Merge origin/main (Spring Boot 4, Jackson 3, Gradle 9.6)

The branch had not built or run CI since its first commit, because main moved to
Spring Boot 4 underneath it. Four things in this changeset needed updating:

- the Jackson Kotlin module moved to tools.jackson.module.kotlin
- Sentry's Spring integration is now io.sentry.spring7
- AutoConfigureMockMvc moved to org.springframework.boot.webmvc.test.autoconfigure
- JsonNode no longer maps as a plain Iterable, so the session id list reads
  through values()

The schema conflict is both sides appending changesets; main's run first, as
they already have in production. The translation files were regenerated rather
than hand-merged.

Author: JanCizmar

.github/actions/setup-env/action.yaml

@@ -32,7 +32,7 @@ runs:
       if: "${{ inputs.java == 'true' }}"
       uses: actions/setup-java@v4
       with:
-        java-version: 21
+        java-version: 25
         distribution: temurin
 
     - name: Setup Gradle

.github/workflows/prerelease-alpha.yml

@@ -14,7 +14,7 @@ jobs:
 
       - uses: actions/setup-java@v3
         with:
-          java-version: 21
+          java-version: 25
           distribution: adopt
 
       - name: Setup node

.github/workflows/preview.yml

@@ -16,7 +16,7 @@ jobs:
 
       - uses: actions/setup-java@v3
         with:
-          java-version: 21
+          java-version: 25
           distribution: adopt
 
       - name: Setup node

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
 
       - uses: actions/setup-java@v3
         with:
-          java-version: 21
+          java-version: 25
           distribution: adopt
 
       - name: Setup node

CHANGELOG.md

@@ -1,3 +1,17 @@
+## [3.216.2](https://github.com/tolgee/tolgee-platform/compare/v3.216.1...v3.216.2) (2026-08-04)
+
+
+### Bug Fixes
+
+* default isBatch on the legacy translate endpoint under Jackson 3 ([#3840](https://github.com/tolgee/tolgee-platform/issues/3840)) ([748f7c1](https://github.com/tolgee/tolgee-platform/commit/748f7c1f3e8ab103097b5516290558b4e684fb08)), closes [#3804](https://github.com/tolgee/tolgee-platform/issues/3804)
+
+## [3.216.1](https://github.com/tolgee/tolgee-platform/compare/v3.216.0...v3.216.1) (2026-08-04)
+
+
+### Bug Fixes
+
+* strip structural newlines from plural source in AI translator prompt ([#3830](https://github.com/tolgee/tolgee-platform/issues/3830)) ([b435134](https://github.com/tolgee/tolgee-platform/commit/b435134d8640d093865707f2e30122bcad6d8b46))
+
 # [3.216.0](https://github.com/tolgee/tolgee-platform/compare/v3.215.0...v3.216.0) (2026-08-03)
 
 

backend/api/build.gradle

@@ -27,13 +27,13 @@ apply plugin: 'io.spring.dependency-management'
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
+        languageVersion = JavaLanguageVersion.of(javaVersion.toInteger())
     }
 }
 
 kotlin {
     compilerOptions {
-        freeCompilerArgs.addAll("-Xjsr305=strict")
+        freeCompilerArgs.addAll("-Xjsr305=strict", "-Xannotation-default-target=param-property")
     }
 }
 
@@ -59,6 +59,7 @@ dependencies {
     implementation libs.springDocWebmvcApi
     implementation libs.springDocOpenApiUi
     implementation libs.redissonSpringBootStarter
+    implementation libs.redissonSpringCache
 
     /**
      * Misc

backend/api/src/main/kotlin/io/tolgee/api/v2/controllers/suggestion/MtResultStreamer.kt

@@ -1,6 +1,5 @@
 package io.tolgee.api.v2.controllers.suggestion
 
-import com.fasterxml.jackson.databind.ObjectMapper
 import io.sentry.Sentry
 import io.tolgee.constants.MtServiceType
 import io.tolgee.dtos.cacheable.ProjectDto
@@ -27,6 +26,7 @@ import kotlinx.coroutines.runBlocking
 import org.springframework.context.ApplicationContext
 import org.springframework.security.core.context.SecurityContextHolder
 import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody
+import tools.jackson.databind.ObjectMapper
 import java.io.OutputStream
 import java.io.OutputStreamWriter
 

backend/api/src/main/kotlin/io/tolgee/component/EnumNameKryo5Codec.kt

@@ -10,8 +10,11 @@ class EnumNameKryo5Codec : Kryo5Codec {
   /** Redisson reflectively requires a `(ClassLoader, <this exact type>)` constructor to rebind the codec. */
   constructor(classLoader: ClassLoader?, codec: EnumNameKryo5Codec) : super(classLoader, codec)
 
-  override fun createKryo(classLoader: ClassLoader?): Kryo {
-    return super.createKryo(classLoader).apply {
+  override fun createKryo(
+    classLoader: ClassLoader?,
+    useReferences: Boolean,
+  ): Kryo {
+    return super.createKryo(classLoader, useReferences).apply {
       addDefaultSerializer(Enum::class.java, EnumNameSerializer::class.java)
     }
   }

backend/api/src/main/kotlin/io/tolgee/component/KeyComplexEditHelper.kt

@@ -1,6 +1,5 @@
 package io.tolgee.component
 
-import com.fasterxml.jackson.databind.ObjectMapper
 import io.tolgee.activity.ActivityHolder
 import io.tolgee.activity.data.ActivityType
 import io.tolgee.constants.Message
@@ -28,6 +27,7 @@ import io.tolgee.util.executeInNewRepeatableTransaction
 import org.springframework.context.ApplicationContext
 import org.springframework.transaction.PlatformTransactionManager
 import org.springframework.transaction.TransactionDefinition
+import tools.jackson.databind.ObjectMapper
 import kotlin.properties.Delegates
 
 class KeyComplexEditHelper(

backend/api/src/main/kotlin/io/tolgee/component/ProjectLastModifiedManager.kt

@@ -36,7 +36,7 @@ class ProjectLastModifiedManager(
    * - Cache-Control header set to max-age=0 to ensure validation on each request
    *
    */
-  fun <T> onlyWhenProjectDataChanged(
+  fun <T : Any> onlyWhenProjectDataChanged(
     request: WebRequest,
     fn: (
       /**