CHANGELOG.md

Version Scheme

Sia uses the following versioning scheme, vX.X.X

• First Digit signifies a major (compatibility breaking) release
• Second Digit signifies a major (non compatibility breaking) release
• Third Digit signifies a minor or patch release

Version History

Latest:

July 21, 2022

v1.5.9

Key Updates

• RHP: Added the ability to subscribe to registry entries by ID
• Host: storage proofs will now be reattempted every 3 blocks to prevent hosts from failing contracts due to temporary issues

Bugs Fixed

• Host: fixed a memory leak in RPC execute program
• Host: fixed a critical error being logged when calling the host.FinancialMetrics during shutdown.

Other

• Host: reduced the timeout for account withdrawals from 15 minutes to 5 minutes
• Startup: changed the startup order to attempt automatically unlock the wallet before loading other modules instead of waiting until all modules have loaded.
• Updated SiaMux dependency

May 17, 2022:

v1.5.8

Key Updates

• Add netaddress and IP blocking to renter
• Add progress alerts for folder add, resize, and remove

Bugs Fixed

• Fix contract sector removal lock contention

Other

• Add --upnp flag to disable UPnP port forwarding

Aug 27, 2021:

v1.5.7

Key Updates

• Remove Skynet API and references.
• Add support for registry entries with public keys for recovery.
• Updated the bootstrap peers to include only active v1.5.4+ peers.
• Add dockerfile and automatic builds to ghcr.io/siafoundation/siad

Bugs Fixed

• Fixed an issue with contractmanager.json being written to disk when the host is idle.
• Fixed an issue with the wallet block height not being updated correctly in some situations.
• Fix panic in SiaPublicKey.String when the key is too long.
• Fix critical error triggering in uploadchunkdistribution
• Fix contracts past their proof deadline remaining "unresolved".

Other

• Add --insecure-input flag to disable wallet unlock passwork masking
• Added contract ID to all contract lifecycle log messages in host.log
• Upgrade siamux dependency.

Apr 7, 2021:

v1.5.6

Key Updates

• Add repair information to FileInfo
• Add checking for duplicates when updating the skynet blocklist.
• Remove the wal from the .siadir
• Add bubbleScheduler to the renter to manage the bubble update requests
• Create an accounting module for the Sia node to provide basic accounting information about the modules.
• Track EA spending through the account spending details to see what the money from an ephemeral account is being spent on.
• add license to monetization
• remove rhp1 and rhp2 renew rpcs that don't clear the old contract upon renewal
• Add parsing of module names to siad -M and automatically enable the accountingand feemanager modules if the wallet is enabled.
• add ability to specify monetizers when uploading a skyfile
• update contract size we consider large from 2TB to 10TB to allow for larger contracts before slowing down updates to them.
• prevent large contracts from renewing if legacy renewal RPCs are used.

Bugs Fixed

• Changed the minimum acceptable version of gateway peers to 1.5.4 for the Foundation hardfork

• Fixed panic condition in the repair loop for the unique refresh paths.

Other

• Update .gitlab-ci.yml and Makefile to fix Windows nightly tests.
• adds a new endpoint /host/contracts/contractID that returns a single contract from the host's database
• extend account persistence to include spending details fields
• Add FundAccountSpending to the financial metrics in the Renter.
• Add MaintenanceSpending to the financial metrics in the Renter.

Feb 18, 2021:

v1.5.5

Key Updates

• Add the ability to backup a skylink and restore it from disk
• Add Skynet stats to the .siadir metadata.
• Add repair information to .siadir metadata
• Add stucksize to the directory metadata to show the amount of data being handled by the stuck loop.
• Change http status code for blocked content from 500 to 451
• have host send an "ok" response when unsubscribing from a registry value
• include the public key of the signed entry in the subscription notification response
• Add /renter/bubble route to be able to manually trigger bubble updates
• siac breaks down memory consumption of the individual memory managers
• Improve download speeds and consistency.
• Add siac skynet backup and siac skynet restore commands for backing up and restoring skyfiles.
• Update default redundancy to be 10-30 for Skyfiles that exceed a single sector in size.

Bugs Fixed

• The 'siac skynet upload' '-s' flag has been removed to fix a collision with the new global '-s' flag.
• Introduce overflow file for sectors where the location counter has reached a value of >= 2^16 to fix uploads failing for all zero sectors

Other

• Add deletion of files that contain blocked skylinks in the bubble code.

