Feature list for v0.4.0

[Sword-Smith]

• mine_loop: Add two guesser-related CLI arguments guesser: Don't automatically switch block proposal #648
  • minimum guesser reward -- no guessing should start before this threshold is met
  • minimum guesser reward delta -- a delta in percentages for when the guesser should switch to a new proposal-
• mempool: Don't throw away single proof merge-inputs on successful merge mempool: Don't throw away merge inputs on successful merge #649
• wallet: Use archival state to set wallet's membership proofs, related to Archival Wallet Option #598 but without creating a new wallet -- just reuse the existing wallet and change function signature of WalletState::update_wallet_state_with_new_block to also take an Option<&ArchivalState> that can be used to set new membership proofs. This will significantly speed up state update on receiving a new block for nodes that handle many UTXOs, as the wallet state update is by far the bottle neck.
• Transactions proof upgrading: Allow user to define an n mod m filter for which transactions they upgrade -- such that multiple transaction proof upgraders run by the same entity do not do duplicate work.
• Transaction proof upgrading: Allow separate gobbling fractions for "raise" (ProofCollection -> SingleProof) and "merge", defaulting "merge" to zero. Avoiding fee gobbling in "merge" will significantly speed up how fast transactions can be merged, and if the tx proof upgrader has already collected fees through raising, no extra incentive/reward is needed for the merge service.

[aszepieniec]

I would like to nominate for attention before v0.3.1:

• Revise Directory Structure #533 Revise Directory Structure. Afaik there are no long-running branches at the moment, so now would be the right time to apply such a change.
• convert the Git commit hook into a CI check #632 Convert the Git Commit Hook into a CI Check. Only in extremely rare circumstances do we commit without the -n to suppress the commit hook, rendering it almost meaningless. Moreover, git rebase and its variants do not allow you suppress the hook to begin with, making rebase tasks and practicing git discipline a pain in the ass.
• fix(scan_mode): Bump known keys cache correctly #647 Update cached keys correctly
• feat: Add startup banner to CLI #642 Startup banner
• feat: add dump-db command to neptune-cli #637 CLI command dump-db

[Sword-Smith]

Branch thv/preserve-merge-inputs-in-mempool contains the start of the mempool task -- where merge inputs are not thrown away.