diff --git a/.ci b/.ci
index 6f5cc7da9..e8a4c8f43 160000
--- a/.ci
+++ b/.ci
@@ -1 +1 @@
-Subproject commit 6f5cc7da9dec1dfda656893f827ba71ced946636
+Subproject commit e8a4c8f43974112581c2da0519074e8abae7d5fa
diff --git a/README-CHANGES.xml b/README-CHANGES.xml
index 065727614..cade7c391 100644
--- a/README-CHANGES.xml
+++ b/README-CHANGES.xml
@@ -298,7 +298,7 @@
         <c:change date="2023-08-12T00:00:00+00:00" summary="Fixed crash when time tracking is not enabled."/>
       </c:changes>
     </c:release>
-    <c:release date="2023-10-07T13:46:32+00:00" is-open="true" ticket-system="org.nypl.jira" version="1.6.0">
+    <c:release date="2023-10-11T19:26:14+00:00" is-open="false" ticket-system="org.nypl.jira" version="1.6.0">
       <c:changes>
         <c:change date="2023-08-24T00:00:00+00:00" summary="Updated Kotlin version to 1.9.0"/>
         <c:change date="2023-08-28T00:00:00+00:00" summary="Fixed crash when opening an audiobook with a null manifest."/>
@@ -329,7 +329,7 @@
         <c:change date="2023-09-21T00:00:00+00:00" summary="Added support to EPUB text searching."/>
         <c:change date="2023-09-22T00:00:00+00:00" summary="Added push notifications option to DEV settings."/>
         <c:change date="2023-09-26T00:00:00+00:00" summary="Fixed bookmarks not being deleted."/>
-        <c:change date="2023-10-07T13:46:32+00:00" summary="Fixed Audiobook UI freezing after pressing 'play'."/>
+        <c:change date="2023-10-07T00:00:00+00:00" summary="Fixed Audiobook UI freezing after pressing 'play'."/>
       </c:changes>
     </c:release>
   </c:releases>
diff --git a/build.gradle.kts b/build.gradle.kts
index c7bd9de89..b44be027a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -15,6 +15,8 @@ if (gradleVersionRequired != gradleVersionReceived) {
 }
 
 plugins {
+    signing
+
     id("org.jetbrains.kotlin.jvm")
         .version("1.9.0")
         .apply(false)
@@ -104,6 +106,14 @@ fun property(
     return project.extra[name] as String
 }
 
+fun propertyOptional(project: Project, name: String): String? {
+    val map = project.extra
+    if (map.has(name)) {
+        return map[name] as String?
+    }
+    return null
+}
+
 fun propertyInt(
     project: Project,
     name: String,
@@ -120,6 +130,15 @@ fun propertyBoolean(
     return text.toBooleanStrict()
 }
 
+fun propertyBooleanOptional(
+    project: Project,
+    name: String,
+    defaultValue: Boolean,
+): Boolean {
+    val value = propertyOptional(project, name) ?: return defaultValue
+    return value.toBooleanStrict()
+}
+
 /**
  * Configure Maven publishing. Artifacts are published to a local directory
  * so that they can be pushed to Maven Central in one step using brooklime.
@@ -138,6 +157,8 @@ fun configurePublishingFor(project: Project) {
 
     val publishSources =
         propertyBoolean(project, "org.thepalaceproject.build.publishSources")
+    val enableSigning =
+        propertyBooleanOptional(project, "org.thepalaceproject.build.enableSigning", true)
 
     /*
      * Create an empty JavaDoc jar. Required for Maven Central deployments.
@@ -148,28 +169,50 @@ fun configurePublishingFor(project: Project) {
             this.archiveClassifier = "javadoc"
         }
 
+    /*
+     * Create a publication. Note that the name of the publication must be unique across all
+     * modules, because the broken Gradle signing plugin will create a signing task for each
+     * one that, in the case of a name conflict, will silently overwrite the previous signing
+     * task.
+     */
+
     project.publishing {
         publications {
-            create<MavenPublication>("MavenPublication") {
+            create<MavenPublication>("_${project.name}_MavenPublication") {
                 groupId = property(project, "GROUP")
                 artifactId = property(project, "POM_ARTIFACT_ID")
                 version = versionName
 
+                /*
+                 * https://central.sonatype.org/publish/requirements/#sufficient-metadata
+                 */
+
                 pom {
                     name.set(property(project, "POM_NAME"))
                     description.set(property(project, "POM_DESCRIPTION"))
                     url.set(property(project, "POM_URL"))
+
                     scm {
                         connection.set(property(project, "POM_SCM_CONNECTION"))
                         developerConnection.set(property(project, "POM_SCM_DEV_CONNECTION"))
                         url.set(property(project, "POM_SCM_URL"))
                     }
+
                     licenses {
                         license {
                             name.set(property(project, "POM_LICENCE_NAME"))
                             url.set(property(project, "POM_LICENCE_URL"))
                         }
                     }
+
+                    developers {
+                        developer {
+                            name.set("The Palace Project")
+                            email.set("info@thepalaceproject.org")
+                            organization.set("The Palace Project")
+                            organizationUrl.set("https://thepalaceproject.org/")
+                        }
+                    }
                 }
 
                 artifact(taskJavadocEmpty)
@@ -244,6 +287,17 @@ fun configurePublishingFor(project: Project) {
                 task.dependsOn.add(taskSourcesEmpty)
             }
     }
+
+    /*
+     * Configure signing.
+     */
+
+    if (enableSigning) {
+        signing {
+            useGpgCmd()
+            sign(project.publishing.publications)
+        }
+    }
 }
 
 /*
@@ -511,16 +565,12 @@ allprojects {
                 propertyInt(this, "org.thepalaceproject.build.androidSDKCompile")
 
             android.defaultConfig {
-                versionName =
-                    property(this@allprojects, "VERSION_NAME")
-                multiDexEnabled =
-                    true
+                multiDexEnabled = true
                 targetSdk =
                     propertyInt(this@allprojects, "org.thepalaceproject.build.androidSDKTarget")
                 minSdk =
                     propertyInt(this@allprojects, "org.thepalaceproject.build.androidSDKMinimum")
-                testInstrumentationRunner =
-                    "androidx.test.runner.AndroidJUnitRunner"
+                testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
             }
 
             /*
diff --git a/gradle.properties b/gradle.properties
index c7425d858..db8f21e07 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,7 +11,7 @@ POM_SCM_CONNECTION=scm:git:git://github.com/ThePalaceProject/android-core
 POM_SCM_DEV_CONNECTION=scm:git:ssh://git@github.com/ThePalaceProject/android-core
 POM_SCM_URL=http://github.com/ThePalaceProject/android-core
 POM_URL=http://github.com/ThePalaceProject/android-core
-VERSION_NAME=1.6.0-SNAPSHOT
+VERSION_NAME=1.7.0-SNAPSHOT
 VERSION_CODE_BASE=70000
 
 android.useAndroidX=true
diff --git a/org.thepalaceproject.android.platform b/org.thepalaceproject.android.platform
index 0ea1a8683..114105745 160000
--- a/org.thepalaceproject.android.platform
+++ b/org.thepalaceproject.android.platform
@@ -1 +1 @@
-Subproject commit 0ea1a8683a764926dd3e7d7081d8f36b59830d58
+Subproject commit 1141057459d944b4c2e3e3d8a4a9b5a1b629685b