v1.6.0

WARNING: DO NOT upgrade to this binary immediately;

Upgrade Plan

The plan name for dryrun/mainnet upgrade is v1.6.

Improvements:

• E2ee logic improvements

Bugfixes

• Cleanup and improve x/mint params validation and test in cosmos-sdk

Config Changes

N/A

Please refer to CHANGELOGS

v1.5.4

Improvements🚀:

• Support new flags to controls mempool

Bugfixes

• Missing feebump for priority nonce mempool (tx replacement)

• Patch priority nonce mempool logic

• Please refer to CHANGELOGS

New configurations

Please add those following line in your app.toml

[mempool]
# Setting max-txs to 0 will allow for a unbounded amount of transactions in the mempool.
# Setting max_txs to negative 1 (-1) will disable transactions from being inserted into the mempool (no-op mempool).
# Setting max_txs to a positive number (> 0) will limit the number of transactions in the mempool, by the specified amount.
#
# Note, this configuration only applies to SDK built-in app-side mempool
# implementations.
max-txs = 0

# Required percentage threshold for the transaction replacement policy to take effect.
feebump = 10

###############################################################################
###                             Cronos Configuration                       ###
###############################################################################

[cronos]

# Set to true to disable tx replacement.
disable-tx-replacement = false

# Set to true to disable optimistic execution (recommended to set to true on NON validator nodes).
disable-optimistic-execution = true

v1.5.3

Bug fixes:

• Update BlockAddressesDecorator to check authorization list
• Please refer to CHANGELOGS

v1.5.2

⚠️ Warning: Do not use this upgrade as it contains breaking changes.

v1.4.12

⚠️ Experimental: Do not use this upgrade on validator nodes

🚀 Improvement

Optimizes the staking module’s endblock processing by using a cache, significantly reducing storage access overhead and improving execution speed for archive nodes.

A new configuration is added to control the cache size

[staking]
# cache-size defines the maximum number of time-based queue entries to cache
# for unbonding validators, unbonding delegations, and redelegations.
# cache-size = 0 means unlimited cache (no size limit).
# cache-size < 0 means the cache is disabled.
# cache-size > 0 sets a size limit for the cache.
cache-size = 0

v1.5.1

Security patch on top of v1.5.0

• Patch comet bft to include security advisory fix GHSA-hrhf-2vcr-ghch

---

v1.5.0

Cronos EVM v1.5.0 is here! 🚀

WARNING: DO NOT upgrade to this binary immediately;

This release delivers big improvements across performance, usability, and interoperability:

• VM improvements: Upgraded to go-ethereum v1.15, enabling new opcodes (TSTORE, TLOAD, MCOPY) and supporting EIP-7702 for enhanced EOA capabilities.

• RPC expansion: Added get_blockReceipts endpoint for more efficient block-level receipt queries.

• Mempool optimization: Now supports transaction prioritization and replacement policies.

• IBC integration: Upgraded to IBC v10, with ongoing exploration of Eureka activation on Cronos chain.

For more details, refer to CHANGELOG

Upgrade Plan

The plan name for dryrun/mainnet upgrade is v1.5.

Config Changes

# The maximum gas a query coming over rest/grpc may consume.

# Recommended value 100000000 to avoid DOS

query-gas-limit = "100000000"

Notes

Some Inconsistent behavior with Ethereum

For EIP-7702, the authorization code will also revert in case of failed tx.

v1.4.11

Security patch:

• Patch comet bft to include security advisory GHSA-hrhf-2vcr-ghch

v1.5.0

Cronos EVM v1.5.0 is here! 🚀

WARNING: DO NOT upgrade to this binary immediately;

This release delivers big improvements across performance, usability, and interoperability:

• VM improvements: Upgraded to go-ethereum v1.15, enabling new opcodes (TSTORE, TLOAD, MCOPY) and supporting EIP-7702 for enhanced EOA capabilities.

• RPC expansion: Added get_blockReceipts endpoint for more efficient block-level receipt queries.

• Mempool optimization: Now supports transaction prioritization and replacement policies.

• IBC integration: Upgraded to IBC v10, with ongoing exploration of Eureka activation on Cronos chain.

For more details, refer to CHANGELOG

Upgrade Plan

The plan name for dryrun/mainnet upgrade is v1.5.

Config Changes

# The maximum gas a query coming over rest/grpc may consume.

# Recommended value 100000000 to avoid DOS

query-gas-limit = "100000000"

Notes

Some Inconsistent behavior with Ethereum

For EIP-7702, the authorization code will also revert in case of failed tx.

v1.4.10

Bug fixes:

• Include a bugfix for "version not found" error during pruning
• Please refer to CHANGELOGS