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spetz pushed a commit to branch main
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The following commit(s) were added to refs/heads/main by this push:
new 5705fa5b Add release 0.8.0 post
5705fa5b is described below
commit 5705fa5b3d925090f23b3c15959b39944bec0ca9
Author: spetz <[email protected]>
AuthorDate: Wed Apr 22 12:17:36 2026 +0200
Add release 0.8.0 post
---
content/blog/release-0.8.0.mdx | 243 ++++++++++++++++++++++++++++++++++++++
src/app/(site)/downloads/page.tsx | 22 +++-
2 files changed, 259 insertions(+), 6 deletions(-)
diff --git a/content/blog/release-0.8.0.mdx b/content/blog/release-0.8.0.mdx
new file mode 100644
index 00000000..6fdb9426
--- /dev/null
+++ b/content/blog/release-0.8.0.mdx
@@ -0,0 +1,243 @@
+---
+title: Apache Iggy 0.8.0 Release
+author: piotr
+tags: ["release", "0.8.0", "announcement"]
+date: 2026-04-22
+---
+## Release 0.8.0
+
+Less than two months after
[0.7.0](https://iggy.apache.org/blogs/2026/02/24/release-0.7.0/), we're excited
to release **[Apache Iggy
0.8.0](https://github.com/apache/iggy/releases/tag/server-0.8.0)** - a release
focused on deep internal restructuring and hardening the path to clustering.
+
+While 0.7.0 laid the foundations for **Viewstamped Replication (VSR)**
consensus, 0.8.0 is about **unifying the architecture**: a complete **wire
protocol rewrite** that eliminates three redundant serialization paths, a new
**shard crate** with proper request routing, a **persistent WAL journal** for
metadata durability, a **WAL-backed ClientTable** with view-change safety, new
**memory primitives** for zero-copy message handling, initial **A2A
(Agent-to-Agent) protocol** support for age [...]
+
+---
+
+## Iggy Server
+
+### Wire Protocol Rewrite
+
+The largest refactoring effort in this release is the **complete unification
of the wire protocol**. The binary protocol layer previously had three
redundant serialization paths: `ServerCommand` enum with a hand-rolled
`binary_mapper`, the `BytesSerializable` trait for domain type serialization,
and `WireEncode`/`WireDecode` for wire protocol types - all doing the same job
with different APIs.
+
+This release collapses them into one:
+
+- **[Wire protocol codec and
types](https://github.com/apache/iggy/pull/2946)** - new
`WireEncode`/`WireDecode` types in the `binary_protocol` crate
+- **[Wire types for all commands](https://github.com/apache/iggy/pull/2962)**
- wire types and zero-copy message primitives for every command
+- **[Sans-IO frame codec](https://github.com/apache/iggy/pull/2967)** - frame
codec and command dispatch table, decoupled from I/O for better testability
+- **[ServerCommand/BytesSerializable
removal](https://github.com/apache/iggy/pull/3041)** - the `ServerCommand`
enum, `binary_mapper`, 45+ command structs, and `BytesSerializable` trait are
all deleted; wire types flow directly from transport through shard dispatch to
handlers
+- **[Partitions rework](https://github.com/apache/iggy/pull/3020)** -
partitions refactored around `Message<H, B>` with explicit ownership model,
removing the old prefix/tail copy-on-write design and its aliasing problems
+
+### Clustering & VSR Consensus
+
+Building on 0.7.0's VSR foundations, this release introduces the structural
primitives needed to wire consensus into the server:
+
+- **[Shard crate & IggyShard](https://github.com/apache/iggy/pull/2811)** -
new dedicated `shard` crate with a generic `IggyShard` that dispatches incoming
network messages to the correct consensus plane via `PlaneIdentity`
+- **[Shard router](https://github.com/apache/iggy/pull/2853)** - routes
requests within shards to the appropriate handlers
+- **[Plane trait](https://github.com/apache/iggy/pull/2780)** - a unified
abstraction for dispatching requests to different subsystems based on plane
demux logic
+- **[MuxPlane handles](https://github.com/apache/iggy/pull/2855)** - metadata
and partition handles for MuxPlane, wiring subsystems into the consensus layer
