diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5c05a009..75c844b2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -70,16 +70,22 @@ jobs:
       id-token: write  # IMPORTANT: mandatory for trusted publishing
 
     steps:
+      - name: Download all the dists
+        uses: actions/download-artifact@v4
+        with:
+          name: python-package-distributions
+          path: dist/
+
       - name: Extract tag
         id: tag
         run: |
           TAG=${GITHUB_REF#refs/tags/v}
           echo "tag=$TAG" >> $GITHUB_OUTPUT
 
-      - name: Read VERSION_NAME from pyproject.toml
+      - name: Read VERSION_NAME from dist/
         id: version
         run: |
-          VERSION_NAME=$(grep '^version' pyproject.toml | cut -d'=' -f2 | tr -d '[:space:]')
+          VERSION_NAME=$(basename dist/ably-*.tar.gz | sed -E 's/^ably-([^-]+)\.tar\.gz$/\1/')
           echo "version=$VERSION_NAME" >> $GITHUB_OUTPUT
 
       - name: Compare version with tag
@@ -91,11 +97,7 @@ jobs:
         env:
           VERSION: ${{ steps.version.outputs.version }}
           TAG: ${{ steps.tag.outputs.tag }}
-      - name: Download all the dists
-        uses: actions/download-artifact@v4
-        with:
-          name: python-package-distributions
-          path: dist/
+
       - name: Publish distribution 📦 to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
 
@@ -107,7 +109,7 @@ jobs:
 
     environment:
       name: testpypi
-      url: https://test.pypi.org/p/ably-dev
+      url: https://test.pypi.org/p/ably
 
     permissions:
       id-token: write  # IMPORTANT: mandatory for trusted publishing
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 42fd1d85..e7b0c237 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Change Log
 
+## [v2.1.0](https://github.com/ably/ably-python/tree/v2.1.0)
+
+[Full Changelog](https://github.com/ably/ably-python/compare/v2.0.13...v2.1.0)
+
+## What's Changed
+
+* Added support for VCDiff delta-compressed messages. If VCDiff compression is enabled in the client options, and 
+deltas are provided by the Ably service, the SDK reconstructs full message payloads from the base content 
+and the received delta, reducing bandwidth usage without requiring changes to your application code.
+[\#620](https://github.com/ably/ably-python/pull/620)
+
 ## [v2.0.13](https://github.com/ably/ably-python/tree/v2.0.13)
 
 [Full Changelog](https://github.com/ably/ably-python/compare/v2.0.12...v2.0.13)
diff --git a/ably/__init__.py b/ably/__init__.py
index ab1027fb..7d56c471 100644
--- a/ably/__init__.py
+++ b/ably/__init__.py
@@ -16,4 +16,4 @@
 logger.addHandler(logging.NullHandler())
 
 api_version = '3'
-lib_version = '2.0.13'
+lib_version = '2.1.0'
diff --git a/poetry.lock b/poetry.lock
index b1f4eecc..37b03199 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -884,13 +884,13 @@ files = [
 
 [[package]]
 name = "vcdiff-decoder"
-version = "0.1.0a1"
+version = "0.1.0"
 description = "Python implementation of VCDIFF (RFC 3284) delta compression format"
 optional = false
 python-versions = "<4.0,>=3.7"
 files = [
-    {file = "vcdiff_decoder-0.1.0a1-py3-none-any.whl", hash = "sha256:5d33ac9d2e7dfc141bcbf75b59a31f3b9e9cce59e92169995831f128be63d87d"},
-    {file = "vcdiff_decoder-0.1.0a1.tar.gz", hash = "sha256:734a181bae80ad9b44570e0905106dffc847e2351f8c8ffe7cc58c5c79c7890b"},
+    {file = "vcdiff_decoder-0.1.0-py3-none-any.whl", hash = "sha256:42f4e3d77b3bd4be881853858ee471a11d6a474fda375482d589b8576b91318f"},
+    {file = "vcdiff_decoder-0.1.0.tar.gz", hash = "sha256:905d9c39fd451331301652c16b19505c16d323446fa4dffa745b2855aff5fe69"},
 ]
 
 [[package]]
@@ -1168,4 +1168,4 @@ vcdiff = ["vcdiff-decoder"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.7"
-content-hash = "37f7bab9bd673078d3d7362dff9b9fcd5a515867725b68138a4dff5ee1f45204"
+content-hash = "ce837d7ac901ef173e8cc1077da2342e6335769cb5a65c84015564efe9c9b6bf"
diff --git a/pyproject.toml b/pyproject.toml
index cb9ab6a6..88c76d05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "ably"
-version = "2.0.13"
+version = "2.1.0"
 description = "Python REST and Realtime client library SDK for Ably realtime messaging service"
 license = "Apache-2.0"
 authors = ["Ably <support@ably.com>"]
@@ -56,7 +56,7 @@ pyee = [
 # Optional dependencies
 pycrypto = { version = "^2.6.1", optional = true }
 pycryptodome = { version = "*", optional = true }
-vcdiff-decoder = { version = "^0.1.0a1", optional = true }
+vcdiff-decoder = { version = "^0.1.0", optional = true }
 
 [tool.poetry.extras]
 oldcrypto = ["pycrypto"]