hivemq/hivemq-community-edition 2021.1 on GitHub

The retain as published subscription option is now supported for shared subscriptions #245
Added option to override the default destination of automatically-generated heap dumps to facilitate troubleshooting in containerized environments #225 #227

Improved performance and memory usage #233 #234 #237 #243 , especially:
- Streamlined handling for multiple connected clients to limit memory consumption and increase performance #234 #237
- Optimized message throughput for subscribers with high publication rates #243
Enhanced in-memory persistence performance #233 #235 #244 , including:
- Reduced GC pressure for better in-memory persistence performance #235
- Fewer context switches for better in-memory persistence performance #244
Improved handling of shared subscriptions that have large numbers of inflight messages #223
Improved scaling of clients with the same shared subscription #240
Improved payload persistence #226