horizonclient & txnbuild v8.0.0-beta.0

This pre-release adds support for Protocol 18.

horizonclient

• The restriction that Fund can only be called on the DefaultTestNetClient has been removed. Any horizonclient.Client may now call Fund. Horizon instances not supporting funding will error with a resource not found error.
• Change AccountRequest to accept Sponsor and LiquidityPool filters
• Change EffectRequest, TransactionRequest, and OperationRequest to accept a ForLiquidityPool filter
• Change TradeRequest to accept both a ForLiquidityPool filter or a TradeType filter
• Add LiquidityPoolsRequest for getting details about liquidity pools, with an optional Reserves field to filter by pools' reserve asset(s).
• Add LiquidityPoolRequest for getting details about a specific liquidity pool via the LiquidityPoolID filter.

txnbuild

New features

• GenericTransaction, Transaction, and FeeBumpTransaction now implement
  encoding.TextMarshaler and encoding.TextUnmarshaler.
• New asset structures that conform to the new ChangeTrust and New assets:
• Support for the core liquidity pool XDR types: LiquidityPoolId, LiquidityPoolParameters, LiquidityPoolDeposit, and LiquidityPoolWithdraw.
• Support for the new asset structures: ChangeTrustAsset and TrustLineAsset.

Changes

• There's now a 5-minute grace period to transaction.ReadChallengeTx's minimum time bound constraint (#3824).
• Assets can now be liquidity pool shares (AssetTypePoolShare).
• All asset objects can now be converted to the new ChangeTrustAsset and TrustLineAsset objects.
• Assets can now be compared in accordance with the protocol, see their respective LessThan() implementations.

Breaking changes

• ChangeTrust requires a ChangeTrustAsset.
• RevokeSponsorship requires a TrustLineAsset when revoking trustlines.
• RemoveTrustlineOp helper now requires a ChangeTrustAsset
• validate*Asset helpers now require more-specific asset types.

Horizon v2.8.3

Upgrading to this version from <= v2.8.0 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

DB State Migration

• This release comes with a small DB migration. It should not take more than a couple minutes.

Scheduled Changes

In the 2.9.0 Horizon release, the --ingest flag will be set to true by default.

Changes

• Fix ingestion of fee bump transactions which have muxed source accounts (3948).
• Add an index on trade aggregations, to improve ingestion performance (3947).

Horizon v2.8.2

Upgrading to this version from <= v2.8.0 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

In the 2.9.0 Horizon release, the --ingest flag will be set to true by default.

• Improve performance of OffersProcessor. This should speed up ingestion of latest Stellar Public Network activity by up to 30%. Please note that this change does not improve reingestion speed because ledger entries are not processed during reingestion. (3917)

Horizon v2.8.1

Upgrading to this version from <= v2.8.0 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

In the 2.9.0 Horizon release, the --ingest flag will be set to true by default.

• Fix bug in asset balance classification where clawback is enabled. (3847)

Horizon v2.8.0

Upgrading to this version from <= v2.1.1 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

In the 2.9.0 Horizon release, the --ingest flag will be set to true by default.

• Limit reap to 100k ledgers/second, to prevent excess CPU usage (3823).
• Improve performance of path finding endpoints (3818).

Horizon v2.7.0

Upgrading to this version from <= v2.1.1 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

In the upcoming 2.9.0 Horizon release, the --ingest flag will be set to true by default. Please update your deployment scripts before this.

• If --captive-core-config-path is not set, the config file is generated based on network passhprase. (3783)
• Fix bug in horizon reap system (used by horizon db reap command and when horizon is configured with --history-retention-count) which could lead to partial deletions. (3754)
• Log debug messages from captive core at the appropriate log level. (3746)
• Add a feature flag --captive-core-reuse-storage-path/CAPTIVE_CORE_REUSE_STORAGE_PATH that will reuse Captive Core's storage path for bucket files when applicable for better performance. (3750)

Horizon v2.6.1

Upgrading to this version from <= v2.1.1 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

• Fix bug introduced in v2.6.0 (#3737), preventing usage of horizon db migrate up/down/redo commands. (#3762)

Horizon v2.6.0

Upgrading to this version from <= v2.1.1 will trigger a state rebuild. During this process (which will take at least 10 minutes), Horizon will not ingest new ledgers.

• Precompute trade aggregations during ingestion to improve performance. Will rebuild the aggregations as part of the database migrations. (3641 & 3760).
• Require COUNT param when running horizon db migrate down COUNT to prevent accidentally running all downwards migrations. Add horizon db migrate status command. (#3737)
• Fix a bug in fee_account_muxed and fee_account_muxed_id fields (the fields were incorrectly populated with the source account details). (3735)
• Validate ledger range when calling horizon db reingest range so that we respond with an error when attempting to ingest ledgers which are not available in the history archives. (3738)
• Improve performance of transaction submission. (3563)

horizonclient v7.1.1 & txnbuild v7.1.1

horizonclient

• Added transaction and operation result codes to the horizonclient.Error string for easy glancing at string only errors for underlying cause.
• Fix bug in the transaction submission where requests with large transaction payloads fail with an HTTP 414 URI Too Long error (#3643).
• Fix a data race in Client.fixHorizonURL(#3690).
• Fix bug which occurs when parsing operations involving muxed accounts (#3722).

txnbuild

Bug Fixes

• Claimable balance IDs are now precomputed correctly (Transaction.ClaimableBalanceID(int)) even when the transaction's source account is a fully-muxed account (#3678).
• Fix muxed account address parsing for account merge operation (#3722).

Horizon v2.5.2

Upgrading to this version from <= v2.1.1 will trigger a state rebuild. During this process (which can take up to 20 minutes), Horizon will not ingest new ledgers.

• Fix a bug in the method unmarshaling payment operation details. (#3722)