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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

Upcoming deprecated method removal notice

In the v0.26.0 these features and functions will be removed. If you have a need for any of these features, let us know.

Notice

Nodes v0.23.0 and earlier will not be able to connect to v0.25.0 due to a change in the introduction packet message.

Nodes v0.24.1 and earlier will not be able to connect to v0.26.0 due to a similar change.

Make sure to upgrade to v0.25.0 so that your node will continue to connect once v0.26.0 is released.

Added

  • Add -csv option to cli send and cli createRawTransaction, which will send coins to multiple addresses defined in a csv file
  • Add -disable-default-peers option to disable the default hardcoded peers and mark all cached peers as untrusted
  • Add -custom-peers-file to load peers from disk. This peers file is a newline separate list of ip:port strings
  • Add csrf_enabled, csp_enabled, wallet_api_enabled, unversioned_api_enabled, gui_enabled and json_rpc_enabled configuration settings to the /api/v1/health endpoint response
  • Add verbose flag to /api/v1/block, /api/v1/blocks, /api/v1/last_blocks, /api/v1/pendingTxs, /api/v1/transaction, /api/v1/transactions, /api/v1/wallet/transactions to return verbose block data, which includes the address, coins, hours and calculcated_hours of the block's transaction's inputs
  • Add encoded flag to /api/v1/transaction to return an encoded transaction
  • Add -http-prof-host option to choose the HTTP profiler's bind hostname (defaults to localhost:6060)
  • Add -enable-api-sets, -disable-api-sets, -enable-all-api-sets options to choose which sets of API endpoints to enable. Options are READ, STATUS, TXN, WALLET, PROMETHEUS, INSECURE_WALLET_SEED, DEPRECATED_WALLET_SPEND. Multiple values must be comma separated.
  • /api/v1/wallet/spend is deprecated and requires -enable-api-set=DEPRECATED_WALLET_SPEND to enable it. Use /api/v1/wallet/transaction and /api/v1/injectTransaction instead.
  • Add -host-whitelist option to specify alternate allowed hosts when communicating with the API bound to a localhost interface
  • Add the head block header to the response of GET /api/v1/outputs
  • Add "ux_hash" to block headers in API responses
  • Database verification will only be performed once when upgrading to the next version. Verification will not be performed on subsequent upgrades unless necessary. To force verification, use -verify-db=true. Note that it is unsafe to downgrade the skycoin node without erasing the database first.
  • Add seqs parameter to /api/v1/blocks to query multiple blocks by sequences
  • Add /api/v2/wallet/recover to recover an encrypted wallet by providing the seed
  • Add HTTP Basic Auth options -web-interface-username and -web-interface-password. Auth is only available when using -web-interface-https unless -web-interface-plaintext-auth is also used.
  • Go application metrics exported at /api/v2/metrics (API set PROMETHEUS) in Prometheus format
  • Add /api/v2/wallet/recover to recover an encrypted wallet by providing the seed
  • Add fiberAddressGen CLI command to generate distribution addresses for fiber coins
  • Coinhour burn factor can be configured at runtime with COINHOUR_BURN_FACTOR envvar
  • Daemon configured builds will be available on the releases page. The builds available for previous versions are configured for desktop client use.
  • skycoin-cli builds will be available on the releases page.

Fixed

  • Fix hanging process caused when the p2p listener port is already in use
  • Fix exit status of CLI tool when wallet file cannot be loaded
  • Fix calculated_hours and fee in /api/v1/explorer/address responses
  • Fix calculated_hours and fee in /api/v2/transaction/verify responses for confirmed transactions
  • /api/v1/blocks and /api/v1/last_blocks return 500 instead of 400 on database errors
  • POST /api/v1/wallet returns 500 instead of 400 for internal errors
  • Fix unspent output hashes in the cli decodeRawTransaction result
  • POST /api/v1/wallet/newAddress and POST /api/v1/wallet/spend will correctly fail if the wallet is not encrypted but a password is provided
  • Return 503 error for /api/v1/injectTransaction for all message broadcast failures (note that it is still possible for broadcast to fail but no error to be returned, in certain conditions)
  • Fixed autogenerated HTTPS certs. Certs are now self-signed ECDSA certs, valid for 10 years, valid for localhost and all public interfaces found on the machine. The default cert and key are renamed from cert.pem, key.pem to skycoind.cert, skycoind.key