Jan 12, 2021:

v1.5.4

Key Updates

• Adds /skynet/root GET request to allow downloading a specific sector of a skyfile
• allow for migrating registry to custom path
• extend siac renter with optional currency conversion based on SIA_EXCHANGE_RATE env variable
• Update health loop to batch bubbles by subtree instead of individual directories
• add RHP3 RPC for atomic contract renewal
• Add /renter/clean API route with siac renter clean to remove lost files from renter. Also added siac renter lost to view lost files that would be removed.

Bugs Fixed

• Fixed uploadHead panic related to streaming caused by bad condition check.
• Fixed debug code that checks for contract header corruption.
• Fixed bug in skyfile fanout encoding that allowed for encoding empty piece root hashes.
• Fix panic condition in siafile conversion when attempted with encryption.
• Fixed bug in the skynet blocklist persist compat code where the compat code was not being triggered.

Other

• Add worker groups to the bubble code
• Add Portals to the TestGroup for skynet related testing.
• Add 'no-response-metadata' query string parameter that allows hiding the 'Skynet-File-Metadata' header from the response.
• Added a job to .gitlab-ci.yml to trigger Sia Antfarm version tests on Sia master updates and on Sia nightly executions.
• Add siac skynet isblocked command as a helper to check if a skylink is blocked since siac skynet blocklist returns a list of hashed merkleroots, so the list cannot be visually verified.

Nov 10, 2020:

v1.5.3

Bugs Fixed

• Updated siafile snapshots to only store range of chunks needed for repair to address OOM during large file repairs

Nov 9, 2020:

v1.5.2

Key Updates

• RHP3 Renewal RPC now only uses the Host's price table

Bugs Fixed

• Add missing error check in registry creation

Other

• Registry lookup to always return 404 even for timeouts

Nov 2, 2020:

v1.5.1

Key Updates

• Add basic watchdog to the feemanager
• Add /skynet/basesector to the API.
• Add --portal flag to siac skynet pin
• Add the ability to start and stop the profile via the API
• Add Skykey flags to convert command for encryption
• Enable adding or removing hashes of skylink merkleroots to the skynet blacklist
• allow for migrating registry to cstom path
• Update the upload streamer code to send chunks directly to the workers instead of through the uploadHeap.
• new acceptcontractadjustment in score breakdown
• reduced default period to 2 months
• extend /host [GET] to contain pricetable
• add API support for setting registry size
• move health summary from siac renter -v to siac renter health
• add timeout param to read registry api call
• add root flag to download endpoints
• add root flag to list downloads endpoint
• Add support for skykey delete in siac.
• Add support for uploading entire directories as skyfiles (e.g. siac skynet upload dir skyfile_name). The previous behavior of uploading all files individually is now available when the --separately flag is passed. Additional flags: --defaultpath and --disabledefaultpath. Those are full equivalents to the flags with the same names on the /skynet/skyfile/*siapath* [POST] endpoint.
• Added feature to use pipes with 'siac skynet upload'. e.g. 'dd if=/dev/zero bs=1M count=1000 | siac skynet upload 1GB.dat'

Bugs Fixed

• Fix unit of EphemeralAccountExpiry in the host persistence.
• Fix bug in append only persist code that left a file handle open.
• Ensure that only full paths are accepted when resolving skylinks.
• Properly handle URL-encoded characters in GET /skynet/skylink route.
• Fix bug in Filesystem list that duplicated directories returned for recursive calls
• Fixed edge case with the health loop where it would not find the correct directory to call bubble on due to the metadatas being out of sync from a shutdown with pending bubbles.
• Fix skykey default type in siac

Other

• Split out siac renter workers download and upload info
• Rename skynetblacklist to skynetblocklist
• Add ETag response header
• Fix setting GORACE for test-vlong in Makefile for Windows Gitlab runner.
• Update the README to remove the outdated raspberry pi info and link the official release locations.
• Add Skynet-Skylink response headers.
• Add the ability to parse base32 encoded Skylinks

