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BREAKING CHANGES

  • Gaia REST API (gaiacli advanced rest-server)

    • [x/stake] Validator.Owner renamed to Validator.Operator
    • #595 Connections to the REST server are now secured using Transport Layer Security by default. The --insecure flag is provided to switch back to insecure HTTP.
    • [gaia-lite] #2258 Split GET stake/delegators/{delegatorAddr} into GET stake/delegators/{delegatorAddr}/delegations, GET stake/delegators/{delegatorAddr}/unbonding_delegations and GET stake/delegators/{delegatorAddr}/redelegations

  • Gaia CLI (gaiacli)

    • [x/stake] Validator.Owner renamed to Validator.Operator
    • [cli] unsafe_reset_all, show_validator, and show_node_id have been renamed to unsafe-reset-all, show-validator, and show-node-id
    • [cli] #1983 --print-response now defaults to true in commands that create and send a transaction
    • [cli] #1983 you can now pass --pubkey or --address to gaiacli keys show to return a plaintext representation of the key's address or public key for use with other commands
    • [cli] #2061 changed proposalID in governance REST endpoints to proposal-id
    • [cli] #2014 gaiacli advanced no longer exists - to access ibc, rest-server, and validator-set commands use gaiacli ibc, gaiacli rest-server, and gaiacli tendermint, respectively
    • [makefile] get_vendor_deps no longer updates lock file it just updates vendor directory. Use update_vendor_deps to update the lock file. #2152
    • [cli] #2221 All commands that utilize a validator's operator address must now use the new Bech32 prefix, cosmosvaloper.
    • [cli] #2190 gaiacli init --gen-txs is now gaiacli init --with-txs to reduce confusion
    • [cli] #2073 --from can now be either an address or a key name
    • [cli] #1184 Subcommands reorganisation, see #2390 for a comprehensive list of changes.
    • [cli] #2524 Add support offline mode to gaiacli tx sign. Lookups are not performed if the flag --offline is on.
    • [cli] #2570 Add commands to query deposits on proposals

  • Gaia

    • Make the transient store key use a distinct store key. #2013
    • [x/stake] #1901 Validator type's Owner field renamed to Operator; Validator's GetOwner() renamed accordingly to comply with the SDK's Validator interface.
    • [docs] #2001 Update slashing spec for slashing period
    • [x/stake, x/slashing] #1305 - Rename "revoked" to "jailed"
    • [x/stake] [#1676] Revoked and jailed validators put into the unbonding state
    • [x/stake] [#1877] Redelegations/unbonding-delegation from unbonding validator have reduced time
    • [x/slashing] #1789 Slashing changes for Tendermint validator set offset (NextValSet)
    • [x/stake] #2040 Validator operator type has now changed to sdk.ValAddress
    • [x/stake] #2221 New Bech32 prefixes have been introduced for a validator's consensus address and public key: cosmosvalcons and cosmosvalconspub respectively. Also, existing Bech32 prefixes have been renamed for accounts and validator operators:
      • cosmosaccaddr / cosmosaccpub => cosmos / cosmospub
      • cosmosvaladdr / cosmosvalpub => cosmosvaloper / cosmosvaloperpub
    • [x/stake] [#1013] TendermintUpdates now uses transient store
    • [x/stake] #2435 Remove empty bytes from the ValidatorPowerRank store key
    • [x/gov] [#2195] Governance uses BFT Time
    • [x/gov] #2256 Removed slashing for governance non-voting validators
    • [simulation] #2162 Added back correct supply invariants
    • [x/slashing] #2430 Simulate more slashes, check if validator is jailed before jailing
    • [x/stake] #2393 Removed CompleteUnbonding and CompleteRedelegation Msg types, and instead added unbonding/redelegation queues to endblocker
    • [x/mock/simulation] #2501 Simulate transactions & invariants for fee distribution, and fix bugs discovered in the process
      • [x/auth] Simulate random fee payments
      • [cmd/gaia/app] Simulate non-zero inflation
      • [x/stake] Call hooks correctly in several cases related to delegation/validator updates
      • [x/stake] Check full supply invariants, including yet-to-be-withdrawn fees
      • [x/stake] Remove no-longer-in-use store key
      • [x/slashing] Call hooks correctly when a validator is slashed
      • [x/slashing] Truncate withdrawals (unbonding, redelegation) and burn change
      • [x/mock/simulation] Ensure the simulation cannot set a proposer address of nil
      • [x/mock/simulation] Add more event logs on begin block / end block for clarity
      • [x/mock/simulation] Correctly set validator power in abci.RequestBeginBlock
      • [x/minting] Correctly call stake keeper to track inflated supply
      • [x/distribution] Sanity check for nonexistent rewards
      • [x/distribution] Truncate withdrawals and return change to the community pool
      • [x/distribution] Add sanity checks for incorrect accum / total accum relations
      • [x/distribution] Correctly calculate total power using Tendermint updates
      • [x/distribution] Simulate withdrawal transactions
      • [x/distribution] Fix a bug where the fee pool was not correctly tracked on WithdrawDelegatorRewardsAll
    • [x/stake] #1673 Validators are no longer deleted until they can no longer possibly be slashed
    • #1890 Start chain with initial state + sequence of transactions
      • [cli] Rename gaiad init gentx to gaiad gentx.
      • [cli] Add --skip-genesis flag to gaiad init to prevent genesis.json generation.
      • Drop GenesisTx in favor of a signed StdTx with only one MsgCreateValidator message.
      • [cli] Port gaiad init and gaiad testnet to work with StdTx genesis transactions.
      • [cli] Add --moniker flag to gaiad init to override moniker when generating genesis.json - i.e. it takes effect when running with the --with-txs flag, it is ignored otherwise.

