Need versioning support for alpenglow votor messages

[alexpyattaev]

Problem

• Right now there is no way to modify/evolve the votor messages

Proposed Solution

• Add a version byte in the very beginning of the message, and make sure that it gets processed separately from the rest of the deserialization.
• As an alternative, use the TLV logic from solana-gossip crate to encode votor messages on the wire.

[wen-coding]

I assume Jump is okay with TLV because it's in Gossip already.

If we want to use that logic on votes as well, we should at least move TLV from Gossip into its own independent crate. It looks wrong for solana-votor-messages to depend on Gossip.

[alexpyattaev]

Of course, this makes sense. Jump is for sure onboard with TLV, in fact SNP is pure TLV. pe 22. elok. 2025 klo 20.16 Wen ***@***.***> kirjoitti:

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*wen-coding* left a comment (anza-xyz/alpenglow#415) <#415 (comment)> I assume Jump is okay with TLV because it's in Gossip already. If we want to use that logic on votes as well, we should at least move TLV from Gossip into its own independent crate. It looks wrong for solana-votor-messages to depend on Gossip. — Reply to this email directly, view it on GitHub <#415 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABNIL3SP23ZM63BZLMAP4N33O5F5JAVCNFSM6AAAAACESBHAEGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEMJVGA3DANBTG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[wen-coding]

Sounds good, we can consider switching to TLV after you make it an independent crate. Please add as few dependencies as possible.

[wen-coding]

@alexpyattaev assigning this to you for moving TLV to a crate, please assign back to me when that's done.