.lock
@@ -7,10 +7,10 @@ PODS:
   - path_provider_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
-  - powersync-sqlite-core (0.1.6)
+  - powersync-sqlite-core (0.3.0)
   - powersync_flutter_libs (0.0.1):
     - Flutter
-    - powersync-sqlite-core (~> 0.1.6)
+    - powersync-sqlite-core (~> 0.3.0)
   - shared_preferences_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
@@ -73,8 +73,8 @@ SPEC CHECKSUMS:
   camera_avfoundation: dd002b0330f4981e1bbcb46ae9b62829237459a4
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   path_provider_foundation: 2b6b4c569c0fb62ec74538f866245ac84301af46
-  powersync-sqlite-core: 4c38c8f470f6dca61346789fd5436a6826d1e3dd
-  powersync_flutter_libs: 5d6b132a398de442c0853a8b14bfbb62cd4ff5a1
+  powersync-sqlite-core: ad0e70e23bacd858fe2e79032dc4aabdf972d1bd
+  powersync_flutter_libs: 064c44b51fb07df9486b735fb96ab7608a89e18b
   shared_preferences_foundation: fcdcbc04712aee1108ac7fda236f363274528f78
   sqlite3: 292c3e1bfe89f64e51ea7fc7dab9182a017c8630
   sqlite3_flutter_libs: c00457ebd31e59fa6bb830380ddba24d44fbcd3b
diff --git a/demos/supabase-todolist-drift/pubspec.lock b/demos/supabase-todolist-drift/pubspec.lock
index 7038b5e6..0ec6cd3e 100644
--- a/demos/supabase-todolist-drift/pubspec.lock
+++ b/demos/supabase-todolist-drift/pubspec.lock
@@ -686,14 +686,14 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_attachments_helper:
     dependency: "direct main"
     description:
       path: "../../packages/powersync_attachments_helper"
       relative: true
     source: path
-    version: "0.6.6"
+    version: "0.6.8"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/demos/supabase-todolist-optional-sync/ios/Podfile.lock b/demos/supabase-todolist-optional-sync/ios/Podfile.lock
index e8797ed4..042d832d 100644
--- a/demos/supabase-todolist-optional-sync/ios/Podfile.lock
+++ b/demos/supabase-todolist-optional-sync/ios/Podfile.lock
@@ -7,10 +7,10 @@ PODS:
   - path_provider_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
-  - powersync-sqlite-core (0.2.1)
+  - powersync-sqlite-core (0.3.0)
   - powersync_flutter_libs (0.0.1):
     - Flutter
-    - powersync-sqlite-core (~> 0.2.1)
+    - powersync-sqlite-core (~> 0.3.0)
   - shared_preferences_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
@@ -73,8 +73,8 @@ SPEC CHECKSUMS:
   camera_avfoundation: 759172d1a77ae7be0de08fc104cfb79738b8a59e
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   path_provider_foundation: 2b6b4c569c0fb62ec74538f866245ac84301af46
-  powersync-sqlite-core: 38ead13d8b21920cfbc79e9b3415b833574a506d
-  powersync_flutter_libs: 9d26987384a376a18879b9d4fa71629407683163
+  powersync-sqlite-core: ad0e70e23bacd858fe2e79032dc4aabdf972d1bd
+  powersync_flutter_libs: 064c44b51fb07df9486b735fb96ab7608a89e18b
   shared_preferences_foundation: fcdcbc04712aee1108ac7fda236f363274528f78
   sqlite3: 0bb0e6389d824e40296f531b858a2a0b71c0d2fb
   sqlite3_flutter_libs: c00457ebd31e59fa6bb830380ddba24d44fbcd3b
diff --git a/demos/supabase-todolist-optional-sync/pubspec.lock b/demos/supabase-todolist-optional-sync/pubspec.lock
index 94989050..90bd3ae2 100644
--- a/demos/supabase-todolist-optional-sync/pubspec.lock
+++ b/demos/supabase-todolist-optional-sync/pubspec.lock
@@ -470,7 +470,7 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/demos/supabase-todolist/ios/Podfile.lock b/demos/supabase-todolist/ios/Podfile.lock
index 37a18d32..0d87f356 100644
--- a/demos/supabase-todolist/ios/Podfile.lock
+++ b/demos/supabase-todolist/ios/Podfile.lock
@@ -7,10 +7,10 @@ PODS:
   - path_provider_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
-  - powersync-sqlite-core (0.2.1)
+  - powersync-sqlite-core (0.3.0)
   - powersync_flutter_libs (0.0.1):
     - Flutter
-    - powersync-sqlite-core (~> 0.2.1)
+    - powersync-sqlite-core (~> 0.3.0)
   - shared_preferences_foundation (0.0.1):
     - Flutter
     - FlutterMacOS
@@ -73,8 +73,8 @@ SPEC CHECKSUMS:
   camera_avfoundation: dd002b0330f4981e1bbcb46ae9b62829237459a4
   Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
   path_provider_foundation: 2b6b4c569c0fb62ec74538f866245ac84301af46
-  powersync-sqlite-core: 38ead13d8b21920cfbc79e9b3415b833574a506d
-  powersync_flutter_libs: 9d26987384a376a18879b9d4fa71629407683163
+  powersync-sqlite-core: ad0e70e23bacd858fe2e79032dc4aabdf972d1bd
+  powersync_flutter_libs: 064c44b51fb07df9486b735fb96ab7608a89e18b
   shared_preferences_foundation: fcdcbc04712aee1108ac7fda236f363274528f78
   sqlite3: 0bb0e6389d824e40296f531b858a2a0b71c0d2fb
   sqlite3_flutter_libs: c00457ebd31e59fa6bb830380ddba24d44fbcd3b
diff --git a/demos/supabase-todolist/pubspec.lock b/demos/supabase-todolist/pubspec.lock
index dc4739a4..126ecef0 100644
--- a/demos/supabase-todolist/pubspec.lock
+++ b/demos/supabase-todolist/pubspec.lock
@@ -470,14 +470,14 @@ packages:
       path: "../../packages/powersync"
       relative: true
     source: path
-    version: "1.8.2"
+    version: "1.8.4"
   powersync_attachments_helper:
     dependency: "direct main"
     description:
       path: "../../packages/powersync_attachments_helper"
       relative: true
     source: path
-    version: "0.6.6"
+    version: "0.6.8"
   powersync_flutter_libs:
     dependency: "direct overridden"
     description:
diff --git a/melos.yaml b/melos.yaml
index 04072adc..1a04f0a1 100644
--- a/melos.yaml
+++ b/melos.yaml
@@ -89,7 +89,7 @@ scripts:
 