  • SDK

    • [core] #2219 Update to Tendermint 0.24.0
      • Validator set updates delayed by one block
      • BFT timestamp that can safely be used by applications
      • Fixed maximum block size enforcement
    • [core] #1807 Switch from use of rational to decimal
    • [types] #1901 Validator interface's GetOwner() renamed to GetOperator()
    • [x/slashing] #2122 - Implement slashing period
    • [types] #2119 Parsed error messages and ABCI log errors to make them more human readable.
    • [types] #2407 MulInt method added to big decimal in order to improve efficiency of slashing
    • [simulation] Rename TestAndRunTx to Operation #2153
    • [simulation] Remove log and testing.TB from Operation and Invariants, in favor of using errors #2282
    • [simulation] Remove usage of keys and addrs in the types, in favor of simulation.Account #2384
    • [tools] Removed gocyclo #2211
    • [baseapp] Remove SetTxDecoder in favor of requiring the decoder be set in baseapp initialization. #1441
    • [baseapp] #1921 Add minimumFees field to BaseApp.
    • [store] Change storeInfo within the root multistore to use tmhash instead of ripemd160 #2308
    • [codec] #2324 All referrences to wire have been renamed to codec. Additionally, wire.NewCodec is now codec.New().
    • [types] #2343 Make sdk.Msg have a names field, to facilitate automatic tagging.
    • [baseapp] #2366 Automatically add action tags to all messages
    • [x/auth] #2377 auth.StdSignMsg -> txbuilder.StdSignMsg
    • [x/staking] #2244 staking now holds a consensus-address-index instead of a consensus-pubkey-index
    • [x/staking] #2236 more distribution hooks for distribution
    • [x/stake] #2394 Split up UpdateValidator into distinct state transitions applied only in EndBlock
    • [x/slashing] #2480 Fix signing info handling bugs & faulty slashing
    • [x/stake] #2412 Added an unbonding validator queue to EndBlock to automatically update validator.Status when finished Unbonding
    • [x/stake] #2500 Block conflicting redelegations until we add an index
    • [x/params] Global Paramstore refactored
    • [types] #2506 sdk.Dec MarshalJSON now marshals as a normal Decimal, with 10 digits of decimal precision
    • [x/stake] #2508 Utilize Tendermint power for validator power key
    • [x/stake] #2531 Remove all inflation logic
    • [x/mint] #2531 Add minting module and inflation logic
    • [x/auth] #2540 Rename AccountMapper to AccountKeeper.

