diff --git a/Cargo.lock b/Cargo.lock
index 2b2460ba3..aa1857ffd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1714,7 +1714,7 @@ dependencies = [
 
 [[package]]
 name = "icechunk"
-version = "0.3.3"
+version = "0.3.4"
 dependencies = [
  "anyhow",
  "assert_fs",
@@ -1776,7 +1776,7 @@ dependencies = [
 
 [[package]]
 name = "icechunk-python"
-version = "1.0.3"
+version = "1.1.0"
 dependencies = [
  "async-stream",
  "async-trait",
diff --git a/Changelog.python.md b/Changelog.python.md
index fa65b23c5..ba1707f56 100644
--- a/Changelog.python.md
+++ b/Changelog.python.md
@@ -1,5 +1,55 @@
 # Changelog
 
+## Python Icechunk Library 1.1.0
+
+### Features
+
+- Icechunk has an [asynchronous API](https://icechunk.io/en/latest/async/) now.
+  - Icechunk internals continue to be fully asynchronous. Most "normal" use cases
+    don't need the async API, the synchronous API will deliver the same performance.
+  - The async API is useful to get optimal concurrency in operations involving
+    multiple repos or multiple sessions. An example would be users who run Icechunk
+    in the context of a service accessing multiple repositories.
+  - Not every method in Icechunk has an async version, only those that can benefit because they do I/O.
+  - The new methods have the same name as they synchronous ones with an `_async` suffix.
+    They can be invoked on the same instances as usual.
+  - Some Examples:
+    - `Repository.create_async()`
+    - `Repository.open_async()`
+    - `Repository.garbage_collect_async()`
+    - `Repository.total_chunks_storage_async()`
+    - `Repository.lookup_tag_async()`
+    - `Repository.readonly_session_async()`
+    - `Repository.writable_session_async()`
+    - `Session.commit_async()`
+    - `Session.rebase_async()`
+    - There are many more, check the [API reference](https://icechunk.io/en/latest/reference/)
+- Icechunk default log level is `warn` now, instead of `error`.
+- Emit a log warning and recommendation when manifests are too large for the configured cache
+  size, which makes Icechunk less performant.
+- Add property accessors to `ManifestFileInfo`
+
+### Performance
+
+- We increased the size of the default asset caches
+  - Snapshots nodes: 10k -> 30k
+  - Chunk references: 5M  -> 15M
+
+### Fixes
+
+- Validate urls on `set_virtual_ref`
+
+### API Breaking Changes
+
+There are two minor API breaking changes that will affect only virtual dataset users:
+
+- To improve security, the `url_prefix` of virtual chunk containers must be declared with a final `/`
+  character now. This protects, for example, users from authorizing access to
+  `foo` prefix and inadvertently authorize access to `foo-production`.
+- `set_virtual_ref` and `set_virtual_refs` now default to `validate_container = True`. This improves
+  usability for repository writers, with an early error when they forget to create their virtual
+  chunk containers.
+
 ## Python Icechunk Library 1.0.3
 
 ### Fixes
diff --git a/icechunk-python/Cargo.toml b/icechunk-python/Cargo.toml
index 97bb295e9..e81953752 100644
--- a/icechunk-python/Cargo.toml
+++ b/icechunk-python/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "icechunk-python"
-version = "1.0.3"
+version = "1.1.0"
 description = "Transactional storage engine for Zarr designed for use on cloud object storage"
 readme = "../README.md"
 repository = "https://github.com/earth-mover/icechunk"
@@ -21,7 +21,7 @@ crate-type = ["cdylib"]
 bytes = "1.10.1"
 chrono = { version = "0.4.41" }
 futures = "0.3.31"
-icechunk = { path = "../icechunk", version = "0.3.3", features = ["logs"] }
+icechunk = { path = "../icechunk", version = "0.3.4", features = ["logs"] }
 itertools = "0.14.0"
 pyo3 = { version = "0.24.2", features = [
   "chrono",
diff --git a/icechunk/Cargo.toml b/icechunk/Cargo.toml
index 8ca350f8a..7a6b17970 100644
--- a/icechunk/Cargo.toml
+++ b/icechunk/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "icechunk"
-version = "0.3.3"
+version = "0.3.4"
 description = "Transactional storage engine for Zarr designed for use on cloud object storage"
 readme = "../README.md"
 repository = "https://github.com/earth-mover/icechunk"