Kava 17 Release

For deployment to Kava Mainnet at height 12766500 around 2024-11-22 10:00 UTC.

Click to view upgrade instructions

Software	Version
Golang	v1.22
Cosmos SDK	v0.47.10
CometBFT	v0.37.13
Rocksdb	v9.3.1

Please note that if you run your node with rocksdb as the database, this update will require an update to v9.3.1 of rocksdb.

Upgrade Changes

For a complete list of changes, see CHANGELOG.md.

Low-level Data Structure Updated to IAVL V1

IAVL V1 is an updated data format for the low-level storage of application data in the Kava blockchain.
The change in format results in much more performant syncing of the chain, and greatly reduces the
storage footprint required for Kava nodes.

The release will continue to work with previous data (IAVL V0). However, greater performance benefits will be had if the data is synced from scratch.

• For mainnet, full-archive node operators should use the IAVL v1 snapshot from https://quicksync.io/kava and 0.26.2-iavl-v1 if upgrading to IAVL v1 before the v0.27.0 release.
• Pruning node operators are encouraged to start their node from scratch via statesync
• Nodes using rocksdb are encouraged to use tcmalloc as their memory allocator

See the IAVL V1 migration guide.

Fix EIP712 Signing

This release removes some invalid restrictions on signing EIP712 transactions that prevented some EVM wallets from submitting valid transactions.

Kava 17 Release Candidate 1 (v0.27.0-alpha.0)

For deployment to Kava Testnet at height 14290160 around 2024-11-07 00:00 UTC.

Note: This is a release candidate only. Do not attempt to run this software on mainnet.

Software	Version
Golang	v1.22
Cosmos SDK	v0.47.10
CometBFT	v0.37.13
Rocksdb	v9.3.1

Please note that if you run your node with rocksdb as the database, this update will require an update to v9.3.1 of rocksdb.

Upgrade Changes

For a complete list of changes, see CHANGELOG.md.

Low-level Data Structure Updated to IAVL V1

IAVL V1 is an updated data format for the low-level storage of application data in the Kava blockchain.
The change in format results in much more performant syncing of the chain, and greatly reduces the
storage footprint required for Kava nodes.

The release will continue to work with previous data (IAVL V0). However, greater performance benefits will be had if the data is synced from scratch.

• For public testnet, full-archive node operators should install as usual. No IAVL V1 snapshot data is available for public testnet.
• Pruning node operators are encouraged to start their node from scratch via statesync
• Nodes using rocksdb are encouraged to use tcmalloc as their memory allocator

See the IAVL V1 migration guide.

Fix EIP712 Signing

This release removes some invalid restrictions on signing EIP712 transactions that prevented some EVM wallets from submitting valid transactions.

v0.26.2-iavl-v1

This release should only be run on IAVL V1 snapshot data or nodes started from scratch via statesync.

IAVL V1

This is the first release of Kava on IAVL V1, a new format for the low-level data storage used by the Kava blockchain.

Using IAVL V1 brings performance speedups for syncing and massively reduces the data stored on disk (~2.4x less data storage required for a full-archive node).

For full-archive node operators, a data snapshot with full historical state using IAVL V1 is available here.
For validators & operators of pruning nodes, it is recommended that node data is recreated from scratch via statesync.

Future minor versions of v0.26 will be made available for both iavl v0 and iavl v1.
Future major versions will use IAVL V1 unless otherwise specified.

Node operators using rocksdb are encouraged to use tcmalloc as their memory allocator.

For more details see the IAVL V1 migration guide.

Dependency updates

In addition to an upgrade to the database structure, additional updates were made to improve the performance of nodes configured to use the EVM indexer (json_rpc["enable-indexer"] = true).

---

Full Changelog: v0.26.2...v0.26.2-iavl-v1

v0.26.2

This is a non-breaking release. Node operators are encouraged to apply the update at their earliest convenience.

The update includes:

• Optional custom configurations for all databases when using rocksdb. See Kava-Labs/opendb for more details.
• A new rollback flag, --unsafe-remove-modules, for completely removing module state of newly added modules during rollback of a failed upgrade block

Rocksdb users are encouraged to upgrade to rocksdb v8.10.

For a complete list of changes, see CHANGELOG.md.

v0.26.1

This is a non-breaking release. Node operators are encouraged to apply the update at their earliest convenience.

The update includes optimizations to the BeginBlocker of x/cdp and EndBlocker of x/pricefeed. Operators should expect ~10x faster processing of those operations on syncing nodes, amounting to runtime savings of 120+ ms per processed block.

For a complete list of changes, see CHANGELOG.md.

Kava 16 Release

For deployment to Kava Mainnet at height 9561866 around 2024-04-24 15:00:00 UTC.

