diff --git a/eng/spotbugs-aggregate-report/pom.xml b/eng/spotbugs-aggregate-report/pom.xml
index 7a2b72b62ce21..f7f2e5413dda6 100644
--- a/eng/spotbugs-aggregate-report/pom.xml
+++ b/eng/spotbugs-aggregate-report/pom.xml
@@ -112,7 +112,7 @@
         <dependency>
           <groupId>com.microsoft.azure</groupId>
           <artifactId>azure-batch</artifactId>
-          <version>8.1.0</version> <!-- {x-version-update;com.microsoft.azure:azure-batch;current} -->
+          <version>9.0.0</version> <!-- {x-version-update;com.microsoft.azure:azure-batch;current} -->
         </dependency>
         <dependency>
           <groupId>com.microsoft.azure</groupId>
diff --git a/eng/versioning/version_data.txt b/eng/versioning/version_data.txt
index e7b147f2e7bc2..92f2183892489 100644
--- a/eng/versioning/version_data.txt
+++ b/eng/versioning/version_data.txt
@@ -3,7 +3,7 @@
 # Note: com.azure:azure-sdk-parent is in version_client.txt
 
 com.azure:azure-data-sdk-parent;1.3.0;1.3.0
-com.microsoft.azure:azure-batch;8.1.0-beta.1;8.1.0
+com.microsoft.azure:azure-batch;8.1.0-beta.1;9.0.0
 com.microsoft.azure:azure-applicationinsights-query;1.0.0-beta-2;1.0.0-beta-2
 com.microsoft.azure.cognitiveservices:azure-cognitiveservices-spellcheck;1.1.0-beta.1;1.1.0-beta.1
 com.microsoft.azure.cognitiveservices:azure-cognitiveservices-textanalytics;1.1.0-beta.1;1.1.0-beta.1
diff --git a/sdk/batch/microsoft-azure-batch/CHANGELOG.md b/sdk/batch/microsoft-azure-batch/CHANGELOG.md
index ce4fde5fd9ba4..e9cfac3145db7 100644
--- a/sdk/batch/microsoft-azure-batch/CHANGELOG.md
+++ b/sdk/batch/microsoft-azure-batch/CHANGELOG.md
@@ -1,14 +1,21 @@
 # Release History
 
-## 8.1.0 (2021-01-05)
-
-- Exposes a BatchClient factory method
+## 9.0.0 (2021-01-08)
 
 ### Features
 
 - Adds support for task slots
   - `JobOperations.getTaskSlotCounts()` returns task slot counts
-  - `JobOperations.getTaskResult()` returns a `TaskCountsResult` object containing both task and slot counts
+  - `JobOperations.getTaskCountsResult()` returns a `TaskCountsResult` object containing both task and slot counts
+- Adds property `requiredSlots` to `CloudTask`, allowing the user to specify how many slots on a node they should take up
+- Exposes a `BatchClient` factory method
+
+### Breaking Changes
+
+- Property `maxTasksPerNode` is replaced with `taskSlotsPerNode`, which allows nodes to consume a dynamic amount of slots for more fine-grained control over resource consumption
+  - `CloudPool.maxTasksPerNode` &rarr; `CloudPool.taskSlotsPerNode`
+  - `PoolAddParameter.maxTasksPerNode` &rarr; `PoolAddParameter.taskSlotsPerNode`
+  - `PoolSpecification.maxTasksPerNode` &rarr; `PoolSpecification.taskSlotsPerNode`
 
 ## 8.0.0 (2020-04-27)
 ### Features
diff --git a/sdk/batch/microsoft-azure-batch/pom.xml b/sdk/batch/microsoft-azure-batch/pom.xml
index b3e0c7bc220b4..5d3c6140bb552 100644
--- a/sdk/batch/microsoft-azure-batch/pom.xml
+++ b/sdk/batch/microsoft-azure-batch/pom.xml
@@ -16,7 +16,7 @@
   <groupId>com.microsoft.azure</groupId>
   <artifactId>azure-batch</artifactId>
   <packaging>jar</packaging>
-  <version>8.1.0</version> <!-- {x-version-update;com.microsoft.azure:azure-batch;current} -->
+  <version>9.0.0</version> <!-- {x-version-update;com.microsoft.azure:azure-batch;current} -->
 
   <name>Microsoft Azure Batch SDK Root</name>
   <description>This package contains the root module of Microsoft Azure Batch SDK.</description>