Changed

  • Add blockchain pubkey in introduction message, it would close the connection if the pubkey is not matched, but would accept it if pubkey is not provided.
  • CLI tool uses the REST API instead of the deprecated webrpc API to communicate with the node
  • cli status return value is now the response from GET /api/v1/health, which changes some fields
  • /api/v1/network/ endpoints will return an empty array for array values instead of null
  • /api/v1/blocks will return an empty array for "blocks" instead of null
  • /api/v1/blockchain/progress will return an empty array for "peers" instead of null
  • go run cmd/skycoin/skycoin.go will have exit status 1 on failure and exit status 2 on panic
  • The deprecated JSON 2.0 RPC interface is disabled by default for all run modes, since it is no longer needed for the CLI tool
  • Remove "unknown" from the "status" field in responses from /api/v1/explorer/address, /api/v1/transaction, /api/v1/transactions
  • cli decodeRawTransaction output format changed, see the CLI README
  • /api/v1/wallet/spend is deprecated, disabled by default and requires -enable-api-sets=DEPRECATED_WALLET_SPEND to enable it. Use /api/v1/wallet/transaction and /api/v1/injectTransaction instead.
  • Invalid password in /api/v1/wallet requests now return 400 instead of 401
  • Replace cmd/address_gen/ and cmd/address_gen2 with go run cmd/cli/cli.go addressGen
  • cli addressGen arguments have changed
  • cli generateWallet renamed to cli walletCreate
  • cli generateAddresses renamed to cli walletAddAddresses
  • run.sh is now run-client.sh and a new run-daemon.sh script is added for running in server daemon mode.
  • /api/v1/explorer/address is deprecated in favor of /api/v1/transactions?verbose=1

Removed

  • Remove USE_CSRF envvar from the CLI tool. It uses the REST API client now, which will automatically detect CSRF as needed, so no additional configuration is necessary. Operators may still wish to disable CSRF on their remote node to reduce request overhead.
  • Remove -enable-wallet-api and -enable-seed-api in place of including WALLET and INSECURE_WALLET_SEED in -enable-api-sets.
  • Copies of the source code removed from release builds due to build artifact size

0.24.1 - 2018-07-30

Added

  • Add Content-Security-Policy header to http responses

Fixed

  • Fix portable browser version opening to blank page

Changed

  • Increase visor db timeout to 5000 ms
  • Change InitTransaction to accept parameters for distributing genesis coin to distribution wallets

Removed

0.24.0 - 2018-07-06

Added

  • Minimum go version is go1.10
  • Add environment variable DATA_DIR in CLI
  • USE_CSRF environment variable for CLI, if the remote node has CSRF enabled (CSRF is enabled by default, use -disable-csrf to disable)
  • cli showConfig command to echo the cli's configuration back to the user
  • Option to generate 12/24 word seed when creating new wallet
  • libskycoin 0.0.1 released with bindings for cipher/address, cipher/hash, cipher/crypto, cli/create_rawtx
  • Add -version flag to show node version
  • Add transaction verification step to "Send" page
  • Add more details about transaction in transaction history
  • Add advanced spend UI
  • Add CLI encryptWallet command
  • Add CLI decryptWallet command
  • Add CLI showSeed command
  • Add password argument to the CLI commands of addPrivateKey, createRawTransaction, generateAddresses, generateWallet, send
  • Support for decoding map values in cipher binary encoder
  • Expose known block height of peer in brand new height field added in responses of GET /api/v1/network/connections API endpoints
  • -verify-db option (default true), will verify the database integrity during startup and exit if a problem is found
  • -reset-corrupt-db option (default false) will verify the database integrity during startup and reset the db if a problem is found
  • GET /explorer/address: add fee to transaction objects and calculated_hours to transaction inputs
  • Test data generator and test suite for verification of alternative cipher implementations
  • Begin /api/v2 API endpoints. These endpoints are in beta and subject to change.
  • Add POST /api/v2/transaction/verify API endpoint
  • Add POST /api/v2/address/verify API endpoint
  • Add ignore_unconfirmed option to POST /api/v1/wallet/transaction to allow transactions to be created or spent even if there are unspent outputs in the unconfirmed pool.
  • Add uxouts to POST /api/v1/wallet/transaction, to allow specific unspent outputs to be used in a transaction.
  • Add Dockerfile in docker/images/dev-cli to build a docker image suitable for development.
  • Coin creator tool, cmd/newcoin, to quickly bootstrap a new fiber coin
  • Add Dockerfile in docker/images/dev-dind to build a docker in docker image based on skycoindev-cli.