+- **[Namespaced pipelines](https://github.com/apache/iggy/pull/2765)** -
independent commit progress across namespaces with per-namespace VecDeques
under one global operation sequence and hash chain
+- **[Loopback queue](https://github.com/apache/iggy/pull/2825)** - loopback
queue for primary self-addressed messages in consensus
+- **[STM response threading](https://github.com/apache/iggy/pull/2856)** -
state machine responses now propagated back through consensus Reply body, so
clients receive assigned IDs without a second query
+- **[VSR types consolidation](https://github.com/apache/iggy/pull/3014)** -
consolidated VSR types into `binary_protocol`
+- **[server-ng binary](https://github.com/apache/iggy/pull/3053)** - new
`iggy-server-ng` binary crate for the next-generation server with clustering
support
+- **[ClientTable with WAL-backed commit
path](https://github.com/apache/iggy/pull/3023)** - client request tracking
with at-most-once semantics, durably persisted through the WAL and safe across
view changes
+
+The **simulator** also advanced significantly with a
**[PacketSimulator](https://github.com/apache/iggy/pull/2769)** for
deterministic testing, **[poll_messages
support](https://github.com/apache/iggy/pull/2960)**, **[Network wired into the
tick loop](https://github.com/apache/iggy/pull/3049)** with per-replica
outboxes and replica crash simulation, and the **[view change protocol wired
end-to-end](https://github.com/apache/iggy/pull/3092)** so leader failover can
now be exercised determ [...]
+
+### Persistent WAL Journal
+
+**[Persistent WAL journal with recovery and
compaction](https://github.com/apache/iggy/pull/2916)** - metadata changes are
now durably persisted to a write-ahead log with recovery and compaction
support, a critical building block for cluster state durability. The
**[partition journal](https://github.com/apache/iggy/pull/2909)** was also
refactored to use the `Storage` trait as backing storage rather than inline
data.
+
+### Memory & Buffer Primitives
+
+New memory management primitives for high-throughput message handling:
+
+- **[Aligned buffer memory pool](https://github.com/apache/iggy/pull/2921)** -
pre-allocated aligned buffers for efficient I/O operations
+- **[TwoHalves buffer](https://github.com/apache/iggy/pull/2944)** - a split
buffer using `Vec<u8>` instead of `Bytes`, with mutable and immutable halves
that share the same allocation initially and diverge on first clone - the
mutable part is copied while the immutable part uses thread-safe reference
counting for cheap sharing
+
+### Agentic Workloads
+
+- **[A2A (Agent-to-Agent) protocol
support](https://github.com/apache/iggy/pull/2656)** - initial server-side
support for the A2A protocol, backed by **JWKS** so agents from different
tenants can authenticate with their own public keys, with key rotation handled
without server restarts. This lands the first piece of the agentic story
outlined in 0.7.0's roadmap.
+
+### Security Improvements
+
+- **[User header encryption](https://github.com/apache/iggy/pull/3040)** -
both server-side and client-side encryption now encrypt user-defined headers
alongside the message payload; previously headers were left in plaintext on
disk (**BREAKING**)
+- **[Random JWT secrets](https://github.com/apache/iggy/pull/2974)** - empty
JWT secret defaults now trigger secure random generation at startup, preventing
all instances from sharing the same signing key
+- **[SecretString credentials](https://github.com/apache/iggy/pull/2931)** -
credentials wrapped in `SecretString` to prevent accidental leaks in logs and
debug output
+- **[Consensus header validation](https://github.com/apache/iggy/pull/2887)**
- fixed undefined behavior where untrusted bytes from the network were
reinterpreted as Rust enum discriminants without validation
+- **[Plaintext secrets regression
test](https://github.com/apache/iggy/pull/2945)** - ensures secrets are never
persisted as plaintext
+- **[Dependabot security fixes](https://github.com/apache/iggy/pull/3087)** -
