Horizon v0.15.0

DB migrations add a new fields and indexes on history_trades table. This is a very large table in CATCHUP_COMPLETE deployments so migration may take a long time (depending on your DB hardware). Please test the migrations execution time on the copy of your production DB first.

Breaking 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. You have to reingest history to update offer IDs.

Bug fixes and improvements

This release contains several bug fixes and improvements:

• 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.
• Path finding bugs have been fixed and the algorithm has been improved. Check #719 for more information.
• Connections (including streams) are closed after timeout defined using --connection-timeout CLI param or CONNECTION_TIMEOUT environment variable. If Horizon is behind a load balancer with idle timeout set, it is recommended to set this to a value equal a few seconds less than idle timeout so streams can be properly closed by Horizon.
• Streams have been improved to check for updates every --sse-update-frequency CLI param or SSE_UPDATE_FREQUENCY environment variable seconds. If a new ledger has been closed in this period, new events will be sent to a stream. Previously streams checked for new events every 1 second, even when there were no new ledgers.
• Rate limiting algorithm has been changed to GCRA.
• 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.
• Rate limiting can be disabled completely by setting --per-hour-rate-limit=0 CLI param or PER_HOUR_RATE_LIMIT=0 environment variable.
• Account flags now display auth_immutable value.
• Logs can be sent to a file. Destination file can be set using an environment variable (LOG_FILE={file}) or CLI parameter (--log-file={file}).
• horizon db backfill command has been fixed.
• Fixed remoteAddrIP function to support IPv6.
• Fixed route field in the logs when the request is rate limited.

Friendbot v0.0.1

Initial friendbot release

Horizon v0.14.2

Bug fixes

• Fixed and improved txsub package (#695). This should resolve many issues connected to Timeout responses.
• Improve stream error reporting (#680).
• Checking ingest.Cursor errors in Session (#679).
• Added account ID validation in /account/{id} endpoints (#684).

Horizon v0.14.1

This release contains several bug fixes:

• Assets stats can cause high CPU usage on stellar-core DB. If this slows down the database it's now possible to turn off this feature by setting DISABLE_ASSET_STATS feature flag. This can be set as environment variable (DISABLE_ASSET_STATS=true) or CLI parameter (--disable-asset-stats=true).
• Sometimes /accounts/{id}/offers returns 500 Internal Server Error response when ledger data is not available yet (for new ledgers) or no longer available (CATCHUP_RECENT deployments). It's possible to set ALLOW_EMPTY_LEDGER_DATA_RESPONSES feature flag as environment variable (ALLOW_EMPTY_LEDGER_DATA_RESPONSES=true) or CLI parameter (--allow-empty-ledger-data-responses=true). With the flag set to true "Offers for Account" endpoint will return null in last_modified_time field when ledger data is not available, instead of 500 Internal Server Error error.

Bug fixes

• Feature flag to disable asset stats (#668).
• Feature flag to allow null ledger data in responses (#672).
• Fix empty memo field in JSON when memo_type is text (#635).
• Improved logging: some bad requests no longer generate ERROR level log entries (#654).
• /friendbot endpoint is available only when FriendbotURL is set in the config.

Archivist v0.2.0

• Fixed duplicated data when reading an archive file (#374).

Horizon v0.14.0

Breaking changes

• Offer resource last_modified field removed (see Bug Fixes section).
• Trade aggregations endpoint accepts only specific time ranges now (1/5/15 minutes, 1 hour, 1 day, 1 week).
• Horizon sends Cache-Control: no-cache, no-store, max-age=0 HTTP header for all responses.

Deprecations

• Account > Signers collection public_key field is deprecated, replaced by key.

Changes

• Protocol V10 features:
  • New bump_sequence operation (as in CAP-0001).
    • New bump_sequence operation.
    • New sequence_bumped effect.
    • Please check CAP-0001 for new error codes for transaction submission.
  • Offer liabilities (as in CAP-0003):
    • /accounts/{id} resources contain new fields: buying_liabilities and selling_liabilities for each entry in balances.
    • Please check CAP-0003 for new error codes for transaction submission.
• Added source_amount field to path_payment operations.
• Added account_credited and account_debited effects for path_payment operations.
• Friendbot link in Root endpoint is empty if not set in configuration.
• Improved ingest package logging.
• Improved HTTP logging (forwarded_ip, route fields, duration is always in seconds).
• LOGGLY_HOST env variable has been replaced with LOGGLY_TAG and is adding a tag to every log event.
• Dropped support for Go 1.8.

Bug fixes

• New fields in Offer resource: last_modified_ledger and last_modified_time, replace buggy last_modified (#478).
• Fixed pagination in Trades for account endpoint (#486).
• Fixed a synchronization issue in ingest package (#603).
• Fixed Order Book resource links in Root endpoint.
• Fixed streaming in Offers for Account endpoint.

Horizon v0.13.3

Bug fixes

• Fixed large amounts rendering in /assets.

Horizon v0.14.0 rc3

Release Candidate. Do not use in production.

Horizon v0.13.2

Bug fixes

• Fixed a bug in amount and price packages triggering long calculations.

Horizon v0.14.0 rc2

Release Candidate. Do not use in production.