BlockScout v9.0.0

[vbaranov]

🚨 API v2 – Breaking Changes in Release 9.0.0

The 9.0.0 release of /api/v2 includes breaking changes aimed at enforcing consistency across the API. This includes structural changes, deprecated field removals, and naming standardizations that were previously announced in the v8 release.

🩺 /api/v2/health Endpoint Update

• Removed: latest_block from the root of the response.
• Replacement: Use blocks.latest_block instead.

📛 Deprecated Fields Removed (As Announced in v8)

In line with the API v2 naming policy, the following legacy properties have been removed. Please ensure you're using their updated equivalents:

Full API response properties renaming list

❌ Removed	✅ Use Instead
address (hex string)	address_hash
transaction_count	transactions_count
holders	holders_count
holder_count	holders_count
validators_counter	validators_count
new_validators_counter_24h	new_validators_count_24h
active_validators_counter	active_validators_count
withdrawal_sum	withdrawals_sum
withdrawal_count	withdrawals_count
origination_address	origination_address_hash
outbox_address	outbox_address_hash
caller	caller_address_hash
destination	destination_address_hash
start_block	start_block_number
end_block	end_block_number
before_acc	before_acc_hash
after_acc	after_acc_hash
associated_l1_transaction	associated_l1_transaction_hash
l1_block_height	l1_block_number
blob_transaction_count	blob_transactions_count
contract_address	contract_address_hash
internal_id	number
l2_block_start	l2_start_block_number
l2_block_end	l2_end_block_number
slashing_status_is_slashed	(use structured field)
slashing_status_by_block	slashing.status_by_block
slashing_status_multiplier	slashing.status_multiplier
l1_transaction_count	l1_transactions_count
l2_transaction_count	l2_transactions_count

🧠 Smart Contract Object Changes

✅ Added

• creation_status field added to the address object in responses.
  Possible values: selfdestructed, failed, success

🔁 Renamed

• Field status in the smart_contract object → renamed to creation_status

❌ Removed

• Field is_self_destructed removed from the endpoint:
  /api/v2/smart-contracts/:address_hash

⚠️ Action Required

These changes are not backward-compatible. If you're consuming these endpoints, please update your integrations immediately to avoid errors or data inconsistencies.

