v0.15.1

• Solana crates are now published to http://crates.io again
• clear-config.sh command now works

Pemissionless Validator Staking

Silver Strand v0.15.0

Major Features And Improvements

• Permissionless validator staking

  Staking accounts no longer require validators to publish votes on their behalf. Instead, stake delegation and validator votes are stored on-chain, where rewards are automatically derived by processing the ledger.

• Groundwork for credit-only accounts

  Transactions may now specify whether a program is permitted to debit an account, even if a signer. Next to come: parallel execution of credits.

• Improved stability via an overhaul of repair messages in the data plane

• Groundwork for replicators

  Significant progress was made in the development of Replicator nodes in this release. Next to come: support Replicator nodes on the public testnet.

TPS Report

Node Count	Avg TPS	Max TPS	Avg Confirmation	Max Confirmation
10	35,131	56,734	2.936	20.222
25	37,564	47,436	2.636	5.355
50	32,658	47,523	2.701	15.302
100	31,879	43,433	3.280	6.282

Performance Metrics Methodology

Additional Features and Improvements

• Ledger state hash added to votes
• Proof of History now generated by continuously hashing instead of using sleep() approximations
• Transaction forwarding performance improvements
• Pure Rust implementation of erasure coding

Known Issues

• TPS regressed

v0.14.2

• Added support for optional testnet validator registration process

v0.14.1

• Display release date in the local timezone
• Add a node-specific ip echo service to remove dependency on ifconfig.co
• Fix accounts_db storage.reset()
• Various fixes for v0.14 for large clusters

200 Node, Worldwide Testnet

Ponto v0.14.0

Major Features And Improvements

• Testnet demo with 200 nodes, crossing five continents
• Added High-TPS Decentralized Exchange demo

TPS Report

Node Count	Avg TPS	Max TPS	Avg Confirmation	Max Confirmation
10	76,048	269,574	2.288	4.46
25	72,816	273,639	2.434	10.81
50	67,843	284,950	2.687	4.83
100	43,424	191,362	3.20	8.34

Performance Metrics Methodology

Additional Features and Improvements

• Added Microsoft Azure support
• Optimize bandwidth via erasure coding

Known Issues

• Tabletops TPS not yet fully restored
• Rust crates not published to crates.io; circular dependencies

v0.13.2

Backport of two features supporting blockexplorer and solana-web3.js:

• Rename of built-in program_ids to be base58 human readable (breaking change from v0.13.1)
• Add getClusterNodes/getSlotLeader RPC API

v0.13.1

• Stability fixes for validator nodes
• Validator nodes running v0.13.0 must upgrade to v0.13.1 to participate in the beta testnet

Multi-region, multi-cloud testnet

Grandview v0.13.0

Major Features And Improvements

• Multi-region, multi-cloud testnet
• Added Testnet Participation Guide
• New consensus algorithm called Locktower fully implemented

TPS Report

Node Count	Avg TPS	Max TPS	Avg Confirmation	Max Confirmation
10	93,942	190,069	2.339	6.583
25	82,283	206,042	2.806	11.965
40	93,492	118,540	3.082	9.71

Additional Features and Improvements

• New solana-install command-line tool to easily install and upgrade validator nodes
• New solana-gossip command-line tool to test connecting a validator to the cluster
• Permissionless validator stake delegation and on-chain rewards
• New feeless transaction format; Added FeeCalculator to SDK
• Minimum transaction size reduced to 214 bytes
• User-defined smart contract errors now bubble up to JSONRPC for more informative error messages
• Faster smart contract edit-compile-test development loop with BankClient
• Command-line tools now resolve FQDNs with DNS

Breaking Changes

• Transaction format is incompatible with previous releases. Expect this in all releases until mainnet launch.

Known Issues

• Tabletops TPS not yet fully restored
• Rust crates not published to crates.io; circular dependencies
• TPS for node counts >= 50 unavailable due to cloud infrastructure limitations

v0.12.4

Bug Fixes and Other Changes

• Fix issue with account locks
• Deploy beta testnet with 100 nodes across AWS and GCP
• Support for configuring testnet nodes across multiple cloud services
• Reset PohRecorder to correct bank
• Enable leader rotation in beta testnet
• Multi-region cloud testnet

Known Issues

• Low TPS; not a focus of this release
• Rust crates not published to crates.io; circular dependencies

v0.12.3

This release fixes a few metrics bugs, mainly

1. Observed locktower counters are returning 0
2. Confirmation time are incorrect

Known Issues

• Low TPS; not a focus of this release
• Rust crates not published to crates.io; circular dependencies