Aug 5, 2020:

v1.5.0

Key Updates

• Add zip download format and set it as default format.
• add support for write MDM programs to host
• Added defaultpath - a new optional path parameter when creating Skylinks. It determines which is the default file to open in a multi-file skyfile.
• Add configModules to the API so that the siad modules can be return in /daemon/settings [GET]
• Allow the renew window to be larger than the period
• Convert skynetblacklist from merkleroots to hashes of the merkleroots
• split up the custom http status code returned by the API for unloaded modules into 2 distinct codes.
• Add daemon/stack endpoint to get the current stack trace.
• Add Skykey delete methods to API.
• Add disabledefaultpath - a new optional path parameter when creating Skylinks. It disables the default path functionality, guaranteeing that the user will not be automatically redirected to /index.html if it exists in the skyfile.
• Add 'siac' commands for the FeeManager
• Add TypePrivateID Skykeys with skyfile encryption support
• Added available and priority memory output to siac renter -v

Bugs Fixed

• Set 'Content-Disposition' header for archives.
• fixed bug in rotation of fingerprint buckets
• fix issue where priority tasks could wait for low priority tasks to complete
• Fix panic in backup code due to not using newJobGeneric
• Skynet filenames are now validated when uploading. Previously you could upload files called e.g. "../foo" which would be inaccessible.
• The Skykey encryption API docs were updated to fix some discrepancies. In particular, the skykeyid section was removed.
• The createskykey endpoint was fixed as it was not returning the full Skykey that was created.
• integrade download cooldown system into download jobs
• fix bug which could prevent downloads from making progress
• Fix panic in the wal of the siadir and siafile if a delete update was submitted as the last update in a set of updates.

Other

• Add EphemeralAccountExpiry and MaxEphemeralAccountBalance to the Host's ExternalSettings
• Add testing infrastructure to validate the output of siac commands.
• Add root siac Cobra command test with subtests.
• Optimise writes when we execute an MDM program on the host to lower overall (upload) bandwidth consumption.
• Change status returned when module is not loaded from 404 to 490
• Add siac renter workers ea command to siac
• Add siac renter workers pt command to siac
• Add siac renter workers rj command to siac
• Add siac renter workers hsj command to siac
• Add testing for blacklisting skylinks associated with siafile conversions
• Rename Gateway blacklist to blocklist
• Allow host netAddress and announcements with local network IP on dev builds.
• Add default timeouts to opening a stream on the mux
• Update to bolt version with upstream fixes. This enables builds with Go 1.14.

Jun 5, 2020:

v1.4.11

Bugs Fixed

• Fixed bug where a Sia dir could be created with the same path as an already existing Sia dir and no error was returned.
• Fixed bug that prevented downloading from old hosts

Other

• persist/log.go has been extracted and is now a simple wrapper around the new log repo.
• Use external changelog generator v1.0.1.

Jun 3, 2020:

v1.4.10

Bugs Fixed

• fixed issue where workers would freeze for a bit after a new block appeared

Other

• Add Skykey Name and ID to skykey GET responses

May 29, 2020:

v1.4.9

Key Updates

• Add FeeManager to siad to allow for applications to charge a fee
• Add start time for the API server for siad uptime
• Add new /consensus/subscribe/:id endpoint to allow subscribing to consensus change events
• Add /skykeys endpoint and siac skykey ls command
• Updated skykey encoding and format

Bugs Fixed

• fix call to expensive operation in tight loop
• fix an infinite loop which would block uploads from progressing

Other

• Optimize bandwidth consumption for RPC write calls
• Extend /daemon/alerts with criticalalerts, erroralerts and warningalerts fields along with alerts.
• Update skykey siac functions to accept httpClient and remove global httpClient reference from siac testing
• Skykeycmd test broken down to subtests.
• Create siac testing helpers.
• Add engineering guidelines to /doc
• Introduce PaymentProvider interface on the renter.
• Skynet persistence subsystems into shared system.
• Update Cobra from v0.0.5 to v1.0.0.

