v0.34.0-rc4

Special thanks to external contributors on this release:

Friendly reminder, we have a bug bounty program.

BREAKING CHANGES

CLI/RPC/Config
- [config] #5315 Rename prof_laddr to pprof_laddr and move it to rpc section (@melekes)
- [rpc] #5315 Remove /unsafe_start_cpu_profiler, /unsafe_stop_cpu_profiler and /unsafe_write_heap_profile. Please use pprof functionality instead (@melekes)
Apps
- [abci] #5324 abci evidence type is an enum with two types of possible evidence (@cmwaters)
P2P Protocol
Go API
- [evidence] #5317 Remove ConflictingHeaders evidence type & CompositeEvidence Interface. (@marbar3778)
- [evidence] #5318 Remove LunaticValidator evidence type. (@marbar3778)
- [evidence] #5319 Remove Amnesia & potentialAmnesia evidence types and removed POLC. (@marbar3778)
- [params] #5319 Remove ProofofTrialPeriod from evidence params (@marbar3778)
- [crypto/secp256k1] #5280 secp256k1 has been removed from the Tendermint repo. (@marbar3778)
Blockchain Protocol

[privval] #5239 Add chainID to requests from client. (@marbar3778)
[config] Add --consensus.double_sign_check_height flag and DoubleSignCheckHeight config variable. See ADR-51
[light] #5298 Morph validator set and signed header into light block (@cmwaters)

[blockchain] #5278 Verify only +2/3 of the signatures in a block when fast syncing. (@marbar3778)
[rpc] #5293 /dial_peers has added private and unconditional as parameters. (@marbar3778)
[types] #5340 Add check in Header.ValidateBasic() for block protocol version (@marbar3778)

[blockchain] #5249 Fix fast sync halt with initial height > 1 (@erikgrinaker)
[statesync] #5302 Fix genesis state propagation to state sync routine (@erikgrinaker)
[statesync] #5320 Broadcast snapshot request to all pre-connected peers on start (@erikgrinaker)
[consensus] #5329 Fix wrong proposer schedule for validators returned by InitChain (@erikgrinaker)
[light] #5307 Persist correct proposer priority in light client validator sets (@cmwaters)