💡 New environment variables

New environment variables list

Variable	Description	Parameters
INDEXER_DB_EVENT_NOTIFICATIONS_CLEANUP_ENABLED	If true, Indexer.Utils.EventNotificationsCleaner process starts. Implemented in #12738	Version: v9.0.0+ Default: true Applications: Indexer
INDEXER_DB_EVENT_NOTIFICATIONS_CLEANUP_INTERVAL	Interval between DB event notifications cleanup. Time format. Implemented in #12738	Version: v9.0.0+ Default: 2m Applications: Indexer
INDEXER_DB_EVENT_NOTIFICATIONS_CLEANUP_MAX_AGE	Max age of DB event notifications before they are cleaned up. Time format. Implemented in #12738	Version: v9.0.0+ Default: 5m Applications: Indexer
INDEXER_SIGNED_AUTHORIZATION_STATUS_BATCH_SIZE	Batch size (number of blocks) for EIP7702 authorizations status fetcher. Implemented in #12451.	Version: v9.0.0+ Default: 10 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_BATCH_SIZE	Number of blocks to reindex in the batch. Implemented in #12559.	Version: v9.0.0+ Default: 10 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_CONCURRENCY	Number of parallel reindexing block batches processing. Implemented in #12559.	Version: v9.0.0+ Default: 1 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_TIMEOUT	Timeout between reindexing block batches processing. Implemented in #12559.	Version: v9.0.0+ Default: 0 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_ENABLED	Enable reindex blocks with missing transactions migration. Implemented in #12559.	Version: v9.0.0+ Default: false Applications: Indexer
MIGRATION_RESTORE_OMITTED_WETH_TOKEN_TRANSFERS_BATCH_SIZE	Number of logs to process in the batch. Implemented in #10466	Version: v6.8.0+ Default: 50 Applications: API, Indexer
MIGRATION_MERGE_ADJACENT_MISSING_BLOCK_RANGES_BATCH_SIZE	Specifies the missing block range batch size selected for the merge migration. Implemented in #12778.	Version: v9.0.0+ Default: 100 Applications: Indexer
API_RATE_LIMIT_CONFIG_URL	URL to fetch API rate limit configuration from external source. Implemented in #12386	Version: v9.0.0+ Default: (empty) Applications: API
API_RATE_LIMIT_BY_KEY_TIME_INTERVAL	Time interval for API rate limit by key. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
API_RATE_LIMIT_BY_WHITELISTED_IP_TIME_INTERVAL	Time interval for API rate limit by whitelisted IP. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
API_RATE_LIMIT_UI_V2_WITH_TOKEN_TIME_INTERVAL	Time interval for API rate limit for UI v2 with token. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
API_RATE_LIMIT_BY_ACCOUNT_API_KEY_TIME_INTERVAL	Time interval for API rate limit by account API key. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_FETCHER	If true, multichain DB main (blocks, transactions, addresses) export fetcher doesn't run. Implemented in #12377.	Version: v9.0.0+ Default: false Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_BATCH_SIZE	Batch size for multichain DB main (blocks, transactions, addresses) export fetcher. Implemented in #12377.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_CONCURRENCY	Concurrency for multichain DB main (blocks, transactions, addresses) export fetcher. Implemented in #12377.	Version: v9.0.0+ Default: 10 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_ENQUEUE_BUSY_WAITING_TIMEOUT	Timeout before new attempt to append item to multichain DB main (blocks, transactions, addresses) export queue if it's full. Time format. Implemented in #12377.	Version: v9.0.0+ Default: 1s Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_MAX_QUEUE_SIZE	Maximum size of multichain DB main (blocks, transactions, addresses) export queue. Implemented in #12377.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_FETCHER	If true, multichain DB balances export fetcher doesn't run. Implemented in #12580.	Version: v9.0.0+ Default: false Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_BATCH_SIZE	Batch size for multichain DB balances export fetcher. Implemented in #12580.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_CONCURRENCY	Concurrency for multichain DB balances export fetcher. Implemented in #12580.	Version: v9.0.0+ Default: 10 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_ENQUEUE_BUSY_WAITING_TIMEOUT	Timeout before new attempt to append item to multichain DB balances export queue if it's full. Time format. Implemented in #12580.	Version: v9.0.0+ Default: 1s Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_MAX_QUEUE_SIZE	Maximum size of multichain DB balances export queue. Implemented in #12580.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_POLYGON_ZKEVM_BATCHES_IGNORE	Comma-separated list of batch numbers that should be ignored by the fetcher. Implemented in #12387.	Version: v9.0.0+ Default: (empty) Applications: Indexer
INDEXER_OPTIMISM_MULTICHAIN_BATCH_SIZE	Max number of items sent to the Multichain service in one batch. Implemented in #12387.	Version: v9.0.0+ Default: 100 Applications: Indexer
CELO_UNRELEASED_TREASURY_CONTRACT	The address[^1] of the CeloUnreleasedTreasury core contract. Implemented in #12373.	Version: v9.0.0+ Default: (empty) Applications: Indexer
CELO_VALIDATORS_CONTRACT	The address[^1] of the Validators core contract. Implemented in #12373.	Version: v9.0.0+ Default: (empty) Applications: Indexer
CELO_EPOCH_MANAGER_CONTRACT	The address[^1] of the EpochManager core contract. Implemented in #12373.	Version: v9.0.0+ Default: (empty) Applications: Indexer

