v0.5.5

What's Changed

• Cache updatecache fix by @MudDev in #14
• feat: v0.5.5 - xID Identity System + VRF Randomness Beacon by @MudDev in #15

Full Changelog: v0.5.4...v0.5.5

v0.5.4

IBC Wallet Compatibility Fix

Fixes IBC transfer signature verification for Keplr and Leap wallet users. IBC v10's MsgTransfer proto includes extra fields (use_aliasing, encoding) with dont_omitempty annotations that cause the chain's amino encoder to produce sign bytes different from what wallets generate. The fix adds a fallback in ethsecp256k1.VerifySignature that strips these extra fields and re-verifies, allowing wallet-signed IBC transfers to succeed.

Key changes:

• Added stripExtraAminoFields() to crypto/ethsecp256k1/ethsecp256k1.go
• Signature verification now tries both original and stripped amino sign docs
• EIP-712 verification paths also try stripped sign docs as fallback

Minimum Validator Self-Delegation

Introduces a network-wide minimum self-delegation requirement of 1,000,000 EPIX for creating new validators. This ensures validators maintain meaningful stake in the network.

Key changes:

• Added min_validator_self_delegation parameter to the epixmint module
• Added MinValidatorSelfDelegationDecorator ante handler that enforces the minimum on MsgCreateValidator
• Upgrade handler sets the parameter to 1,000,000 EPIX at upgrade height

Upstream Sync

Merged latest changes from cosmos/evm upstream, including:

• IBC v2 middleware error acknowledgement fix
• Gas accounting fix in IBC callbacks
• Static call testing infrastructure
• EIP-712 aminojson sign mode handler refactor
• go-ethereum dependency bump
• Code quality and CI improvements

What's Changed

• V0.5.4 features by @MudDev in #13

Full Changelog: v0.5.3...v0.5.4

v0.5.3

What's Changed

• feat(upgrade): add v0.5.3 upgrade for deterministic emission by @MudDev in #8
• Clean up the deterministic emissions by @MudDev in #9
• feat(upgrade): add v0.5.3 upgrade proposal and fix deterministic emis… by @MudDev in #10
• feat(metadata): add denom metadata configuration for aepix/epix in th… by @MudDev in #11
• Set height for v0.5.3 upgrade. by @MudDev in #12

Full Changelog: v0.5.2...v0.5.3

Epix Patch

This is a prebuilt binary high severity vulnerability patch, replace it with your current binary

1. Download

wget https://github.com/EpixZone/EpixChain/releases/download/v0.5.2-fix/epixd

2. Verify sum hash:

sha256sum epixd

7926e2ab1464ed69db9b08bee277fe7895e21a2f715b8b441d908a66064bcd57

If you are using cosmovisor, use the full path:

cp epixd $HOME/.epixd/cosmovisor/upgrades/v0.5.2/bin/epixd

sha256sum $HOME/.epixd/cosmovisor/upgrades/v0.5.2/bin/epixd

7926e2ab1464ed69db9b08bee277fe7895e21a2f715b8b441d908a66064bcd57

v0.5.2

What's Changed

• fix(evm): correct chain ID extraction and configuration for compatibility tests by @MudDev in #6
• Release/v0.5.1 by @MudDev in #7
• Added IBC sequencer upgrade

Full Changelog: v0.5.1...v0.5.2

v0.5.1

EpixChain v0.5.1 Release Notes

Overview

EpixChain v0.5.1 is a maintenance release that enhances token denomination handling, improves EVM configuration management, and strengthens the chain's compatibility with Ethereum tooling. This release focuses on refining the native token (aepix/epix) metadata and streamlining EVM chain ID handling across the application.

Key Improvements

Enhanced Token Denomination Handling

• Comprehensive Denom Metadata: Added complete denomination metadata for EpixChain's native token (aepix/epix) with proper 18-decimal precision
• Bank Module Integration: Denom metadata is now properly registered in the bank module during the upgrade process
• Chain Constants: Introduced centralized denomination constants (BaseDenom, DisplayDenom, Decimals) for better code organization and consistency

Improved EVM Configuration

• EVM Params Update: Upgrade handler now sets EvmDenom and ExtendedDenomOptions parameters automatically
• Coin Info Initialization: EVM coin info is properly initialized from bank metadata during the upgrade
• Chain ID Handling: Enhanced EVM chain ID extraction and configuration in CLI and development scripts

Notes for develoeprs

• Local Node Scripts: Improved local_node.sh with automatic EVM chain ID environment variable extraction
• Test Infrastructure: Enhanced test helpers and compatibility test scripts for better EVM tooling support
• Genesis State: Updated genesis state configuration for EpixChain-specific parameters

Technical Details

Upgrade Handler

The v0.5.1 upgrade handler performs the following operations:

1. Sets comprehensive denom metadata for aepix/epix tokens
2. Updates EVM module parameters with correct denomination settings
3. Initializes EVM coin info from bank metadata
4. Runs standard module migrations

Token Metadata

Base Denom:    aepix
Display Denom: epix
Decimals:      18
Symbol:        EPIX
Name:          EpixChain
URI:           https://epix.zone/

Files Modified

• evmd/upgrades.go - Upgrade handler implementation
• evmd/constants.go - Chain denomination constants
• evmd/genesis.go - Genesis state configuration
• evmd/cmd/evmd/cmd/root.go - CLI improvements
• scripts/local_node.sh - Development script enhancements
• proposals/v0.5.1-upgrade-proposal.json - Upgrade proposal

Upgrade Information

Upgrade Height

Block Height: 1550000

Upgrade Process

1. Validators: The upgrade will occur automatically at block height 1550000
2. Node Operators: Ensure you're running the latest v0.5.1 binary before the upgrade height
3. Verification: After upgrade, verify with epixd version (should show v0.5.1)

Building from Source

git checkout v0.5.1
make install
epixd version  # Should output v0.5.1

Breaking Changes

None - This is a backward-compatible maintenance release.

State Changes

• Denom metadata added to bank module
• EVM parameters updated with denomination settings
• EVM coin info initialized

Links

• Release: https://github.com/EpixZone/EpixChain/releases/tag/v0.5.1
• Upgrade Proposal: proposals/v0.5.1-upgrade-proposal.json
• Full Changelog: See commit history on release/v0.5.1 branch

Contributors

Special thanks to all contributors who made this release possible!

---

What's Changed

• Correct the validator-onboarding.md documentation by @andrewLarsson in #1
• Improvements (TopHolders module integration) by @MudDev in #2
• feat: enhance EVM configuration and upgrade handling in EpixChain by @MudDev in #3
• fix: update upgrade name and logging for EpixChain v0.5.1 upgrade by @MudDev in #4
• fix: remove version prefix from VERSION variable in Makefile by @MudDev in #5
• fix(evm): correct chain ID extraction and configuration for compatibility tests by @MudDev in #6
• Release/v0.5.1 by @MudDev in #7

New Contributors

• @andrewLarsson made their first contribution in #1

Full Changelog: v0.5.0-rc42...v0.5.1

Note: This release maintains full compatibility with existing EpixChain deployments while improving the foundation for future enhancements.

Initial Epix Chain

Full Changelog: https://github.com/EpixZone/EpixChain/commits/v0.5.0-rc42