In "Transaction", result_meta_xdr field is now nullable, and will be null when Horizon has SKIP_TXMETA=true set, otherwise if Horizon is configured with SKIP_TXMETA=false which is default, then result_meta_xdr will be the same value of base64 encoded xdr.
Operations responses may include a transaction field which represents the transaction that created the operation.

0.15.0

SDKs with full support

Changes

Assets stats are disabled by default. This can be changed using an environment variable (ENABLE_ASSET_STATS=true) or CLI parameter (--enable-asset-stats=true). Please note that it has a negative impact on a DB and ingestion time.
In "Offers for Account", last_modified_time field endpoint can be null when ledger data is not available (has not been ingested yet).
"Trades for Offer" endpoint will query for trades that match the given offer on either side of trades, rather than just the "sell" offer. Offer IDs are now synthetic.
New /operation_fee_stats endpoint includes fee stats for the last 5 ledgers.
"Trades" endpoint can now be streamed.
In "Trade Aggregations" endpoint, offset parameter has been added.
Account flags now display auth_immutable value.
Rate limiting in streams has been changed to be more fair. Now 1 credit has to be paid every time there's a new ledger instead of per request.

Resource	Changes	Go SDK ¹	JS SDK	Java SDK
`GET /assets`	Disabled by default.	+	0.10.2	0.4.0
`GET /accounts/{account_id}/offers`	`last_modified_time` field can be `null`	-	0.10.2	0.4.0
`GET /offers/{offer_id}/trades`	Query fields and syntetic IDs	-	0.10.2	0.4.0
`GET /trades` SSE	Can be streamed	-	-	0.4.0
`GET /operation_fee_stats`	New endpoint	-	-	0.4.0
`GET /trade_aggregations`	New `offset` parameter	-	-	0.4.0
`GET /accounts/{account_id}`	Displaying `auth_immutable` flag	-	0.10.2	0.4.0

0.14.0

SDKs with full support

Changes

New bump_sequence operation.
New sequence_bumped effect.
New fields in Account > Balances collection: buying_liabilities and selling_liabilities.
Offer resource last_modified field removed, replaced by last_modified_ledger and last_modified_time.
Trade aggregations endpoint accepts only specific time ranges now (1/5/15 minutes, 1 hour, 1 day, 1 week).
Horizon now sends Cache-Control: no-cache, no-store, max-age=0 HTTP header for all responses.

Resource	Changes	Go SDK ¹	JS SDK	Java SDK
`GET /accounts/{account_id}`	Liabilities fields in Balances collection.	+	0.10.2	0.3.1
`GET /accounts/{account_id}/effects`	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /accounts/{account_id}/effects` SSE	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /accounts/{account_id}/offers`	`last_modified` field removed	-	0.10.2	0.3.1
`GET /accounts/{account_id}/operations`	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /accounts/{account_id}/operations` SSE	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /effects`	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /effects` SSE	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /ledgers/{ledger_id}/operations`	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /ledgers/{ledger_id}/operations` SSE	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /ledgers/{ledger_id}/effects`	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /ledgers/{ledger_id}/effects` SSE	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /operations`	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /operations` SSE	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /operations/{op_id}`	`bump_sequence` operation	+	0.10.2	0.3.1
`GET /trades_aggregations`	Only specific time ranges allowed	+	0.10.2	0.3.1
`GET /transactions/{tx_id}/operations`	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /transactions/{tx_id}/operations` SSE	`bump_sequence` operation	-	0.10.2	0.3.1
`GET /transactions/{tx_id}/effects`	`sequence_bumped` effect	-	0.10.2	0.3.1
`GET /transactions/{tx_id}/effects` SSE	`sequence_bumped` effect	-	0.10.2	0.3.1

0.13.0

SDKs with full support

Changes

amount field in /assets is now a String (to support Stellar amounts larger than int64).
Effect resource contains a new created_at field.

Resource	Changes	Go SDK ¹	JS SDK	Java SDK
`GET /assets`	`amount` can be larger than `MAX_INT64`/10^7	+	0.8.2 ²	0.2.0
`GET /ledgers/{ledger_id}/effects`	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /ledgers/{ledger_id}/effects` SSE	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /accounts/{account_id}/effects`	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /accounts/{account_id}/effects` SSE	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /transactions/{tx_id}/effects`	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /transactions/{tx_id}/effects` SSE	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /operations/{op_id}/effects`	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /operations/{op_id}/effects` SSE	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /effects`	`created_at` field added	+	0.8.2 ²	0.2.1
`GET /effects` SSE	`created_at` field added	+	0.8.2 ²	0.2.1