---

⛔ Deprecated environment variables

Deprecated environment variables list

Variable	Required	Description	Default	Version	Need recompile	Deprecated in Version
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_FETCHER		If true, retry multichain search export fetcher doesn't run. Implemented in #12377. Replaced with INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_FETCHER.	false	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_BATCH_SIZE		Batch size for retry multichain search export fetcher. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_BATCH_SIZE.	10	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_CONCURRENCY		Concurrency for retry multichain search export fetcher. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_CONCURRENCY.	10	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_ENQUEUE_BUSY_WAITING_TIMEOUT		Timeout before new attempt to append item to retry multichain search export queue if it's full. Time format. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_ENQUEUE_BUSY_WAITING_TIMEOUT.	1s	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_MAX_QUEUE_SIZE		Maximum size of retry multichain search export queue. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_MAX_QUEUE_SIZE.	1000	v8.1.0+		v9.0.0
API_RATE_LIMIT_TIME_INTERVAL		Time interval of rate limit. Implemented in #7148. Replaced with API_RATE_LIMIT_BY_KEY_TIME_INTERVAL, API_RATE_LIMIT_BY_WHITELISTED_IP_TIME_INTERVAL, API_RATE_LIMIT_UI_V2_WITH_TOKEN_TIME_INTERVAL, API_RATE_LIMIT_BY_ACCOUNT_API_KEY_TIME_INTERVAL, API_RATE_LIMIT_BY_IP_TIME_INTERVAL	1s	v5.1.3+		v9.0.0

---

🚀 Features

• Export token info to Multichain service (#12867)
• Export balances to Multichain DB(#12726)
• Add eip7702 authorization status fetcher (#12451)
• Add token1155tx token404tx api v1 endpoints (#12720)
• Async multichain data export (#12490)
• Rate limits refactoring (#12386)
• Integrate Open API Spex lib (#11886)
• Update CodeQL action to v3 (#12697) (#12703)
• Support merged tenants (#12109)
• Support ethereum pre-deploy contracts (#12579)
• Add creation_status field to address response (#12660)
• Decode OP interop message payload, store cross-chain transfer data, display message page, send messages to Multichain (#12387)
• Celo l2 epochs (#12373)
• Add /api/v2/config/celo convenience endpoint (#12238)

🐛 Bug Fixes

• Ignore rate limit for api/v2/import/token-info and api/v2/import/smart-contracts/:param (#12917)
• Mitigate deadlocks while exporting balances and the main queue to the Multichain DB (#12898, #12928)
• Balances export queue: replace replace_all with replace only value and updated_at (#12892)
• Fix naming for apikey param in OpenAPI spec (#12891)
• Don't send coin balances with zero delta via ws (#12890)
• Balances export queue to multichain replace do_nothing with replace_all on insertion to the queue (#12888)
• Allow using temporary token for api/account/v2 by default (#12869)
• Fix increment of retries_number in exporting data to Multichain DB (#12847)
• Fix various errors on export of balances to Multichain DB (#12837)
• Reject empty token_id and value in export of token balances to the Multichain DB (#12829)
• Fix multichain export queues processing (#12822)
• Remove token_id parameter from coin balance payload to Multichain service API endpoint (#12817)
• Sanitize empty block_ranges payload before sending HTTP request to Multichain service(#12816)
• Disable Indexer.Fetcher.Optimism.Interop.MultichainExport for non-OP chains (#12814)
• Fix flaky test for exporting balances to Multichain DB (#12813)
• Filter out creation internal transaction with index == 0 (#12777)
• Filter out scilla transactions in internal transactions fetcher (#12793)
• Change default ordering in /api/v2/smart-contracts (#12767)
• Filter scilla transactions by status (#12756)
• Fix timeout on cache update (#12773)
• Error on too big block numbers in APIv1 txlist method (#12727)
• Fix CSV export tests (#12744)
• Fix race condition for EventNotification (#12738)
• Multichain retry hex decoding (#12742)
• Internal transactions balance extraction (#12654)
• Multichain search export: retry only on failed chunks (#12459)
• Display correct OP Deposit origin address (#12672)
• Store blocks_validated in DB for Stability Validators (#12540)
• MarketHistory on conflict clause (#12541)
• Flaky 404 in /api/v2/internal-transactions (#12701)
• CryptoRank integration (#12523)
• Fix timeout on fetching address internal transactions (#12570)
• Coin balance history with internal tx changes (#12631)
• Update all block fields on conflict (#12418)
• Fix pending transactions sanitizer (#12559)
• Don't send logs without topic to sig provider (#12620)
• Add missing fields to Celo Epochs-related endpoints (#12589)
• Correctly use Geth importer for Besu genesis file. (#12466) (#12686)
• Ignore unknown type txs in gas price oracle (#12613)
• Resolve timeouts on Celo epoch reward contract reads (#12229)
• Prevent constant refetching of celo epoch blocks (#12498)
• Fix typo in ondemand token balance request (#12495)
• Fix for add_0x_prefix function (#12514)

