v3.0.0+solana

v3.0.0+solana adds several new features to the NTT Solana implementation:

• Solana Multi-Transceiver support
• SPL Multisig support
• Ability to transfer mint authority after deployment
• Ability to update peers
• Smaller enhancements & optimizations

The Solana smart contracts for this release were audited by Ottersec. The reports can be found here:

• https://github.com/wormhole-foundation/wormhole-audits/blob/main/2025-04-18-wormhole-ottersec-ntt-v3.pdf
• https://github.com/wormhole-foundation/wormhole-audits/blob/main/2025-05-05-wormhole-ottersec-ntt-v3-solana.pdf

What's Changed

• solana: Multi Transceiver Support by @nvsriram in #528
• solana: make peers upgradable by @evgeniko in #559
• solana: Allow transferring mint authority by @nvsriram in #570
• solana: Add SPL multisig support by @nvsriram in #568
• solana: Handle transferring mint authority using SPL Multisig by @nvsriram in #587
• solana: Add set_threshold ix by @nvsriram in #589
• solana: Update documentation for v3.0.0 changes by @nvsriram in #592
• solana: Remove *_multisig instruction variants by @nvsriram in #593
• solana: Fix rate limit reset on peer upgrade by @nvsriram in #607
• solana: Make initialize_lut instruction permissioned by owner by @nvsriram in #608
• solana: Skip upgrade authority CPI if current owner is upgrade_lock by @nvsriram in #617
• solana: Have written_size match actual size written for TransceiverMessage, WormholeTransceiverInfo, and WormholeTransceiverRegistration by @nvsriram in #621
• solana: Prevent rent_payer from being overwritten in consecutive set_token_authority calls by @nvsriram in #614
• solana: Remove unused transceiver account in DeregisterTransceiver struct by @nvsriram in #616
• solana: Ensure SetPeerArgs.chain_id != config.chain_id in set_peer by @nvsriram in #615

Full Changelog: v2.1.0+solana...v3.0.0+solana