May 11, 2020:

v1.4.8

Key Updates

• Enable FundEphemeralAccountRPC on the host
• Enable UpdatePriceTableRPC on the host
• Add startheight and endheight flags for siac wallet transactions pagination
• Add progress bars to Skynet uploads. Those can be disabled by passing the --silent flag.
• Add the Execute Program RPC to the host
• Added Skykey API endpoints and siac commands.
• Add /skynet/portals API endpoints.
• Add MinBaseRPCPrice and MinSectorAccessPrice to siac host -v
• Add basePriceAdjustment to the host score to check for BaseRPCPrice and SectorAccessPrice price violations.
• Add support for unpinning directories from Skynet.
• Add support for unpinning multiple files in a single command.
• Change payment processing to always use ephemeral accounts, even for contract payments
• Increase renew alert severity in 2nd half of renew window
• Prioritize remote repairs
• Add SIAD_DATA_DIR environment variable which tells siad where to store the siad-specific data. This complements the SIA_DATA_DIR variable which tells siad where to store general Sia data, such as the API password, configuration, etc.
• Update the siac renter summaries to use the root flags for the API calls
• Add root flag to renter/rename so that all file in the filesystem can be renamed
• Allow for wallet/verifypassword endpoint to accept the primary seed as well as a password
• Add /renter/workers API endpoint to get the current status of the workers. This pulls it out of the log files as well.
• Add siac renter workers command to siac
• Add valid and missed proof outputs to StorageObligation for /host/contracts

Bugs Fixed

• Fix decode bug for the rpcResponse object
• Fix bug in rotation of fingerprint buckets
• fix hostdb log being incorrectly named
• Refactor the environment variables into the build package to address bug where siac and siad could be using different API Passwords.
• Fix bug in converting siafile to skyfile and enable testing.
• Fixed bug in bubble code that would overwrite the siadir metadata with old metadata
• Fixed the output of siac skynet ls not counting subdirectories.
• Fix a bug in parsePercentages and added randomized testing
• Fixed bug where backups where not being repaired
• The AggregateNumSubDirs count was fixed as it was always 0. This is a piece of metadata keeping track of the number of all subdirs of a directory, counted recursively.
• Address missed locations of API error returns for handling of Modules not running
• add missing local ranges to IsLocal function
• workers now more consistently use the most recent contract
• improved performance logging in repair.log, especially in debug mode
• general upload performance improvements (minor)
• Fixed bug in siac renter -v where the health summary wasn't considering OnDisk when deciding if the file was recoverable
• Fix panic condition in Renter's uploadheap due to change in chunk's stuck status
• renewed contracts must be marked as not good for upload and not good for renew

Other

• Add 'AccountFunding' to the Host's financial metrics
• Support multiple changelog items in one changelog file.
• Add updating changelog tail to changelog generator.
• Generate 2 patch level and 1 minor level upcoming changelog directories.
• Fixed checking number of contracts in testContractInterrupted test.
• Move generate-changelog.sh script to changelog directory.
• Generate changelog from any file extension (.md is not needed)
• Fix permission issues for Windows runner, do not perform linting during Windows tests.
• Move filenames to ignore in changelog generator to .changelogignore file
• Created Merge Request.md to document the merge request standards and process.
• Remove backslash check in SiaPath validation, add \ to list of accepted characters
• siac skynet upload with the --dry-run flag will now print more clear messages to emphasize that no files are actually uploaded.
• Move scanCheckInterval to be a build variable for the hostdb
• Skynet portals and blacklist persistence errors have been made more clear and now include the persist file locations.
• add some performance stats for upload and download speeds to /skynet/stats
• set the password and user agent automatically in client.New
• Publish test logs also for regular pipelines (not only for nightly pipelines).
• Setup Windows runner for nightly test executions.

Apr 2, 2020:

v1.4.7

Key Updates

• Split up contract files into a .header and .roots file. Causes contract insertion to be ACID and fixes a rare panic when loading the contractset.
• Add --dry-run parameter to Skynet upload
• Set ratio for MinBaseRPCPrice and MinSectorAccessPrice with MinDownloadBandwidthPrice

Bugs Fixed

• Don't delete hosts the renter has a contract with from hostdb
• Initiate a hostdb rescan on startup if a host the renter has a contract with isn't in the host tree
• Increase max host downtime in hostbd from 10 days to 20 days.
• Remove build.Critical and update to a metadata update

Other

• Add PaymentProcessor interface (host-side)
• Move golangci-lint to make lint and remove make lint-all.
• Add whitespace lint to catch extraneous whitespace and newlines.
• Expand SiaPath unit testing to address more edge cases.