Click to view upgrade instructions

Software	Version
Golang	v1.21
Cosmos SDK	v0.47.10
CometBFT (formerly Tendermint)	v0.37.4
Rocksdb	v8.10.0+

Please note that if you run your node with rocksdb as the database, this update will require an update to v8.10.0 of rocksdb.

Upgrade Changes

For a complete list of changes, see CHANGELOG.md.

Cosmos SDK Updated to v0.47.10

• Updated to cosmos-sdk v0.47.10
• Removed support for legacy REST API on all kava modules
• Updated x/incentive cli to use grpc query client instead of legacy REST API
• Added grpc query service to x/validator-vesting to replace legacy REST API

BEP3 EVM Native Conversion

• Update EVM native conversion logic to handle bep3 assets

Packet Forwarding Middleware

• Added ibc packet forwarding middleware for ibc transfers

CDP Performance Improvements

• Add module param and logic for running x/cdp begin blocker every n blocks

Kava 16 Release Candidate 1 (v0.26.0-alpha.0)

For deployment to Kava Testnet at height 10746300 around 2024-04-09 00:00:00 UTC.

Click to view upgrade instructions

Software	Version
Golang	v1.21
Cosmos SDK	v0.47.10
CometBFT (formerly Tendermint)	v0.37.4
Rocksdb	v8.10.0+

Please note that if you run your node with rocksdb as the database, this update will require an update to v8.10.0 of rocksdb.

Upgrade Changes

For a complete list of changes, see CHANGELOG.md.

Cosmos SDK Updated to v0.47.10

• Updated to cosmos-sdk v0.47.10
• Removed support for legacy REST API on all kava modules
• Updated x/incentive cli to use grpc query client instead of legacy REST API
• Added grpc query service to x/validator-vesting to replace legacy REST API

BEP3 EVM Native Conversion

• Update EVM native conversion logic to handle bep3 assets

Packet Forwarding Middleware

• Added ibc packet forwarding middleware for ibc transfers

CDP Performance Improvements

• Add module param and logic for running x/cdp begin blocker every n blocks

Kava 15 Release (v0.25.0)

For deployment to Kava Mainnet at height 7638000 around 2023-12-07 15:00:00 UTC.

Click to view upgrade instructions.

This release adds improvements to the x/community module and param changes, along with prerequisite handlers for consolidating community pool funds, disabling inflation, and adjusting staking rewards at a future date.

Software	Version
Golang	v1.20
Cosmos SDK	v0.46.11
CometBFT (formerly Tendermint)	v0.34.27
Rocksdb	v8+

For a complete list of changes, including client breaking changes, see CHANGELOG.md.

Please note that if you run your node with rocksdb as the database, this update will require an update to v8 of rocksdb. Recommended rocksdb verison: v8.1.1

Upgrade Changes

These changes occur on the mainnet upgrade height 7638000.

x/community

• New API endpoint for staking reward calculation. This has also been backported to v0.24.1 to ease transition, details can be found here.

x/staking

• The minimum validator commission rate set to 5% for all existing and new validators to align with proposal #128.

x/gov

• New x/authz grant for management of x/kavadist funds via gov proposals.
• Tally quorum set to 20%, requiring less votes for proposals to be considered for acceptance/denial.

x/incentive

• Rewards for bkava Earn deposits updated from 5,000,000 KAVA to 600,000 KAVA per year.

Switchover Changes

These changes do not take effect on upgrade height, but instead are automatically applied on the first block after the "Switchover Time" listed below. No additional binary changes or upgrade is necessary to support these changes, as these timed upgrades are included in this version.

Network	Switchover Time	Annualized Staking Rewards
Mainnet	2024-01-01 00:00:00 UTC	10 Million KAVA

Inflation & Staking Rewards

Inflation will be disabled in x/mint and x/kavadist. This means the total supply of KAVA will be fixed after the switchover time. Staking rewards will be paid from a fixed per second rate from community pool funds, calculated from the annualized staking rewards listed in the table above.

x/distribution community tax will be reduced to 0%.

Community Funds

Prior to switchover, community funds are stored in the x/distribution community pool, x/community account, and x/kavadist account. All community funds will be consolidated to be contained in the x/community module account.

For additional technical details, see the x/community spec.

v0.24.2

This is a non-breaking and optional release. If you do not use a ledger, this update is not necessary.

This update contains an update of ledger-cosmos-go from v0.12.2 to v0.13.1, to resolve failure to sign transactions with cosmos ledger app 2.34.12

Kava 15 Release Candidate 2 (v0.25.0-alpha.1)

This second release candidate fixes the application database path when using rocksdb as the database backend.