Speculative Nonces and Blockchain Updates

• Store extended transaction json
• Adds pending_transaction_get
  
* Add speculative nonce support for payments
• Add speculative_nonce output to account_get
• Updates blessed snapshot from 894241 to 900001
• Updates blockchain-core from 2021.06.25.1 to 2021.06.30.0

Chain Halt Fix

This upgrades the core to 2021.06.25.1 to fix a chain halt at Block 896679

NOTE This upgrade is required to avoid halting your blockchain instance.

Validator / State Channel Fixes

This upgrades the core the 2021.06.23.1 to fix a number of validator issues and scaling for chain state channel support.

NOTE This upgrade is required for full validator and state channel support. Your node will halt if this upgrade is not applied

Upgrade Core for Validators

This upgrades the core the 2021.05.29.0 to complete the validator integration.

NOTE This upgrade is required for full validator support

Quick Snapshot Load

• Adds a default s3_base_url to to enable quick snapshot syncing of the configured snapshot

Core Chain Variable Fix

• This upgrades blockchain core to get past a staking variable format change error
• Bumps the snapshot block and hash

NOTE: This upgrade is required to get past an invalid staking key chain var transaction

Core Upgrade and Lock File Fix

This release fixes a missing version lock file which would cause the previous release (1.1.25) to stall when assert_location_v2 was activated.

NOTE: An upgrade to this version is required to stop your node from halting at the assert_location_v2 block height 802413

Assert Location V2

This release introduces support for the assert_location_v2 transaction as described on the engineering blog.

NOTE: When the assert_location_v2 chain variable is activated your node must be at least at this version to avoid halting.

Planned chain variable activation: April 12, 2021 at 11am Pacific Time

Rewards V2

This release introduces support for the rewards_v2 transaction as described on the engineering blog.

When the rewards_v2 chain variable is activated your node must be at least at this version to avoid halting.

New Chain Variable

As per https://engineering.helium.com/2021/03/04/blockchain-update-proof-of-coverage-update.html this release upgrades the blockchain core and increases the snapshot hash for faster initial syncs