Apricot Phase 0 - Upgrade 1 - Patch 1

This update is backwards compatible. It is optional, but encouraged. The patch includes stability, performance, and monitoring improvements. Note that this update removes network-timeout-increase and network-timeout-reduction as command line arguments.

Change summary:

• Added UTXOs to the platformvm.getStake response.
• Added benchlist reporting to the info.peers response.
• Added additional health checks into the networking layer.
• Added percent of stake connected as a reported metric.
• Added bootstrapping restart logic to ensure the node has caught up to the current tip, even during times of high throughput.
• Added subnet-wide bootstrapping to ensure that a chain won't fall behind due to another chain bootstrapping.
• Prevented verification of rejected blocks to avoid unnecessary computation.
• Removed gossiping of non-preferred blocks to the network.
• Switched the network timeout calculator to use an EWMA of the observed network latency.
• Removed Get requests from the network latency calculations.
• Cleaned up the benchlisting algorithm.
• Cleaned up handling of dropped messages on send.
• Cleaned up outstanding request and timeout logic.
• Generalized performance tracking to allow for prefixing of profile names.
• Added additional caching to the Avalanche bootstrapping traversal.
• Fixed ansible linting.

The added command line arguments mainly consist of configurations of health checks. Additionally, the modified network latency calculations changed the name of some command line args.

Added command line arguments:

• network-timeout-halflife
• network-timeout-coefficient
• network-health-min-conn-peers
• network-health-max-time-since-msg-received
• network-health-max-time-since-msg-sent
• network-health-max-portion-send-queue-full
• network-health-max-send-fail-rate
• network-health-max-time-since-no-requests
• router-health-max-drop-rate
• router-health-max-outstanding-requests
• health-check-frequency
• health-check-averager-halflife
• bootstrap-retry-enabled
• bootstrap-retry-max-attempts

Removed command line arguments:

• network-timeout-increase
• network-timeout-reduction

Apricot Phase 0 - Upgrade 1

Please note that this patch is not backwards compatible with previous releases. This upgrade fixes performance issues related to interchange transfers between X, C, and P chains. We urge everyone in the community to upgrade as soon as possible in order to ensure that their nodes are not affected. Also note that nodes may take several extra minutes to connect after the upgrade and the process should be allowed to complete uninterrupted.

The primary components to this upgrade include:

• Fixed atomic import validation on C-Chain
• Added rule exception logic to allow atomic bonus blocks
• Added fail-fast logic into Shared Memory if duplicated deletes are issued
• Fixed issue where polls could stall in snowman because of a failure to clear requests
• Fixed BAD BLOCK issue in coreth due to unknown ancestors
• Fixed a race condition in the repair canonical chain script in coreth
• Limited number of processing blocks in Snowman and processing txs in Avalanche
• Updated networking timeout default values and benchlist settings
• Verified there was no safety violation after the initial network instability

Apricot Phase 0 - Patch 5

This update is backwards compatible. It is optional, but encouraged. The patch includes stability improvements.

• Fixed a potential deadlock when registering new chains that could cause the P-chain and http(s) endpoint to block.
• Repairs TxID -> Block Height indexing in the C-chain.
• Added graceful handling of empty contract deployments in the debug_traceTransaction API in the C-chain.
• Improved error handling in the C-chain.

Apricot Phase 0 - Patch 4

This update is backwards compatible. It is optional, but encouraged. The patch includes CLI upgrades, API bug fixes, stability improvements, and performance improvements.

• Fixed an issue where C-chain block indexes could map to unaccepted blocks at a given height.
• Fixed VM crash when the RPCChainVM experienced high API loads.
• Fixed optimistic vote bubbling in the Avalanche Engine to correctly pass votes through processing vertices.
• Added field IncludePartial to the AVM's GetBalance and GetAllBalances API methods. This changes the default behavior to only return the balances of spendable and uniquely owned assets.
• Added the ability to specify custom genesis configs for custom network IDs.
• Added additional IPC API functionality.
• Added additional caching to the RPCChainVM.
• Improved plugin directory lookup to always work with the binary releases.