swept up outstanding Dependabot-flagged vulnerabilities across the workspace
+
+### Notable Bug Fixes
+
+- **[Consumer offset skip](https://github.com/apache/iggy/pull/2958)** -
prevented consumer offset from being skipped during concurrent produce and
consume operations
+- **[Consumer offsets beyond max partition
range](https://github.com/apache/iggy/pull/2794)** - prevented storing consumer
offsets beyond the valid partition range
+- **[Correct offset after segment
deletion](https://github.com/apache/iggy/pull/2798)** - `current_offset` now
reports the correct value after segment deletion
+- **[Stats semver wire alignment](https://github.com/apache/iggy/pull/3036)**
- fixed wire format alignment for stats using a zero sentinel
+- **[io_uring EINVAL diagnostics](https://github.com/apache/iggy/pull/3021)**
- added diagnostics for shard executor io_uring failures
+- **[Windows build fix](https://github.com/apache/iggy/pull/2971)** - fixed
broken Windows build for SDK and CLI
+- **[Hostnames in server address
config](https://github.com/apache/iggy/pull/2923)** - SDKs accept hostnames
(not just IPs) in server addresses across all transports
+- **[Non-tty password read](https://github.com/apache/iggy/pull/3084)** - CLI
no longer breaks when stdin is not a tty (piped input, scripted usage)
+- **[CLI context home directory](https://github.com/apache/iggy/pull/3069)** -
ensures the home directory exists before writing context files
+- **[Iceberg sink credential provider
chain](https://github.com/apache/iggy/pull/3045)** - the Iceberg connector now
honors the default AWS credential provider chain
+
+### Other Improvements
+
+- **[Threads count and disk space in sysinfo
stats](https://github.com/apache/iggy/pull/2917)** - extended system stats
reporting
+- **[Delete segments via HTTP](https://github.com/apache/iggy/pull/2804)** -
added the delete segments command to the HTTP transport
+- **[ServerConfig extraction](https://github.com/apache/iggy/pull/2796)** -
moved `ServerConfig` types from the server into a dedicated `configs` crate
+- **[IggyMessagesBatch::last_offset
O(1)](https://github.com/apache/iggy/pull/2840)** - performance improvement for
batch offset lookups
+
+### Breaking Changes
+
+- **[User header encryption](https://github.com/apache/iggy/pull/3040)** -
encryption now covers user headers in addition to payload (all SDKs updated)
+- **[Wire protocol unification](https://github.com/apache/iggy/pull/3041)** -
`BytesSerializable` trait and 45+ command structs removed; wire types are the
single serialization path
+- **[Stats semver wire alignment](https://github.com/apache/iggy/pull/3036)**
- wire format change for stats using a zero sentinel for forward compatibility
+
+Docker images are available on **[Docker
Hub](https://hub.docker.com/u/apache?page=1&search=iggy)**.
+
+---
+
+## SDKs
+
+### Rust
+
+- **Rust client bumped to [0.10.0](https://github.com/apache/iggy/pull/3126)**
+- **[Sans-IO frame codec and command dispatch
table](https://github.com/apache/iggy/pull/2967)** - decoupled from I/O for
better testability and portability
+- **[Wire types for all commands with zero-copy message
primitives](https://github.com/apache/iggy/pull/2962)** - foundation for the
unified wire protocol
+- **[Auto-reconnect on transport
errors](https://github.com/apache/iggy/pull/2880)** - automatic reconnection
after server restart
+- **[Hostname support for QUIC and
WebSocket](https://github.com/apache/iggy/pull/2768)** - clients now accept
hostnames, not just IP addresses
+- **[iobuf inlined into
`iggy_binary_protocol`](https://github.com/apache/iggy/pull/3110)** - one less
crate boundary for the hot path
+- **[TCP/TLS producer and consumer
examples](https://github.com/apache/iggy/pull/2820)**
+
+### C++
+
+The C++ SDK is being actively revived with foundational work:
+
+- **[Low-level bindings with e2e CI
config](https://github.com/apache/iggy/pull/2852)** - initial low-level
bindings, tests, and end-to-end CI pipeline
