diff --git a/Cargo.lock b/Cargo.lock
index 1752363a..02489710 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2122,7 +2122,7 @@ dependencies = [
 
 [[package]]
 name = "qcs"
-version = "0.21.10-rc.0"
+version = "0.21.10-rc.1"
 dependencies = [
  "assert2",
  "async-trait",
@@ -2258,7 +2258,7 @@ dependencies = [
 
 [[package]]
 name = "qcs-sdk-python"
-version = "0.17.10-rc.0"
+version = "0.17.10-rc.1"
 dependencies = [
  "async-trait",
  "numpy",
diff --git a/crates/lib/CHANGELOG.md b/crates/lib/CHANGELOG.md
index 69f25e9c..1d7ef579 100644
--- a/crates/lib/CHANGELOG.md
+++ b/crates/lib/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 0.21.10-rc.1
+
+### Features
+
+- increase gRPC max message size from 4MB to 50MB (#468)
+
+### Fixes
+
+- add explicit dependency on rigetti-pyo3's "time" feature (#476)
+
 ## 0.21.10-rc.0
 
 ### Features
diff --git a/crates/lib/Cargo.toml b/crates/lib/Cargo.toml
index 4b133244..46df3838 100644
--- a/crates/lib/Cargo.toml
+++ b/crates/lib/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "qcs"
 description = "High level interface for running Quil on a QPU"
-version = "0.21.10-rc.0"
+version = "0.21.10-rc.1"
 edition = "2018"
 license = "Apache-2.0"
 repository = "https://github.com/rigetti/qcs-sdk-rust"
diff --git a/crates/python/CHANGELOG.md b/crates/python/CHANGELOG.md
index 4be9919a..e95c030d 100644
--- a/crates/python/CHANGELOG.md
+++ b/crates/python/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 0.17.10-rc.1
+
+### Features
+
+- increase gRPC max message size from 4MB to 50MB (#468)
+
+### Fixes
+
+- add explicit dependency on rigetti-pyo3's "time" feature (#476)
+
 ## 0.17.10-rc.0
 
 ### Features
diff --git a/crates/python/Cargo.toml b/crates/python/Cargo.toml
index 5fbf80ef..1c256a2a 100644
--- a/crates/python/Cargo.toml
+++ b/crates/python/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "qcs-sdk-python"
 description = "Python bindings to qcs-sdk-rust"
-version = "0.17.10-rc.0"
+version = "0.17.10-rc.1"
 edition = "2021"
 license = "Apache-2.0"
 repository = "https://github.com/rigetti/qcs-sdk-rust"
diff --git a/crates/python/pyproject.toml b/crates/python/pyproject.toml
index a19298c4..6b5e6c82 100644
--- a/crates/python/pyproject.toml
+++ b/crates/python/pyproject.toml
@@ -1,7 +1,7 @@
 # This is the metadata Maturin uploads to PyPI on publish
 [project]
 name = "qcs-sdk-python"
-version = "0.17.10-rc.0"
+version = "0.17.10-rc.1"
 description = "Python interface for the QCS Rust SDK"
 readme = "README.md"
 license = { text = "Apache-2.0" }
@@ -26,7 +26,7 @@ dependencies = ["quil==0.10.0"]
 # We can remove this table once this issue is resolved: https://github.com/python-poetry/poetry/issues/3332
 [tool.poetry]
 name = "qcs-sdk-python"
-version = "0.17.10-rc.0"
+version = "0.17.10-rc.1"
 description = "Python interface for the QCS Rust SDK"
 readme = "README.md"
 authors = [