⚡ Performance

• Api v1 txlsit& txlistinternal endpoints (#12774)
• Optimize Explorer.Chain.Cache.Blocks (#12402)

⚙️ Miscellaneous Tasks

• Remove obsolete API response props (#12931)
• Balances Multichain export: Refactor rows acquisition for deletion query (#12839)
• Change name of Swagger generation workflow (#12840)
• migrate Auth0 to mint as well (#12807)
• Migrate from HTTPoison to Tesla.Mint (#12699)
• Merge adjacent missing block ranges (#12778)
• Optimize missing block ranges operations (#12705)
• Hold parity with Etherscan APIv1 for getcontractcreation and getblocknobytime endpoints (#12721)
• Allow resending reindexed OP interop messages to Multichain service (#12626)
• Duplicate block countdown endpoint in API v2 (#12704)
• Revise Explorer.Helper.add_0x_prefix usage (#12543)
• New tac microservice endpoint for search (#12448)
• Add filter for value > 0 to txlistinternal (#12679)
• Optimize realtime events notifier (#12494)
• Drop address_coin_balances value_fetched_at index (#12598)
• Update deprecated address to address_hash in tx summary response (#12617)
• Remove redundant word in comment (#12603)
• Move background migrations under indexer mode (#12480)
• Support multiple interop messages view on transaction page (#12455)
• Remove is_self_destructed field in /api/v2/smart-contracts/{address_hash} response (#12239)
• Set home directory for blockscout user (#12337)

---

This discussion was created from the release BlockScout v9.0.0.

[StaraBroda]

🚨 API v2 – Breaking Changes in Release 9.0.0

The 9.0.0 release of /api/v2 includes breaking changes aimed at enforcing consistency across the API. This includes structural changes, deprecated field removals, and naming standardizations that were previously announced in the v8 release.

🩺 /api/v2/health Endpoint Update

• Removed: latest_block from the root of the response.
• Replacement: Use blocks.latest_block instead.

📛 Deprecated Fields Removed (As Announced in v8)

In line with the API v2 naming policy, the following legacy properties have been removed. Please ensure you're using their updated equivalents:

Full API response properties renaming list

❌ Removed	✅ Use Instead
address (hex string)	address_hash
transaction_count	transactions_count
holders	holders_count
holder_count	holders_count
validators_counter	validators_count
new_validators_counter_24h	new_validators_count_24h
active_validators_counter	active_validators_count
withdrawal_sum	withdrawals_sum
withdrawal_count	withdrawals_count
origination_address	origination_address_hash
outbox_address	outbox_address_hash
caller	caller_address_hash
destination	destination_address_hash
start_block	start_block_number
end_block	end_block_number
before_acc	before_acc_hash
after_acc	after_acc_hash
associated_l1_transaction	associated_l1_transaction_hash
l1_block_height	l1_block_number
blob_transaction_count	blob_transactions_count
contract_address	contract_address_hash
internal_id	number
l2_block_start	l2_start_block_number
l2_block_end	l2_end_block_number
slashing_status_is_slashed	(use structured field)
slashing_status_by_block	slashing.status_by_block
slashing_status_multiplier	slashing.status_multiplier
l1_transaction_count	l1_transactions_count
l2_transaction_count	l2_transactions_count

🧠 Smart Contract Object Changes

✅ Added

• creation_status field added to the address object in responses.
  Possible values: selfdestructed, failed, success

🔁 Renamed

• Field status in the smart_contract object → renamed to creation_status

❌ Removed

• Field is_self_destructed removed from the endpoint:
  /api/v2/smart-contracts/:address_hash

⚠️ Action Required

These changes are not backward-compatible. If you're consuming these endpoints, please update your integrations immediately to avoid errors or data inconsistencies.