+- **[Consumer group functions](https://github.com/apache/iggy/pull/2988)** -
consumer group support in the C++ client
+- **[Bazel building and testing
infrastructure](https://github.com/apache/iggy/pull/2785)** - proper build
system for the C++ SDK
+
+### Java
+
+- **[Async connection pooling](https://github.com/apache/iggy/pull/2606)** -
`FixedChannelPool`-based async connection pooling for improved throughput
+- **[Async API parity with blocking
client](https://github.com/apache/iggy/pull/2718)** - full async API matching
all blocking client methods
+- **[Connection timeout support](https://github.com/apache/iggy/pull/3026)**
+- **[Generation-based auth for pooled
channels](https://github.com/apache/iggy/pull/2910)** - correct
re-authentication when pooled connections are recycled
+- **[Unified blocking TCP client](https://github.com/apache/iggy/pull/2947)**
- blocking client reimplemented as a thin wrapper over the async client
+- **[TCP/TLS integration tests and
examples](https://github.com/apache/iggy/pull/2823)**
+
+### C\#
+
+- **[Async method naming
convention](https://github.com/apache/iggy/pull/2994)** - all async methods
renamed with `Async` suffix following .NET conventions
+- **[SDK version in login requests](https://github.com/apache/iggy/pull/2937)**
+- **[TCP/TLS producer and consumer
examples](https://github.com/apache/iggy/pull/2821)**
+- **[Integration tests rewrite](https://github.com/apache/iggy/pull/2710)** -
removed `DependsOn` for independent, parallelizable tests
+- Fixed **[.NET node redirection in TCP
client](https://github.com/apache/iggy/pull/2843)**
+
+### Go
+
+- **[TCP/TLS connection](https://github.com/apache/iggy/pull/2834)** - full
TCP/TLS transport implementation
+- **[Binary reader/writer](https://github.com/apache/iggy/pull/2986)** -
native binary protocol encoding and decoding
+- **[Command interface](https://github.com/apache/iggy/pull/2737)** - improved
request handling abstraction
+- **[SDK version in login requests](https://github.com/apache/iggy/pull/3025)**
+- **[Infinite reconnection](https://github.com/apache/iggy/pull/2884)** -
upgraded to go-retry v5 with infinite reconnection support
+- **[TLS integration tests and
examples](https://github.com/apache/iggy/pull/2898)**
+- Fixed **[permissions
serialization](https://github.com/apache/iggy/pull/3015)** and **[TCP client
connect](https://github.com/apache/iggy/pull/2860)**
+- Fixed **[CreateUser / UpdatePermissions buffer
size](https://github.com/apache/iggy/pull/3097)** and **[stats field
deserialization aligned with Rust
SDK](https://github.com/apache/iggy/pull/3032)**
+
+### Python
+
+- **[TLS and auth args in getting-started
examples](https://github.com/apache/iggy/pull/2754)**
+- **[Migrated from pip to uv](https://github.com/apache/iggy/pull/2767)** for
faster dependency management
+
+### Node.js (TypeScript)
+
+- **[TCP/TLS integration tests and
examples](https://github.com/apache/iggy/pull/2822)**
+- Fixed **[hostname verification](https://github.com/apache/iggy/pull/2913)**
- uses localhost instead of disabling verification
+
+### CLI
+
+- **[Context create/delete
commands](https://github.com/apache/iggy/pull/2998)** - completes the
login/logout workflow with persistent context management
+- **[Cluster metadata command](https://github.com/apache/iggy/pull/2839)** -
inspect cluster metadata from the CLI
+
+---
+
+## Connectors
+
+New connectors and runtime improvements:
+
+- **[InfluxDB Sink and Source](https://github.com/apache/iggy/pull/2933)** -
new connector for InfluxDB integration
+- **[MongoDB sink connector](https://github.com/apache/iggy/pull/2815)** - new
connector for MongoDB
+- **[Generic HTTP sink connector](https://github.com/apache/iggy/pull/2925)**
- configurable HTTP sink for forwarding messages to any HTTP endpoint
+- **[Hot reload](https://github.com/apache/iggy/pull/2781)** - restart a
connector with new configuration without restarting the entire runtime
+
+Learn more in the [documentation](/docs/connectors/introduction).
