v0.16.6

This release brings support for Starknet 0.14.4.

Streaming is back as the default way to download a Juno snapshot.

Finally, this update does a migration on start-up. Migration time is estimated at 50 minutes for full nodes and a few seconds for pruned nodes.

Added

• RPC requests for pre-confirmed blocks can now access recently declared classes still not included in the blockchain. #3821
• Juno is now aware about how much memory it has available for bounding max concurrent compilation jobs. Set via --node-memory-reserve. #3764
  • Max concurrent compilation defaults can be overridden with --max-concurrent-compilations.
• --disable-sync flag to disable L2 synchronization (incompatible with pruning). #3912

Changed

• Use new Go 1.27 compiler.
• Increased --db-max-handles default values to half of the fd limit given to the process (previously fixed at 1024). This increases Juno database access speed. #3919
• --rpc-request-timeout now applies to both http and websocket endpoints (before, it was only http). #3870
• Reduced Garbage Collector pressure by using more stack memory and less heap. #3843 #3858 #3906 #3938 #3908 #3955
• Custom JSON encoding/decoding for felts. #3831 #3881
• Reduced cost and improved speed of Gzip compression. #3956 #3957
• Optimized database access to load only the important bits (literally!). #3810 #3809 #3818 #3833 #3834 #3835 #3857 #3876 #3880 #3886 #3885 #3890 #3888 #3895 #3889 #3916 #3918 #3904 #3909 #3917 #3961 #3952 #3792 #3796 #3850 #3951 #3953

Fixed

• Juno now answers correctly CONTRACT_NOT_FOUND when querying for system contracts, matching the spec. #3788
• Sync status is now reported correctly when Juno is ran with --prune-node. #3864
• Bound Gzip decoding to avoid a decompression bomb. #3976

New Contributors

• @NazariiDenha made their first contribution in #3915
• @danielntmd made their first contribution in #3912

Full Changelog: v0.16.5...v0.16.6-rc.4