zhjwpku commented on code in PR #16817: URL: https://github.com/apache/iceberg/pull/16817#discussion_r3409621015
########## site/docs/blog/posts/2026-06-14-iceberg-cpp-0.3.0-release.md: ########## @@ -0,0 +1,110 @@ +--- +date: 2026-06-14 +title: Apache Iceberg C++ 0.3.0 Release +slug: apache-iceberg-cpp-0.3.0-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 the 0.3.0 release of Apache [Iceberg C++](https://github.com/apache/iceberg-cpp). This release includes [over 140 pull requests](https://github.com/apache/iceberg-cpp/compare/v0.2.0...v0.3.0) from 23 contributors, including 11 first-time contributors. + +`iceberg-cpp` is a native C++ implementation of the Apache Iceberg table format, providing libraries for reading, writing, and managing Iceberg tables in C++ applications. + +<!-- more --> + +## Release Highlights + +### Scan Planning and Data Access +- [Incremental scan APIs](https://github.com/apache/iceberg-cpp/pull/559), [incremental append scans](https://github.com/apache/iceberg-cpp/pull/590), and [incremental changelog scans](https://github.com/apache/iceberg-cpp/pull/611) for planning table changes between snapshots +- Merge-on-read data access with a [MOR file scan task reader](https://github.com/apache/iceberg-cpp/pull/657), [delete filter support](https://github.com/apache/iceberg-cpp/pull/650), and a [DeleteLoader for position and equality delete files](https://github.com/apache/iceberg-cpp/pull/610) +- [Column selection in table scan planning](https://github.com/apache/iceberg-cpp/pull/550), [server-side REST scan planning](https://github.com/apache/iceberg-cpp/pull/614), and [ManifestGroup file filtering](https://github.com/apache/iceberg-cpp/pull/664) +- [Roaring-based position bitmaps](https://github.com/apache/iceberg-cpp/pull/595), a [position delete index](https://github.com/apache/iceberg-cpp/pull/605), and [range coalescing for position deletes](https://github.com/apache/iceberg-cpp/pull/645) + +### Table Operations and Maintenance +- [MergingSnapshotUpdate](https://github.com/apache/iceberg-cpp/pull/682) for rewrite-style operations +- [SnapshotManager](https://github.com/apache/iceberg-cpp/pull/542) support and [retried transaction commits](https://github.com/apache/iceberg-cpp/pull/626) +- Snapshot expiration cleanup strategies for [reachable file cleanup](https://github.com/apache/iceberg-cpp/pull/592) and [incremental file cleanup](https://github.com/apache/iceberg-cpp/pull/648) +- [Partition statistics updates](https://github.com/apache/iceberg-cpp/pull/538) and [schema update mapping](https://github.com/apache/iceberg-cpp/pull/561) + +### Catalogs and Integrations +- REST catalog improvements including [initial OAuth2 support](https://github.com/apache/iceberg-cpp/pull/577), [OAuth2 token auto-refresh](https://github.com/apache/iceberg-cpp/pull/646), [Basic authentication](https://github.com/apache/iceberg-cpp/pull/564), [snapshot loading mode](https://github.com/apache/iceberg-cpp/pull/543), [namespace separators](https://github.com/apache/iceberg-cpp/pull/617), and [scan planning endpoints](https://github.com/apache/iceberg-cpp/pull/614) +- [S3 FileIO integration](https://github.com/apache/iceberg-cpp/pull/548) built on Arrow filesystem support +- [Streaming FileIO APIs](https://github.com/apache/iceberg-cpp/pull/641) and [bulk delete support](https://github.com/apache/iceberg-cpp/pull/659) for more efficient object-store operations +- [SQL catalog support](https://github.com/apache/iceberg-cpp/pull/693) backed by SQLite, PostgreSQL, and MySQL stores +- [Hive metastore build skeleton](https://github.com/apache/iceberg-cpp/pull/689) and [Hive 3.1 metastore Thrift IDL vendoring](https://github.com/apache/iceberg-cpp/pull/694) + +### Metrics and Observability +- [Scan and commit metrics reporting](https://github.com/apache/iceberg-cpp/pull/589), including report JSON serialization and reporter loading +- [Avro writer metrics](https://github.com/apache/iceberg-cpp/pull/604) and [Parquet writer metrics](https://github.com/apache/iceberg-cpp/pull/651) + +### Metadata and File Format Support +- Puffin support with [basic data structures](https://github.com/apache/iceberg-cpp/pull/588), [format constants and JSON serialization](https://github.com/apache/iceberg-cpp/pull/603), and [file reader/writer support](https://github.com/apache/iceberg-cpp/pull/624) +- Iceberg v3 support for the [unknown type](https://github.com/apache/iceberg-cpp/pull/662) and [nanosecond timestamp primitive types](https://github.com/apache/iceberg-cpp/pull/653) +- Expression serialization with [operation JSON serialization](https://github.com/apache/iceberg-cpp/pull/532), [expression JSON serialization](https://github.com/apache/iceberg-cpp/pull/553), and [typed literal binding after serialization](https://github.com/apache/iceberg-cpp/pull/562) +- [Secure UUID generation](https://github.com/apache/iceberg-cpp/pull/602) and [table UUID assignment during metadata creation](https://github.com/apache/iceberg-cpp/pull/713) Review Comment: removed together with the below section. -- This is an automated message from the Apache Git Service. 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