Fixed

  • Reduce connection disconnects, improves syncing
  • Fix #1171, update CLI to support wallet encryption
  • Use bolt.Tx correctly for read operations
  • Docker images for arm32v5 and ar32v7 architectures by using busybox as base in docker/images/mainnet/Dockerfile and docker/images/mainnet/hooks/

Changed

  • JSON 2.0 RPC interface (used by the CLI tool) is now served on the same host interface as the REST API, port 6420. The additional listener has been removed.
  • CLI's RPC_ADDR environment variable must now start with a scheme e.g. http://127.0.0.1:6420, previously it did not use a scheme.
  • API response will be gzip compressed if client sends request with 'Accept-Encoding' contains 'gzip' in the header.
  • GET /api/v1/wallet/balance and GET /api/v1/balance now return an address balance list as well.
  • API endpoints are prefixed with /api/v1/. API endpoints without the /api/v1/ prefix are deprecated but can be enabled with -enable-unversioned-api. Please migrate to use /api/v1/ prefix in URLs.
  • Enable message protocol upgrade
  • change_address is no longer required in POST /api/v1/wallet/transaction. If not provided, change_address will default to one of the addresses being spent from.
  • In POST /api/v1/wallet/transaction, for auto type share mode requests, if extra coinhours remain after applying the share_factor but change cannot be made due to insufficient coins, the share_factor will switch to 1.0.
  • Support automatic port allocation of the API interface by specifying port 0
  • The web interface / API port is randomly allocated for the precompiled standalone client and electron client released on the website. If you are using the CLI tool or another API client to communicate with the standalone client, use -web-interface-port=6420 to continue using port 6420. If the program is run from source (e.g. go run, run.sh, make run) there is no change, the API will still be on port 6420.
  • Change number of outgoing connections to 8 from 16
  • Transaction history shows transactions between own addresses
  • Client will only maintain one connection to the default hardcoded peers, instead of all of them

Removed

  • Remove -rpc-interface-addr, -rpc-interface-port options. The RPC interface is now on default port 6420 with the REST API.
  • Remove -rpc-thread-num option
  • Remove -connect-to option
  • Remove -print-web-interface-address option
  • Remove support for go1.9

0.23.0 - 2018-04-22

Added

  • Add wallet setup wizard
  • Add wallet encryption, using chacha20+poly1305 for encryption and authentication and scrypt for key derivation. Encrypted data is stored in the wallet file in a "secrets" metadata field
  • Add GET /health endpoint
  • Add POST /wallet/transaction API endpoint, creates a transaction, allowing control of spending address and multiple destinations
  • Add POST /wallet/encrypt API endpoint, encrypts wallet and returns encrypted wallet without sensitive data
  • Add POST /wallet/decrypt API endpoint, decrypts wallet and returns decrypted wallet without sensitive data
  • Add POST /wallet/seed API endpoint, returns the seed of an encrypted wallet. Unencrypted wallets will not expose their seeds over the API. Requires -enable-seed-api option
  • -enable-seed-api option to enable POST /wallet/seed
  • Add "size" to block API response data (affects GET /block, GET /blocks and GET /last_blocks)
  • Write specification for skycoin URIs (based upon bip21)

Fixed

  • #1309, Float imprecision error in frontend malformed some spend amounts, preventing the spend
  • Fix one aspect of sync stalling caused by a 5-second blocking channel write by switching it to a non-blocking write, decreasing timeouts and increasing buffer sizes