💡 New environment variables

New environment variables list

Variable	Description	Parameters
INDEXER_DB_EVENT_NOTIFICATIONS_CLEANUP_ENABLED	If true, Indexer.Utils.EventNotificationsCleaner process starts. Implemented in #12738	Version: v9.0.0+ Default: true Applications: Indexer
INDEXER_DB_EVENT_NOTIFICATIONS_CLEANUP_INTERVAL	Interval between DB event notifications cleanup. Time format. Implemented in #12738	Version: v9.0.0+ Default: 2m Applications: Indexer
INDEXER_DB_EVENT_NOTIFICATIONS_CLEANUP_MAX_AGE	Max age of DB event notifications before they are cleaned up. Time format. Implemented in #12738	Version: v9.0.0+ Default: 5m Applications: Indexer
INDEXER_SIGNED_AUTHORIZATION_STATUS_BATCH_SIZE	Batch size (number of blocks) for EIP7702 authorizations status fetcher. Implemented in #12451.	Version: v9.0.0+ Default: 10 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_BATCH_SIZE	Number of blocks to reindex in the batch. Implemented in #12559.	Version: v9.0.0+ Default: 10 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_CONCURRENCY	Number of parallel reindexing block batches processing. Implemented in #12559.	Version: v9.0.0+ Default: 1 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_TIMEOUT	Timeout between reindexing block batches processing. Implemented in #12559.	Version: v9.0.0+ Default: 0 Applications: Indexer
MIGRATION_REINDEX_BLOCKS_WITH_MISSING_TRANSACTIONS_ENABLED	Enable reindex blocks with missing transactions migration. Implemented in #12559.	Version: v9.0.0+ Default: false Applications: Indexer
MIGRATION_RESTORE_OMITTED_WETH_TOKEN_TRANSFERS_BATCH_SIZE	Number of logs to process in the batch. Implemented in #10466	Version: v6.8.0+ Default: 50 Applications: API, Indexer
MIGRATION_MERGE_ADJACENT_MISSING_BLOCK_RANGES_BATCH_SIZE	Specifies the missing block range batch size selected for the merge migration. Implemented in #12778.	Version: v9.0.0+ Default: 100 Applications: Indexer
API_RATE_LIMIT_CONFIG_URL	URL to fetch API rate limit configuration from external source. Implemented in #12386	Version: v9.0.0+ Default: (empty) Applications: API
API_RATE_LIMIT_BY_KEY_TIME_INTERVAL	Time interval for API rate limit by key. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
API_RATE_LIMIT_BY_WHITELISTED_IP_TIME_INTERVAL	Time interval for API rate limit by whitelisted IP. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
API_RATE_LIMIT_UI_V2_WITH_TOKEN_TIME_INTERVAL	Time interval for API rate limit for UI v2 with token. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
API_RATE_LIMIT_BY_ACCOUNT_API_KEY_TIME_INTERVAL	Time interval for API rate limit by account API key. Time format. Implemented in #12386	Version: v9.0.0+ Default: 1s Applications: API
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_FETCHER	If true, multichain DB main (blocks, transactions, addresses) export fetcher doesn't run. Implemented in #12377.	Version: v9.0.0+ Default: false Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_BATCH_SIZE	Batch size for multichain DB main (blocks, transactions, addresses) export fetcher. Implemented in #12377.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_CONCURRENCY	Concurrency for multichain DB main (blocks, transactions, addresses) export fetcher. Implemented in #12377.	Version: v9.0.0+ Default: 10 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_ENQUEUE_BUSY_WAITING_TIMEOUT	Timeout before new attempt to append item to multichain DB main (blocks, transactions, addresses) export queue if it's full. Time format. Implemented in #12377.	Version: v9.0.0+ Default: 1s Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_MAX_QUEUE_SIZE	Maximum size of multichain DB main (blocks, transactions, addresses) export queue. Implemented in #12377.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_FETCHER	If true, multichain DB balances export fetcher doesn't run. Implemented in #12580.	Version: v9.0.0+ Default: false Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_BATCH_SIZE	Batch size for multichain DB balances export fetcher. Implemented in #12580.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_CONCURRENCY	Concurrency for multichain DB balances export fetcher. Implemented in #12580.	Version: v9.0.0+ Default: 10 Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_ENQUEUE_BUSY_WAITING_TIMEOUT	Timeout before new attempt to append item to multichain DB balances export queue if it's full. Time format. Implemented in #12580.	Version: v9.0.0+ Default: 1s Applications: Indexer
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_BALANCES_QUEUE_MAX_QUEUE_SIZE	Maximum size of multichain DB balances export queue. Implemented in #12580.	Version: v9.0.0+ Default: 1000 Applications: Indexer
INDEXER_POLYGON_ZKEVM_BATCHES_IGNORE	Comma-separated list of batch numbers that should be ignored by the fetcher. Implemented in #12387.	Version: v9.0.0+ Default: (empty) Applications: Indexer
INDEXER_OPTIMISM_MULTICHAIN_BATCH_SIZE	Max number of items sent to the Multichain service in one batch. Implemented in #12387.	Version: v9.0.0+ Default: 100 Applications: Indexer
CELO_UNRELEASED_TREASURY_CONTRACT	The address[^1] of the CeloUnreleasedTreasury core contract. Implemented in #12373.	Version: v9.0.0+ Default: (empty) Applications: Indexer
CELO_VALIDATORS_CONTRACT	The address[^1] of the Validators core contract. Implemented in #12373.	Version: v9.0.0+ Default: (empty) Applications: Indexer
CELO_EPOCH_MANAGER_CONTRACT	The address[^1] of the EpochManager core contract. Implemented in #12373.	Version: v9.0.0+ Default: (empty) Applications: Indexer

