From 01b57d3a01c2c628b5559e020bc1b85583d7495c Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Fri, 14 Nov 2025 05:38:44 +0000
Subject: [PATCH 1/2] fix(client): multi-value header serialization

---
 .../kotlin/org/onebusaway/client/okhttp/OkHttpClient.kt     | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/onebusaway-sdk-java-client-okhttp/src/main/kotlin/org/onebusaway/client/okhttp/OkHttpClient.kt b/onebusaway-sdk-java-client-okhttp/src/main/kotlin/org/onebusaway/client/okhttp/OkHttpClient.kt
index b44599f..5fbc8eb 100644
--- a/onebusaway-sdk-java-client-okhttp/src/main/kotlin/org/onebusaway/client/okhttp/OkHttpClient.kt
+++ b/onebusaway-sdk-java-client-okhttp/src/main/kotlin/org/onebusaway/client/okhttp/OkHttpClient.kt
@@ -111,19 +111,19 @@ class OkHttpClient private constructor(private val okHttpClient: okhttp3.OkHttpC
 
         val builder = Request.Builder().url(toUrl()).method(method.name, body)
         headers.names().forEach { name ->
-            headers.values(name).forEach { builder.header(name, it) }
+            headers.values(name).forEach { builder.addHeader(name, it) }
         }
 
         if (
             !headers.names().contains("X-Stainless-Read-Timeout") && client.readTimeoutMillis != 0
         ) {
-            builder.header(
+            builder.addHeader(
                 "X-Stainless-Read-Timeout",
                 Duration.ofMillis(client.readTimeoutMillis.toLong()).seconds.toString(),
             )
         }
         if (!headers.names().contains("X-Stainless-Timeout") && client.callTimeoutMillis != 0) {
-            builder.header(
+            builder.addHeader(
                 "X-Stainless-Timeout",
                 Duration.ofMillis(client.callTimeoutMillis.toLong()).seconds.toString(),
             )

From 9f9a9a8ce1244c3f0ed5f02776f1640483b28949 Mon Sep 17 00:00:00 2001
From: "stainless-app[bot]"
 <142633134+stainless-app[bot]@users.noreply.github.com>
Date: Fri, 14 Nov 2025 05:39:01 +0000
Subject: [PATCH 2/2] release: 0.1.0-alpha.42

---
 .release-please-manifest.json |  2 +-
 CHANGELOG.md                  |  8 ++++++++
 README.md                     | 10 +++++-----
 build.gradle.kts              |  2 +-
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 9c28aae..859ebd3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.1.0-alpha.41"
+  ".": "0.1.0-alpha.42"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec969ce..3c764eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.1.0-alpha.42 (2025-11-14)
+
+Full Changelog: [v0.1.0-alpha.41...v0.1.0-alpha.42](https://github.com/OneBusAway/java-sdk/compare/v0.1.0-alpha.41...v0.1.0-alpha.42)
+
+### Bug Fixes
+
+* **client:** multi-value header serialization ([01b57d3](https://github.com/OneBusAway/java-sdk/commit/01b57d3a01c2c628b5559e020bc1b85583d7495c))
+
 ## 0.1.0-alpha.41 (2025-09-26)
 
 Full Changelog: [v0.1.0-alpha.40...v0.1.0-alpha.41](https://github.com/OneBusAway/java-sdk/compare/v0.1.0-alpha.40...v0.1.0-alpha.41)
diff --git a/README.md b/README.md
index 22dc52e..824610b 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/org.onebusaway/onebusaway-sdk-java)](https://central.sonatype.com/artifact/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.41)
-[![javadoc](https://javadoc.io/badge2/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.41/javadoc.svg)](https://javadoc.io/doc/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.41)
+[![Maven Central](https://img.shields.io/maven-central/v/org.onebusaway/onebusaway-sdk-java)](https://central.sonatype.com/artifact/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.42)
+[![javadoc](https://javadoc.io/badge2/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.42/javadoc.svg)](https://javadoc.io/doc/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.42)
 
 <!-- x-release-please-end -->
 
@@ -15,7 +15,7 @@ It is generated with [Stainless](https://www.stainless.com/).
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [developer.onebusaway.org](https://developer.onebusaway.org). Javadocs are available on [javadoc.io](https://javadoc.io/doc/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.41).
+The REST API documentation can be found on [developer.onebusaway.org](https://developer.onebusaway.org). Javadocs are available on [javadoc.io](https://javadoc.io/doc/org.onebusaway/onebusaway-sdk-java/0.1.0-alpha.42).
 
 <!-- x-release-please-end -->
 
@@ -26,7 +26,7 @@ The REST API documentation can be found on [developer.onebusaway.org](https://de
 ### Gradle
 
 ```kotlin
-implementation("org.onebusaway:onebusaway-sdk-java:0.1.0-alpha.41")
+implementation("org.onebusaway:onebusaway-sdk-java:0.1.0-alpha.42")
 ```
 
 ### Maven
@@ -35,7 +35,7 @@ implementation("org.onebusaway:onebusaway-sdk-java:0.1.0-alpha.41")
 <dependency>
   <groupId>org.onebusaway</groupId>
   <artifactId>onebusaway-sdk-java</artifactId>
-  <version>0.1.0-alpha.41</version>
+  <version>0.1.0-alpha.42</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 9651f9f..0b13a55 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "org.onebusaway"
-    version = "0.1.0-alpha.41" // x-release-please-version
+    version = "0.1.0-alpha.42" // x-release-please-version
 }
 
 subprojects {