Changed

  • GET /wallet API endpoint, remove sensitive data from the response, and fix the data format to be the same as POST /wallet/create
  • GET /wallets API endpoint, remove sensitive data from the response
  • POST /wallet/create API endpoint, add encrypt(bool) and password argument
  • POST /wallet/newAddress API endpoint, add password argument
  • POST /wallet/spend API endpoint, add password argument
  • Change -disable-wallet-api to -enable-wallet-api, and disable the wallet API by default
  • -launch-browser is set to false by default
  • A default wallet will not be created on startup if there is no wallet. Instead, the wallet setup wizard will run
  • Replace op/go-logging with logrus
  • Disable JSON-RPC 2.0 interface when running the application with run.sh and electron
  • Whitespace will be trimmed from the seed string by the frontend client before creating or loading a wallet
  • Notify the user when their wallets have unconfirmed transactions
  • Return an error when providing a transaction that spends to the null address in POST /injectTransaction
  • Change accepted -log-level values to debug, info, warn, error, fatal and panic (previously were debug, info, notice, warning, error and critical)
  • Default log level is info

Removed

  • Remove "seed", "lastSeed" and "secret_key" in address entries from wallet API responses. A wallet's seed can be accessed through POST /wallet/seed only if the wallet is encrypted and the node is run with -enable-seed-api
  • Remove unused -logtogui and -logbufsize options

0.22.0 - 2018-03-20

Added

  • go1.10 support
  • Add Dockerfile
  • Add libskycoin C API wrapper
  • New wallet UI
  • Notify the user when a new version is available
  • CLI and GUI integration tests against a stable and live blockchain
  • #877, Add -disable-wallet-api CLI option
  • HTTP API client
  • /richlist API method, returns top n address balances
  • /addresscount API method, returns the number of addresses that have any amount of coins
  • /transactions API method, returns transactions of addresses
  • /wallet/unload API method, removes the wallet of given id from wallet services

Fixed

  • #1021, remove SendOr404 and SendOr500 as they do not work properly due to typed nils
  • Add Read, Write and Idle timeouts to the HTTP listener, preventing file descriptor leaks
  • Support absolute and relative paths for -data-dir option
  • Prevent creating transactions whose size exceeds the maximum block size
  • Check addition and multiplication uint64 overflow
  • Keep trusted peers in the peerlist permanently, even if they are unreachable
  • #885, Add Host header check to localhost HTTP interfaces to prevent DNS rebinding attacks
  • #896, Add CSRF check to wallet API
  • Fix base58 address parsing, which allowed leading invalid characters and treated unknown characters as a '1'
  • Fix occasional error which causes blockchain progress not to be shown in front-end

Changed

  • #1080, /wallet/transactions now returns a proper json object with pending transactions under transactions key
  • #951, cap cli createRawTransaction and send command coinhour distribution, coinhours are capped to a maximum of receiving coins for the address with a minimum of 1 coinhour
  • Upgrade to Angular 5
  • Add total_coinhour_supply and current_coinhour_supply to /coinSupply endpoint
  • #800, Add entropy parameter to /wallet/newSeed endpoint. Entropy can be 128 (default) or 256, corresponding to 12- and 24-word seeds respectively
  • #866, Include coins and hours in /explorer/address inputs
  • Rename cached peers.txt file to peers.json

Removed

  • Remove /lastTxs API endpoint
  • Remove /logs and log buffering due to possible crash
  • Remove /wallets/reload endpoint
  • Remove deprecated /api/getEffectiveOutputs, use /coinSupply.

0.21.1 - 2017-12-14

Fixed

  • Fix blank page issue in windows gui wallet, which was caused by misusing the flag of -download-peers-list in electron.

0.21.0 - 2017-12-10

Added

  • Require transactions to have an input with non-zero coinhours
  • Add -peerlist-size and -max-outgoing-connections CLI options
  • Add -download-peerlist and -peerlist-url CLI options, to get peers from a URL
  • For electron clients, download a list of peers from https://downloads.skycoin.net/blockchain/peers.txt by default

Fixed

  • Fix change hours calculation. Previous gave 1/8 to change and destination addresses; now gives 1/4 to each
  • #653, the peerlist size was too small and could be easily filled up; default changed to 65535 from 1000

Changed

  • CLI's walletBalance and addressBalance commands return aggregate balances for confirmed, spendable and expected balances. Coins are formatted as droplet strings. Hours added as strings.
  • When splitting an odd number of hours in a spend, give the extra hour to the fee
  • Add block_seq to get_outputs and /outputs API response
  • Improve UxOut spend selection. Previously, they were spent oldest first. Now they are spent to ensure a non-zero coinhour input and otherwise minimize coinhours.
  • create_rawtx will try to minimize the number of UxOuts used to create a transaction.
  • /wallet/spend will try to maximize the number of UxOuts used to create a transaction.
  • Update the default peerlist size to 65535 from 1000
  • When loading a wallet, 100 addresses will be scanned ahead to find one with a balance

