Network upgrade notifications
Solana Upgrades
Track network changes, validator actions, client support, and rollout status for Solana protocol and performance upgrades.
Agave 4.4
PlannedExpected November 2026Agave 4.3
PlannedExpected October 2026Agave 4.2
ShippedAugust 2026Live on Mainnet
Agave 4.2 Release Overview
Cheaper rent, larger transactions, and faster slots — with Alpenglow on deck
90%
Rent reduction, phased over 5 steps
4096
Bytes per transaction, up from 1232
View details
Partially Activated
Reduced Slot Times
Cutting slot times from 400ms to 200ms
200ms
Target slot time, down from 400ms
300ms
Current mainnet slot time
View details
Partially Activated
Reduced Rent
Cutting the cost of on-chain storage by 90%
90%
Rent reduction, phased over 5 steps
696
Target lamports per byte, down from 6,960
View details
Live on Mainnet
Larger Transaction Sizes
The maximum transaction size is now 4096 bytes, up from 1232
4096
Bytes per transaction, up from 1232
3.3x
More room for ZK proofs, multisigs, and batches
View details
Agave 4.1
ShippedMay 2026Live on Mainnet
100M CU Blocks
Raising Solana's block limit from 60M to 100M compute units
100M
Compute units per block, up from 60M
66%
Increase in block capacity
View details
Live on Mainnet
BLS Pubkey and the Validator Admission Ticket
The VAT feature gate is live on mainnet, register a BLS pubkey to stay in consensus
2,000
Max validators admitted under VAT
1.6 SOL
VAT fee, after full alpenglow migration
View details
Live on Mainnet
New Cryptography Schemes
Native syscalls for BN254 G2 and BLS12-381 curve operations
10-20x
Lower compute vs pure-BPF implementations
128-bit
Security level with BLS12-381
View details
Live on Mainnet
XDP on Solana
Kernel-bypass networking for faster block propagation on Solana
200x
Latency Reduction vs. Standard Networking
100M
Compute Units per Block (Enabled by XDP)
View details
Live on Mainnet
Optimized Token Program
Up to 98% More Efficient Token Operations on Solana
95-98%
Reduction in Compute Units
10%
More Total Block Space
View details
Agave 4.4
PlannedExpected November 2026| Upgrade | Key metric | Status |
|---|---|---|
| sBPFv3 Programs Simplifying and modernizing the Solana runtime and program deployments | v3 Minimum sBPF deployment target | In Development |
Agave 4.3
PlannedExpected October 2026| Upgrade | Key metric | Status |
|---|---|---|
| Alpenglow Solana's next consensus protocol delivers sub-second finality | ~150ms Target finality, down from 12.8 seconds | In Development |
Agave 4.2
ShippedAugust 2026Release overview
Cheaper rent, larger transactions, and faster slots — with Alpenglow on deck
90%
Rent reduction, phased over 5 steps
4096
Bytes per transaction, up from 1232
200ms
Slot times, down from 400ms
| Upgrade | Key metric | Status |
|---|---|---|
| Reduced Slot Times Cutting slot times from 400ms to 200ms | 200ms Target slot time, down from 400ms | Partially Activated |
| Reduced Rent Cutting the cost of on-chain storage by 90% | 90% Rent reduction, phased over 5 steps | Partially Activated |
| Larger Transaction Sizes The maximum transaction size is now 4096 bytes, up from 1232 | 4096 Bytes per transaction, up from 1232 | Live on Mainnet |
Agave 4.1
ShippedMay 2026| Upgrade | Key metric | Status |
|---|---|---|
| 100M CU Blocks Raising Solana's block limit from 60M to 100M compute units | 100M Compute units per block, up from 60M | Live on Mainnet |
| BLS Pubkey and the Validator Admission Ticket The VAT feature gate is live on mainnet, register a BLS pubkey to stay in consensus | 2,000 Max validators admitted under VAT | Live on Mainnet |
| New Cryptography Schemes Native syscalls for BN254 G2 and BLS12-381 curve operations | 10-20x Lower compute vs pure-BPF implementations | Live on Mainnet |
| XDP on Solana Kernel-bypass networking for faster block propagation on Solana | 200x Latency Reduction vs. Standard Networking | Live on Mainnet |
| Optimized Token Program Up to 98% More Efficient Token Operations on Solana | 95-98% Reduction in Compute Units | Live on Mainnet |