Added

• Add shovel and federation management commands to lavinmqctl #1277

Changed

• BoolChannel: Don't spawn fiber #1603
• Reduce etcd lease keepalive renewal interval to 1/3rd of TTL #1573

Fixed

• delay exchange message ordering #1600
• Removing too many bindings in Consistent hash exchange on unbind #1594
• Federation refactor/improvements #1492
• Bugfix and refactor dead lettering #1552
• BCC remove on delivery #1557
• Topic exchange # wildcard now matches zero segments #1608

This release introduces the ability to restart closed queues, enhanced TLS capabilities including SNI and mTLS support, improved stream performance, improved clustering and federation management, and various performance optimizations.

Added

• Restart closed queues via API/UI/lavinmqctl #1345
• TLS keylog file (SSLKEYLOGFILE) support #1531
• TLS SNI and mTLS support #1516
• Shell command hooks for cluster leader transitions #1491
• Shovel and federation management commands to lavinmqctl #1277
• Cache checksums on followers for faster failover #1554

Changed

• Convert queued message graph to stacked line graph #1565
• Federation improvements #1492
• Stream: Store offset only for first message per segment #1479
• Use parallel execution context for clustering followers #1544
• BCC remove on delivery #1557
• Reduce etcd lease keepalive renewal interval to 1/3rd of TTL #1573

Fixed

• Dead lettering refactord to have proper routing and death cycle detection. #1552
• Prefetch button icons in CSS #1556

Fixed

• lavinmqperf - correctly summarize throughput numbers #1536

This release introduces Geographic Information System (GIS) filtering for streams, enhanced performance testing capabilities, as well as many other improvements and bugfixes.

Release Highlights

GIS Filtering for Stream Queues

Stream queues now support Geographic Information System (GIS) filtering, allowing you to filter messages based on geographic coordinates. This lets you efficiently query and consume messages from specific geographic regions without processing the entire stream. #1397

Latency Measurement in lavinmqperf

The lavinmqperf benchmarking tool now includes latency measurement support via the --measure-latency flag for AMQP throughput tests. This lets you measure end-to-end message latency during performance testing, providing deeper insights into your system's behavior under load. Combined with the new queue pattern support, you can now run more sophisticated benchmark scenarios across multiple queues. #1474 & #1471

Important Bugfixes

• Fixed critical segfault race condition when closing auto-delete queues #1529
• Fixed "lease not found" etcd error that could cause infinite retries in clustered environments #1519
• Fixed security issue: enforced authorization for metrics endpoint on management port #1521
• Fixed issue where permissions weren't cleared for connected users when revoked or deleted #1526
• Fixed UI issue where overridden effective arguments were not marked as active #1489
• Fixed handling of file not found exceptions when deleting orphan ack files 370bac2d

Changes Worth Mentioning

Memory Pressure Monitoring

LavinMQ now supports SystemD memory pressure monitoring (PSI - Pressure Stall Information). This integration allows better coordination with the operating system during memory pressure situations, potentially helping to avoid out-of-memory conditions in containerized and systemd-managed environments. #1484

UI Improvements

Queue and exchange features now display as complete words—Durable, Auto delete, etc.—rather than single-letter abbreviations for better accessibility and understanding #1470, #1454, #1463

Delayed message queue Naming

Delayed message queues now follow the format amq.delayed-<exchange name>, making it simpler to identify which delayed queues correspond to specific exchanges (applies to newly created queues only). #1461

Visual Enhancement

An ASCII art logo now displays during LavinMQ startup, making the service more identifiable in log files. #1482

Better Default Configuration

LavinMQ now automatically enables amqps/mqtts/https ports by default when TLS certificate and key are provided, simplifying secure deployments. #1487

For the full list of changes, see the changelog.

Fixed

• Handle "lease not found" etcd error without infinite retry #1519

Changed

• Better default config - Enable amqps/mqtts/https by default if tls_cert/key is supplied #1487

Fixed

• Fix OpenAPI schema for bcrypt hashing_algorithm name #1498
• Overridden effective arguments not marked as active in UI #1489
• Don't raise when truncating deleted MFile #1500
• Abort on IO::Error in delivery_loop #f87491ec29bc0cf31b9fe5db4d3f2d3d8cce85c6

Removed

• Don't save backups when failing over to new leader #1508

Fixed

• Don't raise when truncating deleted MFile #1500
• Abort on IO::Error in delivery_loop #f87491ec29bc0cf31b9fe5db4d3f2d3d8cce85c6

LavinMQ 2.6.0-rc.1 Release Notes

This release candidate introduces Geographic Information System filtering for streams, enhanced performance testing capabilities, and improved system monitoring.

Release Highlights

GIS Filtering for Stream Queues

Stream queues now support Geographic Information System (GIS) filtering, allowing you to filter messages based on geographic coordinates. This lets you efficiently query and consume messages from specific geographic regions without processing the entire stream. #1397

Latency Measurement in lavinmqperf

The lavinmqperf benchmarking tool now includes latency measurement support via the --measure-latency flag for AMQP throughput tests. This lets you measure end-to-end message latency during performance testing, providing deeper insights into your system's behavior under load. Combined with the new queue pattern support, you can now run more sophisticated benchmark scenarios across multiple queues. #1474, #1471

Changes Worth Mentioning

Memory Pressure Monitoring

LavinMQ now supports SystemD memory pressure monitoring (PSI - Pressure Stall Information). This integration allows better coordination with the operating system during memory pressure situations, potentially helping to avoid out-of-memory conditions in containerized and systemd-managed environments. #1484

Clearer UI Feature Display

Queue and exchange features are now spelled out in full (Durable, Auto delete, etc.) instead of using single-letter abbreviations. This makes the web interface more accessible and easier to understand at a glance. #1470

Delayed Message Queue Naming

Queues created for delayed messages now use a clearer naming format: amq.delayed-<exchange name>. This makes it easier to identify which delayed message queues correspond to which exchanges. This change only affects newly created queues. #1461

ASCII Art Logo

LavinMQ now displays an ASCII art logo on boot, making it easier to spot LavinMQ startup in your logs. #1482

For the full list of changes, see the changelog.