   test:web:
     description: Run web tests in a specific package.
-    run: dart test -p chrome
+    run: dart test -p chrome --concurrency=1
     exec:
       concurrency: 1
     packageFilters:
diff --git a/packages/powersync/bin/setup_web.dart b/packages/powersync/bin/setup_web.dart
index d7b427d1..a18abde1 100644
--- a/packages/powersync/bin/setup_web.dart
+++ b/packages/powersync/bin/setup_web.dart
@@ -90,8 +90,10 @@ void main(List<String> arguments) async {
 }
 
 bool coreVersionIsInRange(String tag) {
-  //Sets the range of powersync core version that is compatible with the sqlite3 version
-  VersionConstraint constraint = VersionConstraint.parse('>=0.2.0 <0.3.0');
+  // Sets the range of powersync core version that is compatible with the sqlite3 version
+  // We're a little more selective in the versions chosen here than the range
+  // we're compatible with.
+  VersionConstraint constraint = VersionConstraint.parse('>=0.3.0 <0.4.0');
   List<String> parts = tag.split('-');
   String powersyncPart = parts[1];
 
diff --git a/packages/powersync/lib/src/database/powersync_db_mixin.dart b/packages/powersync/lib/src/database/powersync_db_mixin.dart
index 7f66cf5f..05e5bae0 100644
--- a/packages/powersync/lib/src/database/powersync_db_mixin.dart
+++ b/packages/powersync/lib/src/database/powersync_db_mixin.dart
@@ -104,13 +104,15 @@ mixin PowerSyncDatabaseMixin implements SqliteConnection {
           version.split(RegExp(r'[./]')).take(3).map(int.parse).toList();
     } catch (e) {
       throw SqliteException(1,
-          'Unsupported powersync extension version. Need ^0.2.0, got: $version. Details: $e');
+          'Unsupported powersync extension version. Need >=0.2.0 <1.0.0, got: $version. Details: $e');
     }
 
