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new 4a70ddeaf5 Site: Add blog post for iceberg-rust 0.10.0 (#17032)
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commit 4a70ddeaf55cfebab01deaf63f15419675258d5f
Author: Daniel Carl Jones <[email protected]>
AuthorDate: Wed Jul 29 16:44:39 2026 +0200
Site: Add blog post for iceberg-rust 0.10.0 (#17032)
Co-authored-by: Shawn Chang <[email protected]>
---------
Co-authored-by: Kevin Liu <[email protected]>
Co-authored-by: Shawn Chang <[email protected]>
---
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+---
+date: 2026-07-21
+title: Apache Iceberg Rust 0.10.0 Release
+slug: apache-iceberg-rust-0.10.0-release
+authors:
+ - iceberg-pmc
+categories:
+ - release
+---
+
+<!--
+ - Licensed to the Apache Software Foundation (ASF) under one or more
+ - contributor license agreements. See the NOTICE file distributed with
+ - this work for additional information regarding copyright ownership.
+ - The ASF licenses this file to You under the Apache License, Version 2.0
+ - (the "License"); you may not use this file except in compliance with
+ - the License. You may obtain a copy of the License at
+ -
+ - http://www.apache.org/licenses/LICENSE-2.0
+ -
+ - Unless required by applicable law or agreed to in writing, software
+ - distributed under the License is distributed on an "AS IS" BASIS,
+ - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ - See the License for the specific language governing permissions and
+ - limitations under the License.
+ -->
+
+The Apache Iceberg community is pleased to announce version 0.10.0 of
[iceberg-rust](https://github.com/apache/iceberg-rust).
+
+This release covers development work from early March through early July 2026
and is the result of merging **254 PRs** from **40 contributors**. See the
[changelog] for the complete list of changes.
+
+[changelog]: https://github.com/apache/iceberg-rust/releases/tag/v0.10.0
+
+`iceberg-rust` is a native Rust implementation of the Apache Iceberg
specification, providing high-performance libraries for reading, writing, and
managing Iceberg tables in Rust applications and through Python bindings
(`pyiceberg-core`).
+
+<!-- more -->
+
+## Release Highlights
+
+There have been plenty of contributions across the `iceberg-rust` library;
here's a highlight of a few.
+
+### Schema Evolution
+
+This release adds the [`update_schema`
action](https://github.com/apache/iceberg-rust/pull/2120), enabling column
addition and removal.
+
+### Snapshot Expiration
+
+A new `ExpireSnapshotsAction`
([#2591](https://github.com/apache/iceberg-rust/pull/2591),
[#2664](https://github.com/apache/iceberg-rust/pull/2664),
[#2667](https://github.com/apache/iceberg-rust/pull/2667)) provides a
high-level API for expiring old snapshots, respecting `history.expire.*` table
properties and cleaning up associated statistics file metadata.
+
+### Configurable Tokio runtime
+
+A [custom tokio `Runtime`](https://github.com/apache/iceberg-rust/pull/2308)
can now be provided when initializing catalogs.
+This allows for injecting a customized Tokio runtime into the session.
+For example, it is now possible to configure the thread stack size or maximum
number of threads programatically.