---

⛔ Deprecated environment variables

Deprecated environment variables list

Variable	Required	Description	Default	Version	Need recompile	Deprecated in Version
INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_FETCHER		If true, retry multichain search export fetcher doesn't run. Implemented in #12377. Replaced with INDEXER_DISABLE_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_FETCHER.	false	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_BATCH_SIZE		Batch size for retry multichain search export fetcher. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_BATCH_SIZE.	10	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_CONCURRENCY		Concurrency for retry multichain search export fetcher. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_CONCURRENCY.	10	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_ENQUEUE_BUSY_WAITING_TIMEOUT		Timeout before new attempt to append item to retry multichain search export queue if it's full. Time format. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_ENQUEUE_BUSY_WAITING_TIMEOUT.	1s	v8.1.0+		v9.0.0
INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_RETRY_MAX_QUEUE_SIZE		Maximum size of retry multichain search export queue. Implemented in #12377. Replaced with INDEXER_MULTICHAIN_SEARCH_DB_EXPORT_MAIN_QUEUE_MAX_QUEUE_SIZE.	1000	v8.1.0+		v9.0.0
API_RATE_LIMIT_TIME_INTERVAL		Time interval of rate limit. Implemented in #7148. Replaced with API_RATE_LIMIT_BY_KEY_TIME_INTERVAL, API_RATE_LIMIT_BY_WHITELISTED_IP_TIME_INTERVAL, API_RATE_LIMIT_UI_V2_WITH_TOKEN_TIME_INTERVAL, API_RATE_LIMIT_BY_ACCOUNT_API_KEY_TIME_INTERVAL, API_RATE_LIMIT_BY_IP_TIME_INTERVAL	1s	v5.1.3+		v9.0.0

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🚀 Features

• Export token info to Multichain service (#12867)
• Export balances to Multichain DB(#12726)
• Add eip7702 authorization status fetcher (#12451)
• Add token1155tx token404tx api v1 endpoints (#12720)
• Async multichain data export (#12490)
• Rate limits refactoring (#12386)
• Integrate Open API Spex lib (#11886)
• Update CodeQL action to v3 (#12697) (#12703)
• Support merged tenants (#12109)
• Support ethereum pre-deploy contracts (#12579)
• Add creation_status field to address response (#12660)
• Decode OP interop message payload, store cross-chain transfer data, display message page, send messages to Multichain (#12387)
• Celo l2 epochs (#12373)
• Add /api/v2/config/celo convenience endpoint (#12238)

