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new d574cd54f add blog post for 0.5.0 release
d574cd54f is described below
commit d574cd54f2796d42be715e8535e3b2d595020881
Author: spetz <[email protected]>
AuthorDate: Sun Aug 10 21:10:41 2025 +0200
add blog post for 0.5.0 release
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+---
+title: Apache Iggy 0.5.0 Release
+slug: iggy-0.5.0-release
+authors:
+ - name: Piotr Gankiewicz
+ title: Apache Iggy founder
+ url: https://github.com/spetz
+ # image_url: https://github.com/spetz.png
+tags: []
+hide_table_of_contents: false
+date: 2025-08-10
+---
+## Release 0.5.0
+
+It’s been four months since our last [release
0.4.300](https://github.com/apache/iggy/releases/tag/server-0.4.300).
+Over 150 commits, a dozen new contributors, and countless hours later, we’re
proud to announce **[Apache Iggy
0.5.0](https://github.com/apache/iggy/releases/tag/server-0.5.0)**!
+
+This release brings major improvements across the board — core server
enhancements, updated SDKs, new tooling, data management interfaces, and more.
+
+<!--truncate-->
+
+## Iggy Server
+
+The most significant change on the server side is the introduction of
**[zero-copy (de)serialization](https://github.com/apache/iggy/pull/1679)**.
+This boosts performance (increased throughput and lower tail latency) while
reducing memory usage by avoiding unnecessary allocations and copies.
+
+You can read the full **[deep
dive](https://iggy.apache.org/blogs/2025/05/08/zero-copy-deserialization)**,
but in short — this is a **breaking change**. It required SDK refactoring, and
is supported only in the most recent client library releases.
+
+The new schema is already supported in the **[Iggy
CLI](https://github.com/apache/iggy/tree/master/core/cli)** and **[Iggy Web
UI](https://github.com/apache/iggy/tree/master/web)**. A simple update is all
you need.
+
+Docker images for the server and related components are available on **[Docker
Hub](https://hub.docker.com/u/apache?page=1&search=iggy)**.
+
+---
+
+## SDKs
+
+Alongside migrating repositories to the monorepo, we updated all SDKs to
support the zero-copy schema and fill in missing features.
+Our supported client libraries now include:
+
+- [Rust](https://crates.io/crates/iggy) (always up-to-date, core reference
implementation)
+- [C#](https://www.nuget.org/packages/Apache.Iggy/)
+- [Java](https://repository.apache.org/#nexus-search;quick~iggy)
+- [Python](https://pypi.org/project/apache-iggy/)
+- [Node.js (TypeScript)](https://www.npmjs.com/package/apache-iggy)
+- [Go](https://pkg.go.dev/github.com/apache/iggy/foreign/go)
+
+C++ and Elixir clients are in progress under the
[foreign](https://github.com/apache/iggy/tree/master/foreign) directory.
+
+**New in Rust SDK:**
+Support for a **[background
producer](https://github.com/apache/iggy/pull/1838)**, which buffers messages
in the background according to configured linger time and other settings.
Examples are available
[here](https://github.com/apache/iggy/tree/master/examples/rust).
+
+---
+
+## Benchmarks
+
+We’ve expanded our benchmarking toolkit:
+
+- **Iggy Bench CLI** (`iggy-bench`) — run local benchmarks with various
configurations and profiles.
+- JSON output and chart rendering for visual performance analysis.
+- Open benchmark results published at
[benchmarks.iggy.apache.org](https://benchmarks.iggy.apache.org), powered by
the open source [benchmarking
suite](https://github.com/apache/iggy/tree/master/core/bench).
+
+As always, you can install the regular CLI with: `cargo install iggy-cli`.
+
+---
+
+## Connectors
+
+We’ve built a new **connectors runtime** for easily creating Rust-based
plugins that integrate Iggy with external data sources—similar to Kafka Connect
or Redpanda Connect.
+
+You can:
+- Ingest data into Iggy from external systems (e.g., Postgres CDC).
+- Export data from Iggy to external destinations (e.g., indexing engines).
+- Apply optional transformations and schema mappings along the way.
+
+Learn more in this
[post](https://iggy.apache.org/blogs/2025/06/06/connectors-runtime) and in the
[documentation](/docs/connectors/introduction).
+
+---
+
+## MCP Server
+
+Apache Iggy now includes support for the **[Model Context
Protocol](https://modelcontextprotocol.io) (MCP)**—an open standard for
providing context to LLMs.
+
+You can start the MCP server with `cargo run --bin iggy-mcp` or use the
provided Docker image.
+
+Configuration, credentials, and permissions are detailed in the
[documentation](/docs/ai/mcp).
+
+---
+
+## Versioning
+
+Releases follow [semver](https://semver.org/) (e.g., `0.5.0`) or the `latest`
Docker tag (`apache/iggy:latest`).
+
+We also publish edge/dev/nightly builds (e.g., `0.5.0-edge.1` or
`apache/iggy:edge`), which contain the newest changes but are **not recommended
for production**.
+
+---
+
+## What’s Next
+
+Work is underway on a **complete rewrite of the server’s core architecture**
using the **io_uring runtime** with a **thread-per-core, shared-nothing
design**. This will further improve performance, reduce tail latencies, and
lower resource usage.
+
+Other upcoming efforts:
+- Expanding SDKs across more languages and catching up with the latest
features.
+- Synchronous SDK clients and [sans-io](https://www.firezone.dev/blog/sans-io)
design.
+- Benchmarking orchestrator
+- Enhancing the Connectors Runtime and Web UI.
+- Extending AI features around the MCP server.
+- Exploring **Agentic AI** use cases for streaming-based agent coordination.
+
+---
+
+Thanks to our amazing community and contributors for making Apache Iggy better
with every release.
+
+**Join us on [Discord](https://discord.gg/C5Sux5NcRa) and help shape the
future of the project!**
