Prepare release 5.5.1

CHANGES.txt

@@ -1,3 +1,6 @@
+5.5.1 (May 22, 2026)
+- Fixed race condition in which killing the SDK process during first initialization could leave cache in an inconsistent state.
+
 5.5.0 (Jan 28, 2026)
 - Added functionality to provide metadata alongside SDK update, ready and ready from cache events. Read more in our docs.
 - Fixed issue in which TLS 1.2 was being forced for new connections.

build.gradle

@@ -20,7 +20,7 @@ if (rootProject.name == 'android-client') {
 }
 
 ext {
-    splitVersion = '5.5.0'
+    splitVersion = '5.5.1'
     jacocoVersion = '0.8.8'
 }
 

main/src/main/java/io/split/android/client/SplitClientConfig.java

@@ -13,9 +13,9 @@
 import javax.net.ssl.SSLSocketFactory;
 import javax.net.ssl.X509TrustManager;
 
-import io.split.android.client.main.BuildConfig;
 import io.split.android.client.impressions.ImpressionListener;
 import io.split.android.client.network.CertificatePinningConfiguration;
+import io.split.android.client.network.SdkVersionProvider;
 import io.split.android.client.network.DevelopmentSslConfig;
 import io.split.android.client.network.HttpProxy;
 import io.split.android.client.network.ProxyConfiguration;
@@ -242,7 +242,7 @@
 
         mUserConsent = userConsent;
 
-        splitSdkVersion = "Android-" + BuildConfig.SPLIT_VERSION_NAME;
+        splitSdkVersion = SdkVersionProvider.getSdkVersion();
 
         mShouldRecordTelemetry = shouldRecordTelemetry;
 

main/src/main/java/io/split/android/client/network/SdkVersionProvider.java

@@ -0,0 +1,10 @@
+package io.split.android.client.network;
+
+import io.split.android.client.main.BuildConfig;
+
+public class SdkVersionProvider {
+
+    public static String getSdkVersion() {
+        return "Android-" + BuildConfig.SPLIT_VERSION_NAME;
+    }
+}

main/src/main/java/io/split/android/client/service/workmanager/HttpClientProvider.java

@@ -6,14 +6,14 @@
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 
-import io.split.android.client.main.BuildConfig;
 import io.split.android.client.dtos.HttpProxyDto;
 import io.split.android.client.network.BasicCredentialsProvider;
 import io.split.android.client.network.BearerCredentialsProvider;
 import io.split.android.client.network.CertificatePinningConfiguration;
 import io.split.android.client.network.CertificatePinningConfigurationProvider;
 import io.split.android.client.network.HttpClient;
 import io.split.android.client.network.HttpClientImpl;
+import io.split.android.client.network.SdkVersionProvider;
 import io.split.android.client.network.HttpProxy;
 import io.split.android.client.network.SplitHttpHeadersBuilder;
 import io.split.android.client.storage.cipher.SplitCipherFactory;
@@ -43,7 +43,7 @@ private static HttpClient buildHttpClient(String apiKey, @Nullable CertificatePi
                 .build();
 
         SplitHttpHeadersBuilder headersBuilder = new SplitHttpHeadersBuilder();
-        headersBuilder.setClientVersion(BuildConfig.SPLIT_VERSION_NAME);
+        headersBuilder.setClientVersion(SdkVersionProvider.getSdkVersion());
         headersBuilder.setApiToken(apiKey);
         headersBuilder.addJsonTypeHeaders();
         httpClient.addHeaders(headersBuilder.build());

main/src/test/java/io/split/android/client/network/SdkVersionProviderTest.java

@@ -0,0 +1,21 @@
+package io.split.android.client.network;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class SdkVersionProviderTest {
+
+    @Test
+    public void getSdkVersionStartsWithAndroidPrefix() {
+        assertTrue(SdkVersionProvider.getSdkVersion().startsWith("Android-"));
+    }
+
+    @Test
+    public void getSdkVersionContainsNonEmptyVersionAfterPrefix() {
+        String version = SdkVersionProvider.getSdkVersion();
+        String suffix = version.substring("Android-".length());
+        assertFalse(suffix.isEmpty());
+    }
+}