  • Tendermint

    • Update tendermint version from v0.23.0 to v0.25.0, notable changes
      • Mempool now won't build too large blocks, or too computationally expensive blocks
      • Maximum tx sizes and gas are now removed, and are implicitly the blocks maximums
      • ABCI validators no longer send the pubkey. The pubkey is only sent in validator updates
      • Validator set changes are now delayed by one block
      • Block header now includes the next validator sets hash
      • BFT time is implemented
      • Secp256k1 signature format has changed
      • There is now a threshold multisig format
      • See the tendermint changelog for other changes.

FEATURES

  • Gaia REST API (gaiacli advanced rest-server)

    • [gaia-lite] Endpoints to query staking pool and params
    • [gaia-lite] #2110 Add support for simulate=true requests query argument to endpoints that send txs to run simulations of transactions
    • [gaia-lite] #966 Add support for generate_only=true query argument to generate offline unsigned transactions
    • [gaia-lite] #1953 Add /sign endpoint to sign transactions generated with generate_only=true.
    • [gaia-lite] #1954 Add /broadcast endpoint to broadcast transactions signed by the /sign endpoint.
    • [gaia-lite] #2113 Rename /accounts/{address}/send to /bank/accounts/{address}/transfers, rename /accounts/{address} to /auth/accounts/{address}
    • [gaia-lite] #2478 Add query gov proposal's deposits endpoint
    • [gaia-lite] #2477 Add query validator's outgoing redelegations and unbonding delegations endpoints

  • Gaia CLI (gaiacli)

    • [cli] Cmds to query staking pool and params
    • [gov][cli] #2062 added --proposal flag to submit-proposal that allows a JSON file containing a proposal to be passed in
    • #2040 Add --bech to gaiacli keys show and respective REST endpoint to provide desired Bech32 prefix encoding
    • [cli] #2047 #2306 Passing --gas=simulate triggers a simulation of the tx before the actual execution. The gas estimate obtained via the simulation will be used as gas limit in the actual execution.
    • [cli] #2047 The --gas-adjustment flag can be used to adjust the estimate obtained via the simulation triggered by --gas=simulate.
    • [cli] #2110 Add --dry-run flag to perform a simulation of a transaction without broadcasting it. The --gas flag is ignored as gas would be automatically estimated.
    • [cli] #2204 Support generating and broadcasting messages with multiple signatures via command line:
      • #966 Add --generate-only flag to build an unsigned transaction and write it to STDOUT.
      • #1953 New sign command to sign transactions generated with the --generate-only flag.
      • #1954 New broadcast command to broadcast transactions generated offline and signed with the sign command.
    • [cli] #2220 Add gaiacli config feature to interactively create CLI config files to reduce the number of required flags
    • [stake][cli] #1672 Introduced new commission flags for validator commands create-validator and edit-validator.
    • [stake][cli] #1890 Add --genesis-format flag to gaiacli tx create-validator to produce transactions in genesis-friendly format.

  • Gaia

    • [cli] #2170 added ability to show the node's address via gaiad tendermint show-address
    • [simulation] #2313 Reworked make test_sim_gaia_slow to make test_sim_gaia_full, now simulates from multiple starting seeds in parallel
    • [cli] [#1921] (cosmos#1921)
      • New configuration file gaiad.toml is now created to host Gaia-specific configuration.
      • New --minimum_fees/minimum_fees flag/config option to set a minimum fee.

  • SDK

    • [querier] added custom querier functionality, so ABCI query requests can be handled by keepers
    • [simulation] #1924 allow operations to specify future operations
    • [simulation] #1924 Add benchmarking capabilities, with makefile commands "test_sim_gaia_benchmark, test_sim_gaia_profile"
    • [simulation] #2349 Add time-based future scheduled operations to simulator
    • [x/auth] #2376 Remove FeePayer() from StdTx
    • [x/stake] #1672 Implement basis for the validator commission model.
    • [x/auth] Support account removal in the account mapper.