🐛 Bug Fixes

• Ignore rate limit for api/v2/import/token-info and api/v2/import/smart-contracts/:param (#12917)
• Mitigate deadlocks while exporting balances and the main queue to the Multichain DB (#12898, #12928)
• Balances export queue: replace replace_all with replace only value and updated_at (#12892)
• Fix naming for apikey param in OpenAPI spec (#12891)
• Don't send coin balances with zero delta via ws (#12890)
• Balances export queue to multichain replace do_nothing with replace_all on insertion to the queue (#12888)
• Allow using temporary token for api/account/v2 by default (#12869)
• Fix increment of retries_number in exporting data to Multichain DB (#12847)
• Fix various errors on export of balances to Multichain DB (#12837)
• Reject empty token_id and value in export of token balances to the Multichain DB (#12829)
• Fix multichain export queues processing (#12822)
• Remove token_id parameter from coin balance payload to Multichain service API endpoint (#12817)
• Sanitize empty block_ranges payload before sending HTTP request to Multichain service(#12816)
• Disable Indexer.Fetcher.Optimism.Interop.MultichainExport for non-OP chains (#12814)
• Fix flaky test for exporting balances to Multichain DB (#12813)
• Filter out creation internal transaction with index == 0 (#12777)
• Filter out scilla transactions in internal transactions fetcher (#12793)
• Change default ordering in /api/v2/smart-contracts (#12767)
• Filter scilla transactions by status (#12756)
• Fix timeout on cache update (#12773)
• Error on too big block numbers in APIv1 txlist method (#12727)
• Fix CSV export tests (#12744)
• Fix race condition for EventNotification (#12738)
• Multichain retry hex decoding (#12742)
• Internal transactions balance extraction (#12654)
• Multichain search export: retry only on failed chunks (#12459)
• Display correct OP Deposit origin address (#12672)
• Store blocks_validated in DB for Stability Validators (#12540)
• MarketHistory on conflict clause (#12541)
• Flaky 404 in /api/v2/internal-transactions (#12701)
• CryptoRank integration (#12523)
• Fix timeout on fetching address internal transactions (#12570)
• Coin balance history with internal tx changes (#12631)
• Update all block fields on conflict (#12418)
• Fix pending transactions sanitizer (#12559)
• Don't send logs without topic to sig provider (#12620)
• Add missing fields to Celo Epochs-related endpoints (#12589)
• Correctly use Geth importer for Besu genesis file. (#12466) (#12686)
• Ignore unknown type txs in gas price oracle (#12613)
• Resolve timeouts on Celo epoch reward contract reads (#12229)
• Prevent constant refetching of celo epoch blocks (#12498)
• Fix typo in ondemand token balance request (#12495)
• Fix for add_0x_prefix function (#12514)

⚡ Performance

• Api v1 txlsit& txlistinternal endpoints (#12774)
• Optimize Explorer.Chain.Cache.Blocks (#12402)

⚙️ Miscellaneous Tasks

• Remove obsolete API response props (#12931)
• Balances Multichain export: Refactor rows acquisition for deletion query (#12839)
• Change name of Swagger generation workflow (#12840)
• migrate Auth0 to mint as well (#12807)
• Migrate from HTTPoison to Tesla.Mint (#12699)
• Merge adjacent missing block ranges (#12778)
• Optimize missing block ranges operations (#12705)
• Hold parity with Etherscan APIv1 for getcontractcreation and getblocknobytime endpoints (#12721)
• Allow resending reindexed OP interop messages to Multichain service (#12626)
• Duplicate block countdown endpoint in API v2 (#12704)
• Revise Explorer.Helper.add_0x_prefix usage (#12543)
• New tac microservice endpoint for search (#12448)
• Add filter for value > 0 to txlistinternal (#12679)
• Optimize realtime events notifier (#12494)
• Drop address_coin_balances value_fetched_at index (#12598)
• Update deprecated address to address_hash in tx summary response (#12617)
• Remove redundant word in comment (#12603)
• Move background migrations under indexer mode (#12480)
• Support multiple interop messages view on transaction page (#12455)
• Remove is_self_destructed field in /api/v2/smart-contracts/{address_hash} response (#12239)
• Set home directory for blockscout user (#12337)

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This discussion was created from the release BlockScout v9.0.0.