Mar 25, 2020:

v1.4.6

Bugs Fixed

• Fix panic when metadata of skyfile upload exceeds modules.SectorSize
• Fix curl example for /skynet/skyfile/ post

Mar 24, 2020:

v1.4.5

Key Updates

• Alerts returned by /daemon/alerts route are sorted by severity
• Add --fee-included parameter to siac wallet send siacoins that allows sending an exact wallet balance with the fees included.
• Extend siac hostdb view to include all the fields returned from the API.
• siac renter delete now accepts a list of files.
• add pause and resume uploads to siac
• Extended siac renter to include number of passive and disabled contracts
• Add contract data to siac renter
• Add getters and setter to FileContract and FileContractRevision types to prevent index-out-of-bounds panics after a RenewAndClear.

Bugs Fixed

• Fixed file health output of siac renter -v not adding to 100% by adding parsePercentage function.
• Fix unlock of unlocked mutex panic in the download destination writer.
• Fix potential channel double closed panic in DownloadByRootProject
• Fix divide by zero panic in renterFileHealthSummary for siac renter -v
• Fix negative currency panic in siac renter contracts view

Other

• Add timeout parameter to Skylink pin route
• Also apply timeout when fetching the individual chunks
• Add SiaMux stream handler to the host
• Fix TestAccountExpiry NDF
• Add benchmark test for bubble metadata
• Add additional format instructions to the API docs and fix format errors
• Created Minor Merge Request template.
• Updated Resources.md with links to filled out README files
• Add version information to the stats endpoint
• Extract environment variables to constants and add to API docs.

Mar 17, 2020:

v1.4.4

Key Updates

• Add a delay when modifying large contracts on hosts to prevent hosts from becoming unresponsive due to massive disk i/o.
• Add --root parameter to siac renter delete that allows passing absolute instead of relative file paths.
• Add ability to blacklist skylinks by merkleroot.
• Uploading resumes more quickly after restart.
• Add HEAD request for skylink
• Add ability to pack many files into the same or adjacent sectors while producing unique skylinks for each file.
• Fix default expected upload/download values displaying 0 when setting an initial allowance.
• siac skynet upload now supports uploading directories. All files are uploaded individually and result in separate skylinks.
• No user-agent needed for Skylink downloads.
• Add go get command to make dependencies.
• Add flags for tag and targz for skyfile streaming.
• Add new endpoint /skynet/stats that provides statistical information about skynet, how many files were uploaded and the combined size of said files.
• The siac renter setallowance UX is considerably improved.
• Add XChaCha20 CipherKey.
• Add Skykey Manager.
• Add siac skynet unpin subcommand.
• Extend siac renter -v to show breakdown of file health.
• Add Skynet-Disable-Force header to allow disabling the force update feature on Skynet uploads
• Add bandwidth usage to siac gateway

Bugs Fixed

• Fixed bug in startup where an error being returned by the renter's blocking startup process was being missed
• Fix repair bug where unused hosts were not being properly updated for a siafile
• Fix threadgroup violation in the watchdog that allowed writing to the log file after a shutdown
• Fix bug where siac renter -v wasn't working due to the wrong flag being used.
• Fixed bug in siafile snapshot code where the hostKey() method was not used to safely acquire the host pubkey.
• Fixed siac skynet ls not working when files were passed as input. It is now able to access specific files in the Skynet folder.
• Fixed a deadlock when performing a Skynet download with no workers
• Fix a parsing bug for malformed skylinks
• fix siac update for new release verification
• Fix parameter delimiter for skylinks
• Fixed race condition in host's RPCLoopLock
• Fixed a bug which caused a call to build.Critical in the case that a contract in the renew set was marked !GoodForRenew while the contractor lock was not held

Other

• Split out renter siatests into 2 groups for faster pipelines.
• Add README to the siatest package
• Bump golangci-lint version to v1.23.8
• Add timeout parameter to Skylink route - Add go get command to make dependencies.
• Update repair loop to use uniqueRefreshPaths to reduce unnecessary bubble calls
• Add Skynet-Disable-Force header to allow disabling the force update feature on Skynet uploads
• Create generator for Changelog to improve changelog update process

