Logos Dev Update: June 2026
Your monthly update on the development of the Logos technology stack.
Logos
Logos provides monthly updates on the state of the technology stack and the development of its various modules.
These updates cover all elements of the unified stack, including Storage, Messaging, and Blockchain, as well as lower-level infrastructure such as the runtime and networking layer.
The aim is to give developers a clear snapshot of what has been built over the past month, the current state of key projects, and highlight new initiatives they can get involved in.
For developer-focused highlights on X, please follow Logos Tech. For broader updates on the Logos movement as a whole, stay tuned to the main Logos account.
Below is the Logos Developer Update for June 2026.
Testnet v0.2 is now live
The headline event of the month was the release of Logos Testnet v0.2 on 30 June. This is a major step forward for the unified stack: node operators can now run all core capabilities — blockchain, messaging, and storage — through a single interface, whether that's Basecamp or a headless CLI deployment.
The most significant architectural change is that the Logos Blockchain now runs as a Logos Core module, bringing it into the same modular system as the rest of the stack. With this in place, operators can also run the newly deployed Blend Network directly from their node, marking a key step towards Private Proof-of-Stake. On the Logos Execution Zone, bridging between the base layer and LEZ, multi-owner accounts, and private transfers are all now implemented, as has the infrastructure for decentralised sequencing. Basecamp itself now has a new App Manager and an app-store interface model that makes discovering and installing modules considerably cleaner.
Much of the month's engineering was spent hardening the release. Successive release candidates were cut through to 0.1.3-rc.10, the first rounds of security-audit fixes were merged, and a ZK proving memory leak that had been crashing the devnet was tracked down and fixed. A full account of what shipped is available in the launch announcement and the release notes.
If you are running a node from v0.1, your old setup will not carry over and a clean install is required. The Node Operator Guide is the place to start.
Logos technology stack updates
Logos Core
June's defining piece of Core work was the completion of the Qt split. Qt remains available where it is useful at the UI layer, but modules no longer depend on it at the core. A parallel migration moved the SDK stack over to cdylib-based code generation.
Basecamp saw a series of user-facing improvements, gaining a new App Manager and app-store model that shipped with v0.2, along with hot-reload improvements and a cleaner QML sandbox. The Logos Core CLI now features a daemon/client split with remote communication over TCP and a Python wrapper available, and developers have type-safe access to module APIs and generated boilerplate.
A new framework was also rolled out across modules that allows documentation examples to be executed and verified as tests.
Storage
Storage saw two major highlights in June. First, the NAT traversal package was completed, resulting in the first successful file transfers between nodes behind NATs using TCP hole punching. Combined with Identify and AutoNAT for external-address discovery, this should make node setup substantially simpler, and the work will benefit the whole stack.
The Storage module was also deployed to Logos Core as part of v0.2, complete with OpenMetrics support and anonymity-preserving DHT queries over the mixnet.
Messaging
Messaging was rebuilt and unified in the runup to v0.2. The Delivery libraries were consolidated into a single library exposing a tiered API, which includes the new Reliable Channel API — now in developer preview and wired into SDS with a persistence layer. Decentralised group chats are now enabled through de-MLS integration, and one-to-one chats were rebuilt on the same implementation to provide multi-device support, with identity and conversation state now persisting across sessions.
On the transport side, QUIC support landed in Logos Delivery and was validated end-to-end through the Delivery Simulator, and nim-libp2p was upgraded to v2.0.0 across the stack.
The Status integration continued to progress, with preparatory work on the Go bindings and a series of status-go migrations ahead of the eventual transport cutover.
Blockchain
Beyond the v0.2 launch work, contributors worked on several other changes this past month. Sessions were fully removed from the node, a substantial simplification of the Blend design, and a fresh devnet was deployed on the back of it.
Smart block building was merged, allowing the block builder to sequence multiple dependent transactions into a single block. The EmPoWering incentivisation proposal, which sets out a fixed-per-epoch, note-based reward approach, was approved and merged after review.
The Logos Execution Zone continued to mature, with a full LEZ performance benchmarking effort producing a summary of minimum and recommended hardware requirements, Kyber-768 post-quantum encryption merged for private account key agreement, and public account keys brought under post-quantum protection with Keycard integration.
Nimbos, the Nim client that will give the network client diversity, reached a notable milestone with Cryptarchia initial block download merged and two-node IBD passing.
AnonComms
Chat-over-mix was validated on a five-node simulation, with mix-RLN proofs, cover traffic, and service discovery all flowing together, and by the end of the month a five-node mixnet fleet had been deployed and confirmed working across nodes.
Service discovery was merged into Logos Delivery and confirmed working end-to-end inside a Logos Core application, with an integration guide published for module developers.
Elsewhere, the payment streams work for service incentivisation reached a completed demo against both local and testnet sequencers, the Zerokit 3.0 rearchitecture continued at pace, and the Logos Oracle Network progressed from proof-of-concept implementations to an opened RFC.
Research and DST
Research output remained strong and post-quantum work was a recurring theme: the first post-quantum benchmarks were run on a Raspberry Pi 5, a listing of post-quantum ZK proof-system candidates was started, and a post-quantum migration strategy document was opened.
The team also published a consolidated literature review of anonymous communication systems and privacy properties for private proof-of-stake networks and completed a cross-zone failure analysis documenting seven concrete failure modes across the sequencer's operating modes.
Documentation
Documentation focused on supporting the testnet v0.2 release, with the Node Operator Guide and builder documentation updated, the Logos Execution Zone specifications completed and readied for review, and a set of LEZ user journeys finished covering shared private accounts, public-to-private transfers, cross-program calls, and timelocks.
The documentation for the Logos stack is maintained and accessible to all developers at docs.logos.co, and the Node Operator Guide is now the best starting point for running a node on the Logos Testnet v0.2.
Download Logos Basecamp to get started with the Logos stack and explore the user-facing UI and module management system.
Logos Broadcast Network and Circles
Throughout June, Logos contributors continued to host online and IRL Circles around the world, creating digital and physical space to solve real-world problems with privacy-preserving technology.
Logos contributors were also present at Berlin Blockchain Week during the month, hosting an informal session in the park and facilitating a BYOC building LAN as part of Dappcon.
The Logos Broadcast Network continued to deliver regular programming, from Dev Club sessions and weekly technical updates to regular office hours every Friday at 14:00 UTC. Join these office hours to learn more about building on the Logos stack or to get help for specific issues and problems.
Full schedules and participation details are available at press.logos.co/calendar and logos.co/circles. For a full list of upcoming Logos events, check out the event page on Luma.
To get the latest developer updates from the Logos stack, follow Logos Tech on X. Stay tuned to the main Logos account for news on the wider global movement.
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