diff --git a/.github/release-please/release-please-manifest.json b/.github/release-please/release-please-manifest.json
index e7562934..96dfab30 100644
--- a/.github/release-please/release-please-manifest.json
+++ b/.github/release-please/release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.19.0"
+  ".": "0.19.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dfaefc90..0a6b7eb5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.19.1](https://github.com/opentdf/java-sdk/compare/v0.19.0...v0.19.1) (2026-09-21)
+
+
+### Bug Fixes
+
+* **sdk:** DSPX-4589 default absent per-segment sizes to the manifest defaults ([#397](https://github.com/opentdf/java-sdk/issues/397)) ([6486b3f](https://github.com/opentdf/java-sdk/commit/6486b3f9056f2058fb0f994f874035d0a4bf8a57))
+
 ## [0.19.0](https://github.com/opentdf/java-sdk/compare/v0.18.0...v0.19.0) (2026-09-14)
 
 
diff --git a/cmdline/pom.xml b/cmdline/pom.xml
index 54bcc1d7..7301e11c 100644
--- a/cmdline/pom.xml
+++ b/cmdline/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.opentdf.platform</groupId>
         <artifactId>sdk-pom</artifactId>
-        <version>0.19.0</version>
+        <version>0.19.1</version>
     </parent>
     <artifactId>cmdline</artifactId>
     <properties>
diff --git a/cmdline/src/main/java/io/opentdf/platform/Command.java b/cmdline/src/main/java/io/opentdf/platform/Command.java
index 09ecd648..b073b955 100644
--- a/cmdline/src/main/java/io/opentdf/platform/Command.java
+++ b/cmdline/src/main/java/io/opentdf/platform/Command.java
@@ -54,7 +54,7 @@
  */
 class Versions {
     // Version of the SDK, managed by release-please.
-    public static final String SDK = "0.19.0"; // x-release-please-version
+    public static final String SDK = "0.19.1"; // x-release-please-version
 
     // This sdk aims to support this version of the TDF spec; currently 4.3.0.
     public static final String TDF_SPEC = "4.3.0";
diff --git a/examples/pom.xml b/examples/pom.xml
index 977926eb..61ca5bef 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <artifactId>sdk-pom</artifactId>
     <groupId>io.opentdf.platform</groupId>
-    <version>0.19.0</version>
+    <version>0.19.1</version>
   </parent>
 
   <groupId>io.opentdf.platform</groupId>
diff --git a/pom.xml b/pom.xml
index 03a5ccde..6a121d5d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>io.opentdf.platform</groupId>
     <artifactId>sdk-pom</artifactId>
-    <version>0.19.0</version>
+    <version>0.19.1</version>
     <name>io.opentdf.platform:sdk-pom</name>
     <description>OpenTDF Java SDK</description>
     <url>https://github.com/opentdf/java-sdk</url>
diff --git a/sdk-fips-bc/pom.xml b/sdk-fips-bc/pom.xml
index 5b5c7310..db247633 100644
--- a/sdk-fips-bc/pom.xml
+++ b/sdk-fips-bc/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.opentdf.platform</groupId>
         <artifactId>sdk-pom</artifactId>
-        <version>0.19.0</version>
+        <version>0.19.1</version>
     </parent>
     <artifactId>sdk-fips-bc</artifactId>
     <name>io.opentdf.platform:sdk-fips-bc</name>
diff --git a/sdk-pqc-bc/pom.xml b/sdk-pqc-bc/pom.xml
index 54c8bb2e..9c5513e9 100644
--- a/sdk-pqc-bc/pom.xml
+++ b/sdk-pqc-bc/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.opentdf.platform</groupId>
         <artifactId>sdk-pom</artifactId>
-        <version>0.19.0</version>
+        <version>0.19.1</version>
     </parent>
     <artifactId>sdk-pqc-bc</artifactId>
     <packaging>jar</packaging>
diff --git a/sdk/pom.xml b/sdk/pom.xml
index 0152c8d0..66f461c1 100644
--- a/sdk/pom.xml
+++ b/sdk/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <artifactId>sdk-pom</artifactId>
         <groupId>io.opentdf.platform</groupId>
-        <version>0.19.0</version>
+        <version>0.19.1</version>
     </parent>
     <packaging>jar</packaging>
     <properties>
diff --git a/sdk/src/main/java/io/opentdf/platform/sdk/Version.java b/sdk/src/main/java/io/opentdf/platform/sdk/Version.java
index 86080731..0afbf887 100644
--- a/sdk/src/main/java/io/opentdf/platform/sdk/Version.java
+++ b/sdk/src/main/java/io/opentdf/platform/sdk/Version.java
@@ -13,7 +13,7 @@
 class Version implements Comparable<Version> {
 
     // Version of the SDK, managed by release-please.
-    public static final String SDK = "0.19.0"; // x-release-please-version
+    public static final String SDK = "0.19.1"; // x-release-please-version
 
     private final int major;
     private final int minor;