solana-labs/solana v1.15.0

Testnet - v1.15.0

on GitHub

This is a Testnet release. It is not recommended for Mainnet Beta

Upgrade notes

Node operators, please delete your <ledger>/calculate_accounts_hash_cache directory (if you have one, to reclaim unused disk space). It has been moved/renamed to <ledger>/accounts_hash_cache/full.

Changes

• Geyser improvements

  • geyser: add parent slot/blockhash to block (#29855)

• Incremental snapshots will use incremental accounts hash in a future release

  • Node operators, please delete your <ledger>/calculate_accounts_hash_cache directory (if you have one, to reclaim unused disk space). It has been moved/renamed to <ledger>/accounts_hash_cache/full.

• AccountsDB

  • use only one store per slot
    • As a result of this change:
      • The structure/file format of a snapshot has not changed, BUT 1.15 will only LOAD and only write snapshots that contain a single store per slot.
        • 1.14 (and just considering this issue, 1.13) will be able to load anything 1.15 creates
        • Importantly 1.15 will assert if a snapshot contains more than 1 store per slot.
      • 1.14 was changed to remove the cli argument that enabled a validator to DISABLE the write cache. The result is that 1.14 validators will ONLY create one store per slot.
        • However, 1.14 ledger-tool create-snapshot does NOT use the write cache, so snapshots generated by 1.14 ledger-tool create-snapshot can contain more than 1 store per slot. This results in an assert when loading the snapshot on 1.15.
  • use atomicu64 for bucket maxsize instead of lock (#29569)
  • ancient append vecs enabled at -10k by default (#29565)
  • feature: don't do rewrites in rent collection (#26491)
  • Feature: Epoch Accounts Hash (#27539)

• Blockstore improvements

  • Reduce the amount of IO that LedgerCleanupService performs (#29239)

• Hotswap identity improvements

  • patches bug in sigverify-shreds when identity is hot-swapped (#29802)

• Turbine improvements

  • errors out when retransmit loopbacks to the slot leader (#29789)
  • prioritize repair requests by stake (#29730)
  • Increase turbine propagation const (#29742)

• Runtime VM improvements

  • Adds big integer modular exponentiation (EIP-198) (#28503)
  • Adds alt_bn syscalls (EIP-196, EIP-197) (#27961)
  • Update compute costs of curve25519 syscalls (#29610)
  • Disable built-in loader ownership chains (#29959)
  • Program un-/redeployment cooldown (#29136)
  • Limit max instruction trace length to 64 (#27938)
  • Disable CPI setting is_executable and rent_epoch (#26987)
  • Stop sibling instruction search at parent (#27289)

• Duplicate shred handling improvements

  • Ingest duplicate proofs sent through Gossip (#29227)

• RPC changes

  • RPC getPerformanceSamples: Add numNonVoteTransaction (#29388)
  • Add pubsub address to RpcContactInfo (#29165)
  • Add rust client support for getRecentPrioritizationFees (#29558)

• Client reorg

  • 1.15 brings a large reorganization of client crates, intended to reduce the number of dependencies downstream users have to pull in to use client apis. All of the client types from solana-client are now featured in their own crates to be pulled in separately as needed:
  • New crates of note: solana-rpc-client and solana-rpc-client-api; solana-quic-client and solana-udp-client; solana-tpu-client; solana-connection-cache

• Gossip improvements

  • gossip nodes are pruned based on timeliness of delivered messages (#29177)
  • reworks weights for gossip pull-requests peer sampling (#28463)
    • Should help with startup bandwidth
  • includes origin's stake in gossip push nodes sampling (#29343)

• Ledger-tool improvements

  • add solana-ledger-tool bigtable copy (#28122)
  • Add output in JSON for solana-ledger-tool bounds subcommand (#28410)
  • ledger-tool: Clean account paths in all cases (#29609)
  • ledger-tool: fix double-readlock in main (#27322)

• Security

  • Configurable hashes per tick (#29659)
  • Feature: filter stake by min delegation for rewards (#29618)

• Banking

  • Make it possible to record all of incoming transactions with --enable-banking-tracer, to be simulated later for benchmark and investigation (#29196)