+
+### Writer Improvements
+
+- **Content-defined chunking**
([#2375](https://github.com/apache/iceberg-rust/pull/2375),
[#2561](https://github.com/apache/iceberg-rust/pull/2561)): content-defined
chunking table properties are now respected for optimizing Parquet file
boundaries
+- **[Purge table support](https://github.com/apache/iceberg-rust/pull/2232)**:
Catalogs now offer a `purge_table` method, deleting both metadata and data files
+
+### Enhanced DataFusion Integration
+
+- **[EXPLAIN shows pushed-down
limits](https://github.com/apache/iceberg-rust/pull/2360)**: `IcebergTableScan`
now displays limit pushdown in EXPLAIN output for query debugging
+- **[IsNaN predicate
pushdown](https://github.com/apache/iceberg-rust/pull/2592)**: NaN-preserving
numeric expressions are now pushed into scans
+
+### Reader and Scan Improvements
+
+- **[Scan I/O metrics](https://github.com/apache/iceberg-rust/pull/2349)**:
`ArrowReader` now exposes bytes read during scans
+- **[FixedBinary(N)
support](https://github.com/apache/iceberg-rust/pull/2348)**: Added support for
fixed-length binary types
+- **[Snappy codec for
Avro](https://github.com/apache/iceberg-rust/pull/2573)**: Avro files
compressed with Snappy can now be read
+
+### Table Encryption (Foundational)
+
+Significant groundwork has been laid toward Iceberg's table encryption
specification. Writes to encrypted tables are [explicitly
blocked](https://github.com/apache/iceberg-rust/pull/2626) until the full write
path is complete. End-to-end read and write support for encrypted tables is
expected in a future release. See the [table encryption
RFC](https://github.com/apache/iceberg-rust/pull/2183) for the full design.
+
+### Storage Improvements
+
+#### New Storage Backend - HuggingFace Hub
+
+The [HuggingFace Hub storage
backend](https://github.com/apache/iceberg-rust/pull/2375) was introduced,
enabling direct access to Iceberg tables hosted on HuggingFace datasets.
+
+#### Other improvements
+
+- **[`delete_stream` on Storage
trait](https://github.com/apache/iceberg-rust/pull/2216)**: Batch delete
operations for efficient cleanup
+- **[OpenDAL resolving
storage](https://github.com/apache/iceberg-rust/pull/2231)**: Automatically
resolves the appropriate storage backend based on file path scheme
+- **[Timeout layer for
OpenDAL](https://github.com/apache/iceberg-rust/pull/2455)**: Added
`TimeoutLayer` inside `RetryLayer` to prevent indefinite hangs
+- **[S3 virtual-host-style
addressing](https://github.com/apache/iceberg-rust/pull/2330)**: Default to
virtual-host-style S3 addressing for broader compatibility
+
+## Bug Fixes
+
+Notable correctness fixes or other validation improvements in this release:
+
+- **[INT96 timestamp
values](https://github.com/apache/iceberg-rust/pull/2301)**: Fixed incorrect
Parquet INT96 timestamp interpretation
+- **[Nested type column
indices](https://github.com/apache/iceberg-rust/pull/2307)**: Fixed
`build_fallback_field_id_map` producing incorrect indices for schemas with
nested types
+- **[Delete-only manifests in
FastAppend](https://github.com/apache/iceberg-rust/pull/2545)**: Preserved
delete-only manifests that were incorrectly dropped
+- **[DeleteFileIndex lost
wakeup](https://github.com/apache/iceberg-rust/pull/2696)**: Fixed a hang
caused by a lost-wakeup race in `get_deletes_for_data_file`
+- **[Row group byte range
filtering](https://github.com/apache/iceberg-rust/pull/2615)**: Fixed row
duplication for sub-row-group file splits
+- **[Cross-engine decimal
compatibility](https://github.com/apache/iceberg-rust/pull/2538)**: Added space
in decimal type serialization for compatibility with other engines
+- **[NaN pushdown
correctness](https://github.com/apache/iceberg-rust/pull/2351)**: Fixed NaN
pushdown to correctly handle NaN values
+- **[Puffin magic number
validation](https://github.com/apache/iceberg-rust/pull/2416)**: Added missing
validation for magic number at the start of a Puffin file
+- **[Glue catalog
filtering](https://github.com/apache/iceberg-rust/pull/2570)**: Only list
Iceberg tables, not all Glue tables
+- **[Empty insert
handling](https://github.com/apache/iceberg-rust/pull/2712)**: INSERT
operations that produce no rows now correctly return a single row with count 0
+- **[Name-mapped field
IDs](https://github.com/apache/iceberg-rust/pull/2612)**: Projection and
predicate pushdown now correctly use name-mapped field IDs for Parquet files
without embedded field IDs
+- **[Snapshot summary total
fields](https://github.com/apache/iceberg-rust/pull/2589)**: Total values are
now omitted if the previous summary had unparsable or no previous total.