+
+---
+
+## Benchmark Dashboard
+
+- **[Embeddable chart endpoints with PNG
rendering](https://github.com/apache/iggy/pull/2833)** - share benchmark charts
via image URLs
+- **[Latency distribution chart](https://github.com/apache/iggy/pull/2832)** -
log-normal fit visualization for latency analysis
+- **[LTTB downsampling](https://github.com/apache/iggy/pull/2831)** -
efficient time series chart rendering for large datasets
+- **[Auth support](https://github.com/apache/iggy/pull/2778)** -
`--username`/`--password` flags for authenticated benchmarks
+- **[Iggy brand colors](https://github.com/apache/iggy/pull/2738)** - dark
mode updated to match Iggy branding
+- **[Prettier benchmark table
output](https://github.com/apache/iggy/pull/3090)** - cleaner CLI reporting of
benchmark runs
+
+---
+
+## Web UI
+
+- Fixed **[login form Enter key](https://github.com/apache/iggy/pull/2970)** -
Enter now submits the form instead of toggling password visibility
+- Improved **[message_expiry
handling](https://github.com/apache/iggy/pull/2888)**
+- **[UI /healthz endpoint](https://github.com/apache/iggy/pull/2983)** -
health check for the embedded Web UI
+- Frontend dependencies updated
+- Web UI bumped to **[0.3.0](https://github.com/apache/iggy/pull/3121)**
+
+---
+
+## Helm Charts
+
+- **[Helm chart validation](https://github.com/apache/iggy/pull/3019)** added
to CI
+- Fixed **[install guidance and deployment
defaults](https://github.com/apache/iggy/pull/2976)**
+- **[helm-docs, yamllint, and
helmfmt](https://github.com/apache/iggy/pull/3070)** wired into chart quality
checks
+
+---
+
+## CI/CD & Infrastructure
+
+- **Parallel Rust CI** - tests **[partitioned across 2 parallel CI
machines](https://github.com/apache/iggy/pull/3003)** for faster feedback
+- **[DAG-scoped test selection](https://github.com/apache/iggy/pull/3095)** -
Rust CI now computes the dependency DAG and runs only the tests reachable from
the changed crates, with follow-ups to **[include binary packages for
`CARGO_BIN_EXE`](https://github.com/apache/iggy/pull/3113)** and **[fix
connector plugin / multi-crate PRs](https://github.com/apache/iggy/pull/3120)**
+- **Codecov everywhere** - coverage uploads added for
**[Python](https://github.com/apache/iggy/pull/2790)**,
**[Go](https://github.com/apache/iggy/pull/2793)**,
**[Node.js](https://github.com/apache/iggy/pull/2792)**, and
**[C#](https://github.com/apache/iggy/pull/2782)** SDKs alongside existing Rust
and Java coverage
+- **[Post-merge CI split](https://github.com/apache/iggy/pull/3006)** -
monolithic post-merge job broken into focused components with hardened Codecov
uploads
+- **Publish pipeline hardening** - **[crate publish chain
reworked](https://github.com/apache/iggy/pull/3111)**, **[release tags gated on
proven registry availability](https://github.com/apache/iggy/pull/3124)**, and
**[further publish-pipeline
hardening](https://github.com/apache/iggy/pull/3125)** so tag pushes only
happen once the corresponding artifacts are actually live
+- **[HTTP healthcheck container
readiness](https://github.com/apache/iggy/pull/3093)** - integration tests wait
for real HTTP health endpoints instead of log-scraping, applied to
**[Elasticsearch](https://github.com/apache/iggy/pull/3079)** and
**[Iceberg](https://github.com/apache/iggy/pull/3077)** containers
+- **[Binary artifact detection](https://github.com/apache/iggy/pull/2875)** -
pre-commit and CI checks to prevent accidental binary commits
+- **[Typos checks](https://github.com/apache/iggy/pull/2803)** - automated
typo detection across the repository
+- **[Version bump tooling](https://github.com/apache/iggy/pull/2990)** -
automated version bump with consistency checks across all crates
+- **[Unified example runner](https://github.com/apache/iggy/pull/2920)** -
single entrypoint for running all SDK examples with TLS support
+- **[BDD coverage](https://github.com/apache/iggy/pull/2950)** - `--coverage`
flag for BDD tests across all SDKs
+- **[Docker actions pinned to SHA](https://github.com/apache/iggy/pull/2999)**
per ASF GitHub Actions allowlist
+- **[Third-party attribution for the bundled Gradle
Wrapper](https://github.com/apache/iggy/pull/3109)**
+- **[WASM build fix for
`comfy-table`](https://github.com/apache/iggy/pull/3107)**
+- **Rust bumped to [1.94](https://github.com/apache/iggy/pull/2900)**
+
+---
+
+## What's Next
+
+Our primary focus remains **completing the clustering implementation with VSR
consensus**. The `iggy-server-ng` binary introduced in 0.8.0 will become the
cluster-ready server, integrating the shard crate, plane abstractions,
persistent WAL journal, and namespaced pipeline work into a fully functional
replicated cluster.