  • Tendermint

IMPROVEMENTS

  • [tools] Improved terraform and ansible scripts for infrastructure deployment

  • [tools] Added ansible script to enable process core dumps

  • Gaia REST API (gaiacli advanced rest-server)

    • [x/stake] #2000 Added tests for new staking endpoints
    • [gaia-lite] #2445 Standarized REST error responses
    • [gaia-lite] Added example to Swagger specification for /keys/seed.
    • [x/stake] Refactor REST utils

  • Gaia CLI (gaiacli)

    • [cli] #2060 removed --select from block command
    • [cli] #2128 fixed segfault when exporting directly after gaiad init
    • [cli] #1255 open KeyBase in read-only mode for query-purpose CLI commands

  • Gaia

    • [x/stake] #2023 Terminate iteration loop in UpdateBondedValidators and UpdateBondedValidatorsFull when the first revoked validator is encountered and perform a sanity check.
    • [x/auth] Signature verification's gas cost now accounts for pubkey type. #2046
    • [x/stake] [x/slashing] Ensure delegation invariants to jailed validators #1883.
    • [x/stake] Improve speed of GetValidator, which was shown to be a performance bottleneck. #2046
    • [x/stake] #2435 Improve memory efficiency of getting the various store keys
    • [genesis] #2229 Ensure that there are no duplicate accounts or validators in the genesis state.
    • [genesis] #2450 Validate staking genesis parameters.
    • Add SDK validation to config.toml (namely disabling create_empty_blocks) #1571
    • #1941(cosmos#1941) Version is now inferred via git describe --tags.
    • [x/distribution] #1671 add distribution types and tests

  • SDK

    • [tools] Make get_vendor_deps deletes .vendor-new directories, in case scratch files are present.
    • [spec] Added simple piggy bank distribution spec
    • [cli] #1632 Add integration tests to ensure basecoind init && basecoind start sequences run successfully for both democoin and basecoin examples.
    • [store] Speedup IAVL iteration, and consequently everything that requires IAVL iteration. #2143
    • [store] #1952, #2281 Update IAVL dependency to v0.11.0
    • [simulation] Make timestamps randomized #2153
    • [simulation] Make logs not just pure strings, speeding it up by a large factor at greater block heights #2282
    • [simulation] Add a concept of weighting the operations #2303
    • [simulation] Logs get written to file if large, and also get printed on panics #2285
    • [simulation] Bank simulations now makes testing auth configurable #2425
    • [gaiad] #1992 Add optional flag to gaiad testnet to make config directory of daemon (default gaiad) and cli (default gaiacli) configurable
    • [x/stake] Add stake Queriers for Gaia-lite endpoints. This increases the staking endpoints performance by reusing the staking keeper logic for queries. #2249
    • [store] #2017 Refactor gas iterator gas consumption to only consume gas for iterator creation and Next calls which includes dynamic consumption of value length.
    • [types/decimal] #2378 - Added truncate functionality to decimal
    • [client] #1184 Remove unused client/tx/sign.go.
    • [tools] #2464 Lock binary dependencies to a specific version

  • Tendermint

BUG FIXES

  • Gaia REST API (gaiacli advanced rest-server)

  • Gaia CLI (gaiacli)

    • [cli] #1997 Handle panics gracefully when gaiacli stake {delegation,unbond} fail to unmarshal delegation.
    • [cli] #2265 Fix JSON formatting of the gaiacli send command.
    • [cli] #2547 Mark --to and --amount as required flags for gaiacli tx send.

  • Gaia

    • [x/stake] Return correct Tendermint validator update set on EndBlocker by not including non previously bonded validators that have zero power. #2189

  • SDK

    • #1988 Make us compile on OpenBSD (disable ledger) [#1988] (cosmos#1988)
    • #2105 Fix DB Iterator leak, which may leak a go routine.
    • [ledger] #2064 Fix inability to sign and send transactions via the LCD by loading a Ledger device at runtime.
    • #2158 Fix non-deterministic ordering of validator iteration when slashing in gov EndBlocker
    • [simulation] #1924 Make simulation stop on SIGTERM
    • #2388 Remove dependency on deprecated tendermint/tmlibs repository.
    • #2416 Refactored InitializeTestLCD to properly include proposing validator in genesis state.

  • Tendermint