diff --git a/CHANGELOG.md b/CHANGELOG.md
index df002654aa7..316f1abde98 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# cuDF 21.08.00 (Date TBD)
+
+Please see https://github.com/rapidsai/cudf/releases/tag/v21.08.00a for the latest changes to this development branch.
+
 # cuDF 0.20.0 (Date TBD)
 
 Please see https://github.com/rapidsai/cudf/releases/tag/v0.20.0a for the latest changes to this development branch.
diff --git a/README.md b/README.md
index 733d1c7897b..ed4277e1fcb 100644
--- a/README.md
+++ b/README.md
@@ -65,15 +65,15 @@ Please see the [Demo Docker Repository](https://hub.docker.com/r/rapidsai/rapids
 
 cuDF can be installed with conda ([miniconda](https://conda.io/miniconda.html), or the full [Anaconda distribution](https://www.anaconda.com/download)) from the `rapidsai` channel:
 
-For `cudf version == 21.06` :
+For `cudf version == 21.081.06` :
 ```bash
 # for CUDA 10.1
 conda install -c rapidsai -c nvidia -c numba -c conda-forge \
-    cudf=21.06 python=3.7 cudatoolkit=10.1
+    cudf=21.081.06 python=3.7 cudatoolkit=10.1
 
 # or, for CUDA 10.2
 conda install -c rapidsai -c nvidia -c numba -c conda-forge \
-    cudf=21.06 python=3.7 cudatoolkit=10.2
+    cudf=21.081.06 python=3.7 cudatoolkit=10.2
 
 ```
 
diff --git a/conda/environments/cudf_dev_cuda11.0.yml b/conda/environments/cudf_dev_cuda11.0.yml
index 171a5ed8af5..388219d32ff 100644
--- a/conda/environments/cudf_dev_cuda11.0.yml
+++ b/conda/environments/cudf_dev_cuda11.0.yml
@@ -10,7 +10,7 @@ dependencies:
   - clang=8.0.1
   - clang-tools=8.0.1
   - cupy>7.1.0,<10.0.0a0
-  - rmm=21.06.*
+  - rmm=21.08.*
   - cmake>=3.18
   - cmake_setuptools>=0.1.3
   - python>=3.7,<3.9
diff --git a/conda/environments/cudf_dev_cuda11.2.yml b/conda/environments/cudf_dev_cuda11.2.yml
index 28373d203d1..91d20b0dfda 100644
--- a/conda/environments/cudf_dev_cuda11.2.yml
+++ b/conda/environments/cudf_dev_cuda11.2.yml
@@ -10,7 +10,7 @@ dependencies:
   - clang=8.0.1
   - clang-tools=8.0.1
   - cupy>7.1.0,<10.0.0a0
-  - rmm=21.06.*
+  - rmm=21.08.*
   - cmake>=3.18
   - cmake_setuptools>=0.1.3
   - python>=3.7,<3.9
diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index abad4d7bbca..2220a1b1a2c 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -28,7 +28,7 @@ elseif(CMAKE_CUDA_ARCHITECTURES STREQUAL "")
   set(CUDF_BUILD_FOR_DETECTED_ARCHS TRUE)
 endif()
 
-project(CUDF VERSION 21.06.00 LANGUAGES C CXX)
+project(CUDF VERSION 21.08.00 LANGUAGES C CXX)
 
 # Needed because GoogleBenchmark changes the state of FindThreads.cmake,
 # causing subsequent runs to have different values for the `Threads::Threads` target.
diff --git a/cpp/doxygen/Doxyfile b/cpp/doxygen/Doxyfile
index d359fe59c1a..2b6b16bd947 100644
--- a/cpp/doxygen/Doxyfile
+++ b/cpp/doxygen/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "libcudf"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 21.06.00
+PROJECT_NUMBER         = 21.08.00
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -2167,7 +2167,7 @@ SKIP_FUNCTION_MACROS   = YES
 # the path). If a tag file is not located in the directory in which doxygen is
 # run, you must also specify the path to the tagfile here.
 
-TAGFILES               = rmm.tag=https://docs.rapids.ai/api/librmm/21.06
+TAGFILES               = rmm.tag=https://docs.rapids.ai/api/librmm/21.08
 
 # When a file name is specified after GENERATE_TAGFILE, doxygen will create a
 # tag file that is based on the input files it reads. See section "Linking to
diff --git a/cpp/libcudf_kafka/CMakeLists.txt b/cpp/libcudf_kafka/CMakeLists.txt
index d6b69e0bf73..3f9343de1c6 100644
--- a/cpp/libcudf_kafka/CMakeLists.txt
+++ b/cpp/libcudf_kafka/CMakeLists.txt
@@ -15,7 +15,7 @@
 #=============================================================================
 cmake_minimum_required(VERSION 3.18 FATAL_ERROR)
 
-project(CUDA_KAFKA VERSION 21.06.00 LANGUAGES CXX)
+project(CUDA_KAFKA VERSION 21.08.00 LANGUAGES CXX)
 
 ###################################################################################################
 # - Build options
diff --git a/docs/cudf/source/conf.py b/docs/cudf/source/conf.py
index c9d4441efae..f14a31325d8 100644
--- a/docs/cudf/source/conf.py
+++ b/docs/cudf/source/conf.py
@@ -77,9 +77,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '21.06'
+version = '21.08'
 # The full version, including alpha/beta/rc tags.
-release = '21.06.00'
+release = '21.08.00'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/java/src/main/native/CMakeLists.txt b/java/src/main/native/CMakeLists.txt
index b8c9241d756..b458908f9c0 100755
--- a/java/src/main/native/CMakeLists.txt
+++ b/java/src/main/native/CMakeLists.txt
@@ -32,7 +32,7 @@ elseif(CMAKE_CUDA_ARCHITECTURES STREQUAL "")
   set(CUDF_JNI_BUILD_FOR_DETECTED_ARCHS TRUE)
 endif()
 
-project(CUDF_JNI VERSION 21.06.00 LANGUAGES C CXX)
+project(CUDF_JNI VERSION 21.08.00 LANGUAGES C CXX)
 
 ###################################################################################################
 # - build options ---------------------------------------------------------------------------------