Release Notes

Use this page for Zink changes that affect developers, operators, or bridge integrators. Keep entries factual, dated, and action-oriented; this is not a marketing changelog.

What belongs here

Publish updates that change how someone builds on, operates, or integrates with Zink, for example:

• validator/runtime version upgrades
• RPC endpoint changes
• bridge route launches, freezes, or threshold changes
• program-ID changes
• breaking operational guidance changes
• major docs corrections affecting deployment or bridge usage

Entry format

Each release note should include the impact first, then the details needed to act.

Version / date

• date
• Zink environment(s) affected
• upstream Agave/Solana version if relevant

Summary

• what changed
• who it affects
• whether action is required

Operator action

• validator upgrade required or not
• RPC restart required or not
• bridge operator action required or not

Developer action

• SDK/client change required or not
• program redeploy/retest required or not

Example skeleton

## 2026-04-21 — Example release

**Applies to:** Zink mainnet, Zink Testnet  
**Upstream base:** Agave x.y.z

### Summary
- Updated validator runtime
- No program interface changes
- New RPC endpoint published for devnet

### Operator action
- Upgrade validator binaries before YYYY-MM-DD
- No vote-account changes required

### Developer action
- Reconfirm deployment scripts against the new devnet endpoint

Zink recommendation

Before changing binaries, deploying programs, or opening new bridge routes, check release notes first. The useful entries are the ones that tell readers exactly what changed and whether they must act.