Apricot Phase 0 - Patch 3

This update is optional but encouraged. The patch includes minor bug fixes relating to APIs.

• Fixed hanging call when attempting to filter C-chain logs.
• Fixed C-chain client to call the proper multi-coin API.
• Added getAtomicUTXOs to avm and platformvm API clients.

Apricot Phase 0 - Patch 2

This update is optional but encouraged. The patch includes bug fixes and performance improvements.

• Fixed bootstrapping processing cache to reduce duplicated traversals when bootstrapping Avalanche.
• Optimized P-chain verification during bootstrapping.
• Fixed maximum benchlist calculation to use the proper input values.
• Removed extra linter runs from CI.
• Added Height to the snowman.Block interface.

Apricot Phase 0 - Patch 1

This update is optional but encouraged. The patch includes minor bug fixes, performance improvements, and preparations for the remaining Apricot upgrades.

• Fixed a node crash bug when users disabled the Health API.
• Fixed a bug in uptime tracking that could over report a node's uptime.
• Refactored vertex parsing to use a Codec.
• Separated stateful and stateless vertex management.
• Added per-field slice length checking to the Codec.
• Introduced a new codec type that groups TypeIDs together.
• Introduced message limit flags to the CLI.
• Introduced a semanticdb package to be used during a future database migration.
• Added Epoch tracking to the chain context.
• Improved some of the error messages returned during transaction validation.
• Reduced GC pressure in the version DB.

Apricot Phase 0

Please note that this upgrade is not backwards compatible with previous releases. Upgrades must be performed no later than Monday, December 7th at 11 p.m. UTC (6 p.m. EST). The upgrade, which was originally scheduled around mid December, is now being expedited to fix an important token unlocking bug. We urge everyone in the community to upgrade as soon as possible in order to ensure that their nodes are not affected.

There are two primary components to this upgrade:

• General preparations for our upcoming Apricot network upgrade, called the Apricot Phase Zero Upgrade
• Fixing an issue that prevented stake-able locked outputs from being unlocked after their locktime had passed

Mainnet Patch - 6

Please note that this release changes the default response format of platform.getTxStatus and platform.getCurrentValidators.

The update is optional but encouraged. The patch includes performance improvements and some quality of life improvements.

• Removed deprecated formats of platform.getTxStatus and platform.getCurrentValidators.
• Added support for hex encodings of imported and exported users from the keystore API.
• Set golang requirement to v1.15.5 to avoid a DoS vulnerability found in the golang standard lib.
• Added API clients to act as helpers interacting with the node software.
• Implemented falling back to bootstrapping if a node becomes disconnected from the rest of the network.
• Fixed the GetUTXOs APIs when UTXOs referenced multiple addresses.
• Refactored binary encoding to better generalize RPC options.
• Fixed IP block filtering to correctly set the window length.
• Generalized the codec package to be able to manage multiple codecs with different versions.
• Added Epoch to the Vertex interface in preparation of a future release.
• Deferred transaction hashing to reduce CPU/Memory utilization past fast checks.

Mainnet Patch - 5

Please note that the release after this one, v1.0.6, will contain breaking changes. Namely, the response format of platform.getTxStatus and platform.getCurrentValidators will change.

The changes in this release, v1.0.5, are backwards compatible with previous releases. The update is optional but encouraged. The patch includes performance improvements and some quality of life improvements.

• Added IssueTx and GetUTXOs to the C-chain API to enable issuing atomic swaps without revealing private keys to a node.
• Fixed memory leak in the snowman request manger with oracle block processing.
• Fix UTXO pagination bug that under-reported available funds.
• Moved chain http logs to live in the human readable chain logs folder.
• Optimized AVM load user to avoid reading unnecessary information from disk.
• Restructured how IDs are managed to avoid heap allocations.
• Optimized the UniformSamplers to avoid creating multiple maps.
• Reduced usage of ids.Set in favor of []ids.ID to better utilize continuous memory.
• Introduced []byte reuse in PrefixDB.
• Implemented type specific sorting functions to avoid frequent interface conversion allocations.
• Removed a memory allocation + copy in socket sending for full length of the message.