0.12.3

SDKs with full support

Changes

Resource	Go SDK ¹	JS SDK	Java SDK
`GET /`	+ (some `_links` missing)	-	0.2.1
`GET /metrics`	-	-	-
`GET /ledgers`	-	0.8.2	0.2.0
`GET /ledgers` SSE	+	0.8.2	0.2.0
`GET /ledgers/{ledger_id}`	-	0.8.2	0.2.0
`GET /ledgers/{ledger_id}/transactions`	-	0.8.2	0.2.0
`GET /ledgers/{ledger_id}/transactions` SSE	-	0.8.2	0.2.0
`GET /ledgers/{ledger_id}/operations`	-	0.8.2	0.2.0
`GET /ledgers/{ledger_id}/operations` SSE	-	0.8.2	0.2.1
`GET /ledgers/{ledger_id}/payments`	-	0.8.2	0.2.0
`GET /ledgers/{ledger_id}/payments` SSE	-	0.8.2	0.2.0
`GET /ledgers/{ledger_id}/effects`	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /ledgers/{ledger_id}/effects` SSE	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /accounts/{account_id}`	+	0.8.2	0.2.0
`GET /accounts/{account_id}/transactions`	-	0.8.2	0.2.0
`GET /accounts/{account_id}/transactions` SSE	-	0.8.2	0.2.0
`GET /accounts/{account_id}/operations`	-	0.8.2	0.2.0
`GET /accounts/{account_id}/operations` SSE	-	0.8.2	0.2.1
`GET /accounts/{account_id}/payments`	-	0.8.2	0.2.0
`GET /accounts/{account_id}/payments` SSE	-	0.8.2	0.2.0
`GET /accounts/{account_id}/effects`	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /accounts/{account_id}/effects` SSE	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /accounts/{account_id}/offers`	+	0.8.2	0.2.0
`GET /accounts/{account_id}/trades`	-	0.8.2	0.2.1
`GET /accounts/{account_id}/data/{key}`	-	-	-
`POST /transactions`	-	0.8.2	0.2.0
`GET /transactions`	+	0.8.2	0.2.0
`GET /transactions` SSE	+	0.8.2	0.2.0
`GET /transactions/{tx_id}`	+	0.8.2	0.2.0
`GET /transactions/{tx_id}/operations`	-	0.8.2	0.2.0
`GET /transactions/{tx_id}/operations` SSE	-	0.8.2	0.2.1
`GET /transactions/{tx_id}/payments`	-	0.8.2	0.2.0
`GET /transactions/{tx_id}/payments` SSE	-	0.8.2	0.2.0
`GET /transactions/{tx_id}/effects`	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /transactions/{tx_id}/effects` SSE	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /operations`	-	0.8.2	0.2.0
`GET /operations` SSE	-	0.8.2	0.2.1
`GET /operations/{op_id}`	-	0.8.2	0.2.0
`GET /operations/{op_id}/effects`	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /operations/{op_id}/effects` SSE	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /payments`	-	0.8.2	0.2.0
`GET /payments` SSE	+	0.8.2	0.2.0
`GET /effects`	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /effects` SSE	-	0.8.2	0.2.0 (no support for data, inflation types)
`GET /trades`	+	0.8.2	0.2.0 (no `price` field)
`GET /trades_aggregations`	+	0.8.2	0.2.0
`GET /offers/{offer_id}/trades`	-	0.8.2	0.2.1
`GET /order_book`	+	0.8.2	0.2.0
`GET /order_book` SSE	-	0.8.2	0.2.1
`GET /paths`	-	0.8.2	0.2.0
`GET /assets`	-	0.8.2	0.2.0

¹ We don't do proper versioning for GO SDK yet. + means implemented in master branch.

² Native JSON support in JS, no changes needed.

# Packages

base

effects

operations

# Functions

KeyTypeFromAddress

KeyTypeFromAddress converts the version byte of the provided strkey encoded value (for example an account id or a signer key) and returns the appropriate horizon-specific type name.

MustKeyTypeFromAddress

MustKeyTypeFromAddress is the panicking variant of KeyTypeFromAddress.

# Variables

KeyTypeNames

KeyTypeNames maps from strkey version bytes into json string values to use in horizon responses.

# Structs

Account

Account is the summary of an account.

AccountData

AccountData represents a single data object stored on by an account.

AccountFilterConfig

AccountFlags

AccountFlags represents the state of an account's flags.

AccountsPage

AccountsPage returns a list of account records.

AccountThresholds

AccountThresholds represents an accounts "thresholds", the numerical values needed to satisfy the authorization of a given operation.

AssetFilterConfig

AssetsPage

AssetsPage contains page of assets returned by Horizon.

AssetStat

AssetStat represents the statistics for a single Asset.

AssetStatAccounts

AssetStatAccounts represents the summarized acount numbers for a single Asset.

AssetStatBalances

AssetStatBalances represents the summarized balances for a single Asset.

AsyncTransactionSubmissionResponse

AsyncTransactionSubmissionResponse represents the response returned by Horizon when using the transaction-async endpoint.

Balance

Balance represents an account's holdings for either a single currency type or shares in a liquidity pool.

ClaimableBalance

ClaimableBalance represents a claimable balance.

ClaimableBalanceFlags

ClaimableBalanceFlags represents the state of a claimable balance's flags.

ClaimableBalances

Claimant

Claimant represents a claimable balance claimant.

FeeBumpTransaction

FeeBumpTransaction contains information about a fee bump transaction.

FeeDistribution

FeeStats

FeeStats represents a response of fees from horizon To do: implement fee suggestions if agreement is reached in https://github.com/stellar/go/issues/926.

InnerTransaction

InnerTransaction contains information about the inner transaction contained within a fee bump transaction.

Ledger

Ledger represents a single closed ledger.

LedgersPage

LedgersPage contains page of ledger information returned by Horizon.

LiquidityPool

LiquidityPool represents a liquidity pool.

LiquidityPoolReserve

LiquidityPoolReserve represents a liquidity pool asset reserve.

LiquidityPoolsPage

LiquidityPoolsPage returns a list of liquidity pool records.