Feb 2020:

v1.4.3

Key Updates

• Introduced Skynet with initial feature set for portals, web portals, skyfiles, skylinks, uploads, downloads, and pinning
• Add data-pieces and parity-pieces flags to siac renter upload
• Integrate SiaMux
• Initialize defaults for the host's ephemeral account settings
• Add SIA_DATA_DIR environment variable for setting the data directory for siad/siac
• Made build process deterministic. Moved related scripts into release-scripts
• Add directory support to Skylinks.
• Enabled Lockcheck code anaylzer
• Added Bandwidth monitoring to the host module

Bugs Fixed

• HostDB Data race fixed and documentation updated to explain the data race concern
• Name and Dir methods of the Siapath used the filepath package when they should have used the strings package to avoid OS path separator bugs
• Fixed panic where the Host's contractmanager AddSectorBatch allowed for writing to a file after the contractmanager had shutdown
• Fixed panic where the watchdog would try to write to the contractor's log after the contractor had shutdown

Other

• Upgrade host metadata to v1.4.3
• Removed stubs from testing

Jan 2020:

v1.4.2.1

Key Updates

• Wallet can generate an address before it finishes scanning the blockchain
• FUSE folders can now be mounted with 'AllowOther' as an option
• Added alerts for when contracts can't be renewed or refreshed
• Smarter fund allocation when initially forming contracts
• Decrease memory usage and cpu usage when uploading and downloading
• When repairing files from disk, an integrity check is performed to ensure that corrupted / altered data is not used to perform repairs

Bugs Fixed

• Repair operations would sometimes perform useless and redundant repairs
• Siafiles were not pruning hosts correctly
• Unable to upload a new file if 'force' is set and no file exists to delete
• Siac would not always delete a file or folder correctly
• Divide by zero error when setting the allowance with an empty period
• Host would sometimes deadlock upon shutdown due to thread group misuse
• Crash preventing host from starting up correctly after an unclean shutdown while resizing a storage folder

Dec 2019:

v1.4.2.0

Key Updates

• Allowance in Backups
• Wallet Password Reset
• Bad Contract Utility Add
• FUSE
• Renter Watchdog
• Contract Churn Limiter
• Serving Downloads from Disk
• Verify Wallet Password Endpoint
• Siafilesystem
• Sia node scanner
• Gateway blacklisting
• Contract Extortion Checker
• Instant Boot
• Alert System
• Remove siafile chunks from memory
• Additional price change protection for the Renter
• siac Alerts command
• Critical alerts displayed on every siac call
• Single File Get in siac
• Gateway bandwidth monitoring
• Ability to pause uploads/repairs

Bugs Fixed

• Missing return statements in API (http: superfluous response.WriteHeader call)
• Stuck Loop fixes (chunks not being added due to directory siapath never being set)
• Rapid Cycle repair loop on start up
• Wallet Init with force flag when no wallet exists previous would error

Other

• Module READMEs
• staticcheck and gosec added
• Security.md file created
• Community images added for Built On Sia
• JSON tag code analyzer
• ResponseWriter code analyzer
• boltdb added to gitlab.com/NebulousLabs

Sep 2019:

v1.4.1.2 (hotfix)

• Fix memory leak
• Add /tpool/transactions endpoint
• Second fix to transaction propagation bug

Aug 2019:

v1.4.1.1 (hotfix)

• Fix download corruption bug
• Fix transaction propagation bug

Jul 2019:

v1.4.1 (minor release)

• Support upload streaming
• Enable seed-based snapshot backups

Apr 2019:

v1.4.0 (minor release)

• Support "snapshot" backups
• Switch to new renter-host protocol
• Further scalability improvements

Oct 2018:

v1.3.7 (patch release)

• Adjust difficulty for ASIC hardfork

v1.3.6 (patch release)

• Enable ASIC hardfork

v1.3.5 (patch release)

• Add offline signing functionality
• Overhaul hostdb weighting
• Add siac utils

Sep 2018:

v1.3.4 (patch release)

• Fix contract spending metrics
• Add /renter/contract/cancel endpoint
• Move project to GitLab

May 2018:

v1.3.3 (patch release)

• Add Streaming API endpoints
• Faster contract formation
• Improved wallet scaling

March 2018:

v1.3.2 (patch release)

• Improve renter throughput and stability
• Reduce host I/O when idle
• Add /tpool/confirmed endpoint

December 2017:

v1.3.1 (patch release)