0.20.4 - 2017-11-22

Added

  • Add /logs api to filter skycoin logs, so that we can add a debug panel to the GUI wallet to show logs

0.20.3 - 2017-10-23

Fixed

  • Fix block sync stall (mostly affected Windows users, but any OS was potentially affected)

0.20.2 - 2017-10-12

Fixed

  • Fixed Linux .AppImage missing "Category" field
  • Clean up electron build script, switch to yarn and remove gulp

0.20.1 - 2017-10-12

Fixed

  • Fixed app icon padding

0.20.0 - 2017-10-10

Added

  • New wallet frontend in angular4. This is a complete rewrite and fixes many of the old wallet issues.
  • New wallet has preliminary support for OTC functionality
  • Create webrpc.Client for JSON-2.0 RPC calls.
  • Add this CHANGELOG.md file.
  • Add Installation.md file, with install instructions for go.
  • Timelock distribution addresses. The first 25% of the distribution is spendable. After that 25% is spent, a timestamp will be added to the code to enable further distribution.
  • Add /coinSupply endpoint. Correctly returns total, locked and unlocked coin amounts.
  • testutil package for common test setup methods.
  • /version endpoint, which will return the current node version number and the HEAD commit id when build the node
  • -no-ping-log option to disable ping/pong log output
  • Check for invalid block signatures during startup and recreate the database if they are corrupted.
  • Add methods for converting fixed-point decimal strings to droplets and vice versa.
  • Add make run, make test, make lint, make check to Makefile

Changed

  • Flag peers as incoming or outgoing.
  • Refactor to decouple wallet and visor package.
  • Refactor cli package for use as a library.
  • README improvements.
  • Set default wallet's label as "Your Wallet"
  • Use BIP32 mnemomic seeds by default in address_gen.
  • Add -x option to address_gen, to generate a random base64-encoded 128-bit seed instead of a BIP32 mnemomic seed.
  • Add -v option to address_gen to print all address information (pubkey, seckey, address, seed) to stdout as JSON.
  • All API and CLI methods with "coin"-related arguments must be a string and can use decimal notation to specify coin amounts.
  • CLI's walletHistory command prints amounts as fixed-point decimal strings. Previously, it printed amounts as integers representing whole skycoin amounts, and did not support droplets / fractional skycoins.
  • A user is prevented from broadcasting a new transaction with unspent outputs that they have already sent as an unconfirmed transaction.

Deprecated

  • /api/getEffectiveOutputs is deprecated in favor of /coinSupply.

Removed

  • Old wallet
  • /api/create-address endpoint (use the address_gen tool)

Fixed

  • Wallet folder path loading.
  • #371 Fix /wallet/spend, will return only when pending transaction is confirmed.
  • #443 Fix predicted balance in /wallet/spend API call.
  • #444 Fix bug in /blockchain/progress API call.
  • Removed globals in gui package that caused race condition with wallet API calls.
  • #494 Clean invalid unconfirmed transactions during startup.
  • Various race conditions around the bolt.DB blockchain DB
  • Missing strand() call in daemon.Visor.AnnounceTxns.

Security

0.19.1 - 2017-08-26

Fixed

  • #459 dist folder in repo out of date, wallet gui does not load

0.19.0 - 2017-07-11

Added

  • Add synchronize indicator when downloading blocks.
  • #352 Store unspent pool in db for quick recovery when node restart
  • Speed up the time the node start the browser
  • Cache unspent pool in memory to speed up query action
  • #411 Add button to hide seed
  • #380 Move anything with heavy imports into util sub package

Fixed

  • #421 Sort wallet transaction history by time
  • #398 Remove seeds from DOM
  • #390 Make go test ./src/... work
  • #383 Error during installation from skycoin source code
  • #375 Node can't recovery from zero connections
  • #376 Explorer api /explorer/address does not return spend transactions
  • #373 Master node will be closed if there're no transactions need to execute
  • #360 Node will crash when do ctrl+c while downloading blocks
  • #350 Wallet name always 'undefined' after loading wallet from seed