Unreleased Changes

vX.X

Special thanks to external contributors on this release:

Friendly reminder, we have a bug bounty program.

CLI/RPC/Config
- [config] #5598 The test_fuzz and test_fuzz_config P2P settings have been removed. (@erikgrinaker)
- [config] #5728 fast_sync = "v1" is no longer supported (@melekes)
- [cli] #5772 gen_node_key prints JSON-encoded NodeKey rather than ID and does not save it to node_key.json (@melekes)
- [cli] #5777 use hypen-case instead of snake_case for all cli comamnds and config parameters
Apps
- [ABCI] #5447 Remove SetOption method from ABCI.Client interface
- [ABCI] #5447 Reset Oneof indexes for Request and Response.
P2P Protocol
Go API
- [abci/client, proxy] #5673 Async funcs return an error, Sync and Async funcs accept context.Context (@melekes)
- [p2p] Removed unused function MakePoWTarget. (@erikgrinaker)
- [libs/bits] #5720 Validate BitArray in FromProto, which now returns an error (@melekes)
[libs/os] Kill() and {Must,}{Read,Write}File() functions have been removed. (@alessio)
Blockchain Protocol

[crypto/ed25519] #5632 Adopt zip215 ed25519 verification. (@marbar3778)
[privval] #5603 Add --key to init, gen_validator, testnet & unsafe_reset_priv_validator for use in generating secp256k1 keys.
[abci/client] #5673 Async requests return an error if queue is full (@melekes)
[mempool] #5673 Cancel CheckTx requests if RPC client disconnects or times out (@melekes)
[abci] #5706 Added AbciVersion to RequestInfo allowing applications to check ABCI version when connecting to Tendermint. (@marbar3778)
[blockchain/v1] #5728 Remove in favor of v2 (@melekes)
[blockchain/v0] #5741 Relax termination conditions and increase sync timeout (@melekes)
[cli] #5772 gen_node_key output now contains node ID (id field) (@melekes)
[blockchain/v2] #5774 Send status request when new peer joins (@melekes)

[types] #5523 Change json naming of PartSetHeader within BlockID from parts to part_set_header (@marbar3778)
[privval] #5638 Increase read/write timeout to 5s and calculate ping interval based on it (@JoeKash)
[blockchain/v1] #5701 Handle peers without blocks (@melekes)
[crypto] #5707 Fix infinite recursion in string formatting of Secp256k1 keys (@erikgrinaker)
[blockchain/v1] #5711 Fix deadlock (@melekes)