• Add new efficient, reliable contract format
• Faster and smoother file repairs
• Fix difficulty adjustment hardfork

July 2017:

v1.3.0 (minor release)

• Add remote file repair
• Add wallet 'lookahead'
• Introduce difficulty hardfork

May 2017:

v1.2.2 (patch release)

• Faster + smaller wallet database
• Gracefully handle missing storage folders

• 2500 lines of new testing + bug fixes

April 2017:

v1.2.1 (patch release)

• Faster host upgrading
• Fix wallet bugs
• Add siac command to cancel allowance

v1.2.0 (minor release)

• Host overhaul
• Wallet overhaul
• Tons of bug fixes and efficiency improvements

March 2017:

v1.1.2 (patch release)

• Add async download endpoint
• Fix host storage proof bug

February 2017:

v1.1.1 (patch release)

• Renter now performs much better at scale
• Myriad HostDB improvements
• Add siac command to support storage leaderboard

January 2017:

v1.1.0 (minor release)

• Greatly improved upload/download speeds
• Wallet now regularly "defragments"
• Better contract metrics

December 2016:

v1.0.4 (LTS release)

October 2016:

v1.0.3 (patch release)

• Greatly improved renter stability
• Smarter HostDB
• Numerous minor bug fixes

July 2016:

v1.0.1 (patch release)

• Restricted API address to localhost
• Fixed renter/host desynchronization
• Fixed host silently refusing new contracts

June 2016:

v1.0.0 (major release)

• Finalized API routes
• Add optional API authentication
• Improve automatic contract management

May 2016:

v0.6.0 (minor release)

• Switched to long-form renter contracts
• Added support for multiple hosting folders
• Hosts are now identified by their public key

January 2016:

v0.5.2 (patch release)

• Faster initial blockchain download
• Introduced headers-only broadcasting

v0.5.1 (patch release)

• Fixed bug severely impacting performance
• Restored (but deprecated) some siac commands
• Added modules flag, allowing modules to be disabled

v0.5.0 (minor release)

• Major API changes to most modules
• Automatic contract renewal
• Data on inactive hosts is reuploaded
• Support for folder structure
• Smarter host

October 2015:

v0.4.8 (patch release)

• Restored compatibility with v0.4.6

v0.4.7 (patch release)

• Dropped support for v0.3.3.x

v0.4.6 (patch release)

• Removed over-aggressive consistency check

v0.4.5 (patch release)

• Fixed last prominent bug in block database
• Closed some dangling resource handles

v0.4.4 (patch release)

• Uploading is much more reliable
• Price estimations are more accurate
• Bumped filesize limit to 20 GB

v0.4.3 (patch release)

• Block database is now faster and more stable
• Wallet no longer freezes when unlocked during IBD
• Optimized block encoding/decoding

September 2015:

v0.4.2 (patch release)

• HostDB is now smarter
• Tweaked renter contract creation

v0.4.1 (patch release)

• Added support for loading v0.3.3.x wallets
• Better pruning of dead nodes
• Improve database consistency

August 2015:

v0.4.0: Second stable currency release.

• Wallets are encrypted and generated from seed phrases
• Files are erasure-coded and transferred in parallel
• The blockchain is now fully on-disk
• Added UPnP support

June 2015:

v0.3.3.3 (patch release)

• Host announcements can be "forced"
• Wallets can be merged
• Unresponsive addresses are pruned from the node list

v0.3.3.2 (patch release)

• Siafunds can be loaded and sent
• Added block explorer
• Patched two critical security vulnerabilities

v0.3.3.1 (hotfix)

• Mining API sends headers instead of entire blocks
• Slashed default hosting price

v0.3.3: First stable currency release.

• Set release target
• Added progress bars to uploads
• Rigorous testing of consensus code

May 2015:

v0.3.2: Fourth open beta release.

• Switched encryption from block cipher to stream cipher
• Updates are now signed
• Added API calls to support external miners

v0.3.1: Third open beta release.

• Blocks are now stored on-disk in a database
• Files can be shared via .sia files or ASCII-encoded data
• RPCs are now multiplexed over one physical connection

March 2015:

v0.3.0: Second open beta release.

Jan 2015:

v0.2.0: First open beta release.

Dec 2014:

v0.1.0: Closed beta release.