-    // Validate ^0.2.0
-    if (versionInts[0] != 0 || versionInts[1] != 2 || versionInts[2] < 0) {
+    // Validate >=0.2.0 <1.0.0
+    if (versionInts[0] != 0 ||
+        (versionInts[1] < 2) ||
+        (versionInts[1] == 2 && versionInts[2] < 0)) {
       throw SqliteException(1,
-          'Unsupported powersync extension version. Need ^0.2.0, got: $version');
+          'Unsupported powersync extension version. Need >=0.2.0 <1.0.0, got: $version');
     }
   }
 
diff --git a/packages/powersync_flutter_libs/android/build.gradle b/packages/powersync_flutter_libs/android/build.gradle
index cfde045d..4c9607a4 100644
--- a/packages/powersync_flutter_libs/android/build.gradle
+++ b/packages/powersync_flutter_libs/android/build.gradle
@@ -50,5 +50,5 @@ android {
 }
 
 dependencies {
-    implementation 'co.powersync:powersync-sqlite-core:0.2.1'
+    implementation 'co.powersync:powersync-sqlite-core:0.3.0'
 }
diff --git a/packages/powersync_flutter_libs/ios/powersync_flutter_libs.podspec b/packages/powersync_flutter_libs/ios/powersync_flutter_libs.podspec
index d8ad8e47..7e321b34 100644
--- a/packages/powersync_flutter_libs/ios/powersync_flutter_libs.podspec
+++ b/packages/powersync_flutter_libs/ios/powersync_flutter_libs.podspec
@@ -22,7 +22,7 @@ A new Flutter FFI plugin project.
   s.dependency 'Flutter'
   s.platform = :ios, '11.0'
 
-  s.dependency "powersync-sqlite-core", "~> 0.2.1"
+  s.dependency "powersync-sqlite-core", "~> 0.3.0"
 
   # Flutter.framework does not contain a i386 slice.
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
diff --git a/packages/powersync_flutter_libs/macos/powersync_flutter_libs.podspec b/packages/powersync_flutter_libs/macos/powersync_flutter_libs.podspec
index 32d1d829..8a9a7a10 100644
--- a/packages/powersync_flutter_libs/macos/powersync_flutter_libs.podspec
+++ b/packages/powersync_flutter_libs/macos/powersync_flutter_libs.podspec
@@ -21,7 +21,7 @@ A new Flutter FFI plugin project.
   s.source_files     = 'Classes/**/*'
   s.dependency 'FlutterMacOS'
 
-  s.dependency "powersync-sqlite-core", "~> 0.2.1"
+  s.dependency "powersync-sqlite-core", "~> 0.3.0"
 
   s.platform = :osx, '10.11'
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
diff --git a/scripts/download_core_binary_demos.dart b/scripts/download_core_binary_demos.dart
index 723e31c2..7196e18c 100644
--- a/scripts/download_core_binary_demos.dart
+++ b/scripts/download_core_binary_demos.dart
@@ -3,7 +3,7 @@
 import 'dart:io';
 
 final coreUrl =
-    'https://github.com/powersync-ja/powersync-sqlite-core/releases/download/v0.2.1';
+    'https://github.com/powersync-ja/powersync-sqlite-core/releases/download/v0.3.0';
 
 void main() async {
   final powersyncLibsLinuxPath = "packages/powersync_flutter_libs/linux";
diff --git a/scripts/init_powersync_core_binary.dart b/scripts/init_powersync_core_binary.dart
index 87298e93..42648d15 100644
--- a/scripts/init_powersync_core_binary.dart
+++ b/scripts/init_powersync_core_binary.dart
@@ -6,7 +6,7 @@ import 'dart:io';
 import 'package:melos/melos.dart';
 
 final sqliteUrl =
-    'https://github.com/powersync-ja/powersync-sqlite-core/releases/download/v0.2.1';
+    'https://github.com/powersync-ja/powersync-sqlite-core/releases/download/v0.3.0';
 
 void main() async {
   final sqliteCoreFilename = getLibraryForPlatform();