The protocol is a moving target.
Canonical improvement documents, watched upgrades, client releases, operational incidents, and official announcements—organized as a living development radar.
SIMD-0525 · Shorter slot times
A proposal to reduce target slot duration and increase network cadence.
Alpenglow migration
The staged path for moving the network from Tower BFT to Alpenglow.
Alpenglow consensus
A redesigned Solana consensus protocol targeting lower latency and simpler finality.
Agave, shipping.
Release metadata comes directly from the current Anza Agave repository. RC and alpha tags remain visually explicit.
Release v4.4.0
This is stable release recommended for general adoption.
Release v4.4.0-rc.1
This is Mainnet-beta Upgrade Candidate release recommended for 10% adoption.
Release v4.5.0-alpha.4
This is a pre-release for testing only. Do not deploy to mainnet, testnet, or any production host.
Release v4.3.2
This a stable release suitable for Testnet, Devnet and Mainnet Beta.
Release v4.4.0-beta.1
This is a testnet release.
SIMD-0685: Loader V3: Remove ExtendProgram (#685)
2026-11-02 · proposed
rekey simd-0529 big int mod exp (#715)
2026-11-01 · proposed
SIMD-0567: CU-optimized ATA Program (`p-ATA`) (#567)
2026-11-01 · proposed
SIMD-0650: bn254 pairing output (#650)
2026-10-31 · proposed
docs: align SIMD-0550 with the integer inflation schedule (#704)
2026-10-29 · proposed
Mark SIMDs as Activated (#710)
2026-10-28 · proposed