+
+Other upcoming efforts:
+- Server core optimizations: kTLS, DirectIO, and continued NUMA tuning
+- SDK evolution with **sans-IO** architecture - the frame codec and wire types
shipped in 0.8.0 are the foundation for transport-agnostic, fully testable
client implementations
+- C++ SDK completing its low-level bindings and reaching feature parity
+- More connector integrations and runtime hardening
+- Web UI enhancements - building on the embedded dashboard
+- **Agentic AI** - building on the initial **A2A protocol** support in 0.8.0
+
+---
+
+Thanks to our amazing community and contributors for making Apache Iggy better
with every release.
+
+**Join us on [Discord](https://discord.gg/apache-iggy) and help shape the
future of the project!**
diff --git a/src/app/(site)/downloads/page.tsx
b/src/app/(site)/downloads/page.tsx
index df91cce8..ec289b24 100644
--- a/src/app/(site)/downloads/page.tsx
+++ b/src/app/(site)/downloads/page.tsx
@@ -27,8 +27,18 @@ export const metadata: Metadata = {
const releases = [
{
- version: "0.7.0-incubating",
+ version: "0.8.0-incubating",
latest: true,
+ date: "2026-04-22",
+ archive:
+
"https://downloads.apache.org/incubator/iggy/0.8.0/iggy-0.8.0-incubating-src.tar.gz";,
+ asc:
"https://downloads.apache.org/incubator/iggy/0.8.0/iggy-0.8.0-incubating-src.tar.gz.asc";,
+ sha:
"https://downloads.apache.org/incubator/iggy/0.8.0/iggy-0.8.0-incubating-src.tar.gz.sha512";,
+ changelog: "/blogs/2026/04/22/release-0.8.0",
+ },
+ {
+ version: "0.7.0-incubating",
+ latest: false,
date: "2026-02-24",
archive:
"https://downloads.apache.org/incubator/iggy/0.7.0/iggy-0.7.0-incubating-src.tar.gz";,
@@ -209,22 +219,22 @@ export default function DownloadsPage() {
<pre className="overflow-x-auto rounded-xl border border-fd-border
bg-fd-card p-5 text-sm leading-relaxed text-fd-foreground/85">
<code>{`# Download artifact, matching .asc file and KEYS
curl -O https://downloads.apache.org/incubator/iggy/KEYS
-curl -O
https://downloads.apache.org/incubator/iggy/0.7.0/iggy-0.7.0-incubating-src.tar.gz
-curl -O
https://downloads.apache.org/incubator/iggy/0.7.0/iggy-0.7.0-incubating-src.tar.gz.asc
+curl -O
https://downloads.apache.org/incubator/iggy/0.8.0/iggy-0.8.0-incubating-src.tar.gz
+curl -O
https://downloads.apache.org/incubator/iggy/0.8.0/iggy-0.8.0-incubating-src.tar.gz.asc
# Import Iggy release keys
gpg --import KEYS
# Verify signature
-gpg --verify iggy-0.7.0-incubating-src.tar.gz.asc
iggy-0.7.0-incubating-src.tar.gz`}</code>
+gpg --verify iggy-0.8.0-incubating-src.tar.gz.asc
iggy-0.8.0-incubating-src.tar.gz`}</code>
</pre>
<h2 className="mb-4 mt-14 text-2xl font-bold text-fd-foreground">
Verify the checksum
</h2>
<pre className="overflow-x-auto rounded-xl border border-fd-border
bg-fd-card p-5 text-sm leading-relaxed text-fd-foreground/85">
- <code>{`curl -O
https://downloads.apache.org/incubator/iggy/0.7.0/iggy-0.7.0-incubating-src.tar.gz.sha512
-shasum -a 512 -c iggy-0.7.0-incubating-src.tar.gz.sha512`}</code>
+ <code>{`curl -O
https://downloads.apache.org/incubator/iggy/0.8.0/iggy-0.8.0-incubating-src.tar.gz.sha512
+shasum -a 512 -c iggy-0.8.0-incubating-src.tar.gz.sha512`}</code>
</pre>
<h2 className="mb-4 mt-14 text-2xl font-bold text-fd-foreground">
