Overview

This consensus upgrade release brings post-quantum (Falcon-1024) account signatures, support for larger "big" transactions with per-byte fee pricing, and AVM v13. It also removes the long-deprecated dryrun REST endpoint and tealdbg tool in favor of simulate.

What's New

• Post-quantum accounts: native Falcon-1024 account signatures, PQ delegated LogicSigs, and new algokey pq commands for PQ key management
• Big transactions: larger transactions (notes up to 4KB, up to 7 extra program pages, larger LogicSigs) priced via a per-byte fee surcharge, with simulate reporting fee usage
• AVM v13: poseidon2 hash function, app_params_set, new box params and "foreign" box opcodes, variable-length branches, and automatic salting of v13 programs to avoid on-curve LogicSig hashes
• New node API: GET /v2/node/peers endpoint and goal node peers command
• Removed: dryrun and tealdbg (use simulate instead)

Protocol Upgrade

This release contains a protocol upgrade.

Indexer and conduit runners will need to update their installations to support the new consensus upgrade. You can find pre-release binaries to support BetaNet here:

Conduit:
https://github.com/algorand/conduit/releases/tag/v1.10.0-rc1

Indexer:
https://github.com/algorand/indexer/releases/tag/v3.10.0-rc2

Changelog

New Features

• AVM: poseidon2 hash function (#6560)
• Fnet: add fnet1..4 consensus versions, genesis, and docker (#6675)
• Logic: add autosalt pragma (#6653)
• Transactions: allow large lsigs with size pricing (#6637)

Enhancements

• API: Add GET /v2/node/peers endpoint and goal node peers command (#6674)
• API: Big transactions simulate fee usage (#6636)
• AVM: improve byte constant immediate reporting (#6692)
• AVM: report actual inner group fee shortfall (#6693)
• AVM: pq delegated lsig (#6663)
• AVM: app_params_set, new box params, and "foreign" box opcodes (#6596)
• AVM: auto-salt TEAL v13 programs to avoid on-curve LogicSig hashes (#6592)
• AVM: Variable length branches (#6600)
• Agreement: bump sortition dependency to v1.1.1 (#6696)
• Build: dependabot-7-28-26 (#6686)
• Build: dependabot-7-8-26 (#6660)
• Build: locate e2e test binaries via go env, not $GOPATH (#6638)
• Catchup: log early exit reason at Info level (#6655)
• Chore: Export PQSig to SDK signature.go (#6683)
• Chore: Remove dryrun and tealdbg (#6651)
• Chore: ensure heartbeat lsig is an invalid ed25519 point (#6628)
• Crypto: use batch verification for OneTimeSignature (votes, heartbeats) (#6635)
• Crypto: use specific error assertions in tests (#6543)
• Docs: Add more data to our langspec.json files (#6617)
• Eval: handle error in gload of a txn that didn't run a program (#6649)
• Eval: Big transactions (#6528)
• Falcon: sign ToBeHashed, not Hashed (#6669)
• Fees: Handle rounding of fees with non-integral usage better (#6650)
• Goal: add empty refs flag (#6633)
• Network: harden DNS bootstrap resolution and surface failures (#6652)
• Network: avoid panic on invalid fallback DNS resolver (#6654)
• Sortition: use SelectF128 (#6672)
• Tools: bump msgp to v1.1.63 (#6647)
• Tools: Default Cloudflare DNS records to 60s TTL (#6630)
• Txn: Make challenge discount explicit in HeartbeatTransaction (#6666)
• Txn: native PQ accounts (#6639)

Bugfixes

• AVM: Fix reversed costs arguments (#6695)
• AVM: fix teal disassembly for deadcode (#6594)
• Assembler: Properly perform stack type tracking for match opcode (#6618)
• Build: rebuild copied libsodium tree from scratch (#6616)
• Build: fix allocbound directive lookup (#6615)
• Goal: don't fail asset info when the reserve holds nothing (#6662)
• Txn: Check for local schema setting in update (#6682)

Additional Resources

• Algorand Forum
• Developer Portal