+- **[Negative positional delete
positions](https://github.com/apache/iceberg-rust/pull/2631)**: Negative
positions now error during evaluation instead of wrapping to large u64 offsets
+- **[Non-append insert
rejection](https://github.com/apache/iceberg-rust/pull/2714)**:
Overwrite/replace inserts in DataFusion are now rejected instead of silently
succeeding with append semantics
+- **[Snapshot summary
metrics](https://github.com/apache/iceberg-rust/pull/2726)**: User-supplied
properties can no longer override computed summary metrics
+
+## Breaking Changes
+
+Here's a few notable breaking changes.
+Given `iceberg-rust` has not yet reached version `1.x`, breaking changes are
adopted for a better API long-term.
+
+- **[Purge table](https://github.com/apache/iceberg-rust/pull/2232)**: Added
`purge_table` to the `Catalog` trait; some catalog implementations moved their
data-deletion logic from `drop_table` to `purge_table`
+- **[Compression codec
enum](https://github.com/apache/iceberg-rust/pull/2288)**: Codec enum variant
changes introducing Snappy, and including compression levels in Zstd and Gzip.
+- **[Custom Runtime in
Catalog](https://github.com/apache/iceberg-rust/pull/2308)**: Added
`with_runtime` to the `CatalogBuilder` trait
+-
**[DefaultLocationGenerator](https://github.com/apache/iceberg-rust/pull/2604)**:
`new()` now borrows `TableMetadata` instead of taking ownership
+- **[MSRV](https://github.com/apache/iceberg-rust/pull/2652)**: Bumped to Rust
1.94
+
+## Dependency Updates
+
+This release included a number of dependency updates, including upgrading to
Apache DataFusion 53 and Apache Arrow 58.
+For a full list of dependency versions, the best resources to review are the
Cargo manifests.
+
+## Infrastructure Improvements
+
+- **Public API stability**: [cargo-public-api
checks](https://github.com/apache/iceberg-rust/pull/2525) on every PR to catch
unintentional API breakage
+- **Trusted publishing**: [Migrated to trusted
publishing](https://github.com/apache/iceberg-rust/pull/2593) for crates.io
releases
+- **Standalone compilation**: [CI verifies each crate compiles
independently](https://github.com/apache/iceberg-rust/pull/2389)
+- **Security**: Pinned all third-party actions to Apache-approved SHAs; ASF
allowlist check on every PR
+- **Performance**: [Disabled debuginfo and incremental
compilation](https://github.com/apache/iceberg-rust/pull/2672) in CI; [Rust
caches saved only from main](https://github.com/apache/iceberg-rust/pull/2669)
+
+## What's Next
+
+Work is already underway on several features for upcoming releases:
+
+- **Table encryption**: With the foundational encryption stack landed, the
community is working toward end-to-end encrypted reads and writes
+- **Transaction layer improvement**: We are working on adding the snapshot
validation mechanism to detect write conflicts, laying the groundwork for
future support of RewriteDataFiles, RowDelta, and Overwrite commit operations.
+
+## Getting Involved
+
+The `iceberg-rust` project welcomes contributions. We use GitHub
[issues](https://github.com/apache/iceberg-rust/issues) for tracking work and
the [Apache Iceberg Community
Slack](https://iceberg.apache.org/community/#slack) for discussions.
+
+The easiest way to get started is to:
+
+1. Try `iceberg-rust` with your workloads and report any issues you encounter
+2. Review the [contributor
guide](https://github.com/apache/iceberg-rust/blob/main/CONTRIBUTING.md)
+3. Look for [good first
issues](https://github.com/apache/iceberg-rust/contribute)
+
+Code review is also a very welcome contribution - please provide feedback on
pull requests where you feel comfortable to do so!
+
+For more information, visit the [iceberg-rust
repository](https://github.com/apache/iceberg-rust).
