What's New

• State Proofs: lightweight, cryptographically provable, portable proofs of Algorand state that let dapps on other blockchains trustlessly verify Algorand transactions, making it safer and easier to develop and use cross-chain products and services.
• Max TPS of 6k
  • Larger blocks: ~5x increase in max-block size (from 1MB to 5MiB), allowing up to ~25k transactions per block.
  • Shorter round times: ~0.5s reduction in average round times (approaching ~3.9s).
• AVM v7
  • On-chain randomness beacons and oracles can now be built by taking advantage the new block and vrf_verify opcodes.
  • Unfunded accounts (with 0 microalgo) can now issue transactions as long as their fees are covered by fee pooling in the transaction group.
  • App calls are now implicitly given access to the app accounts for the apps specified in the foreign apps array.

Changelog

New Features

• Algod: State Proofs (#4226)
• AVM: randomness support (#3900)
• AVM: Refactor Pseudo-ops (#4170)
• AVM: Provide access to large programs in a txn, for read and inner submit (#4148)
• Goal Network Catchup: automatically fetch catchpoint if not provided (#4012)

Enhancements

• 320 Rounds: Add logging for new logic (#4332)
• AVM: Spec updates for v7 (#4347)
• AVM: Fix crypto benchmarks from bitrot (#4340)
• AVM: Move elliptic curve math up to v8 so it doesn't get released (#4282)
• AVM: Consolidate TEAL and AVM versioning (#4269)
• AVM: Don't parallelize tests that use shared for loop var (#4253)
• Algod: rename some API operations for clarity (#4376)
• Ci: Run go vet on the entire repo (#4312)
• Ci: Add parameter to run Nightly Test (#4299)
• Cicd: add mac arm64 to integration tests (#4167)
• Cicd: upgrade xcode on circleci macos executors (#4188)
• Cicd: remove unused genesis in stash (#4155)
• Config: set MaxAcctLookback to 4 (#4296)
• Config: update vFuture consensus and configuration for 5MB blocks (#4273)
• Consensus: introduce v33, v34 (#4334)
• Crypto: remove batch verification flag (#3781)
• Docs: Control the specs generated seperately from logic.LogicVersion (#4361)
• Enhancement: Detect when valid partkeys represent an offline or closed account (#4030)
• Github-actions: add Not-Yet-Enabled and Skip-Release-Notes labels (#4196)
• Goal: Allow --signer to send txns from rekeyed accounts (#4175)
• Goal: Make the -n flag (network name) optional. Get it from template file (#4159)
• Ledger: restore pointer receivers and args from 4003 (#4239)
• Ledger: shorter deltas lookback implementation (320 rounds project) (#4003)
• Loadgenerator: add multiple accounts config option (#4321)
• Logging: Add a way to inject an external logger. (#4158)
• Metrics: Don't allocate when invoking the Inc() fastpath (#4193)
• Network: make txBacklogSize responsive to block size (#4377)
• Optimization: Use bits package for Muldiv. 266x speedup (#4210)
• Tests: extended logging on expect test abort (#4343)
• Tests: cluster scenarios for 2022-07 (#4331)
• Tests: touch fields_string.go so everything is rebuilt in codegen verification (#4330)
• Tests: Make e2e subs report individual results better (#4286)
• Tests: Fix typo in ledger_test.go (#4297)
• Tests: Support multiple e2e test archives. (#4284)
• Tests: Fail codegen_verification if dump_genesis.sh is bad (#4277)
• Tests: use T.TempDir to create temporary test directory (#4256)
• Tests: fixes to catchpoint e2e tests (#4236)
• Tests: pingpong fixes and heap watch reporting (#4069)
• Tools: adapt loadgenerator to cluster testing (#4324)
• Tools: Fixing updater to accept m1 (Darwin arm64) (#4099)

Bugfixes

• AVM: Make txn FirstValidTime and block opcode available in logicsigs (#4371)
• Algod: fix issues causing database is locked sqlite error (#4110)
• Bug Fix: Adds ephemeral Flag and Better Error messages (#4245)
• Catchup: Download StateProofVotersLookback more amount of blocks if needed (#4392)
• Catchpointdump: fix downloading logic (#4171)
• Goal: Fix source map mappings key and use relative line values (#4198)
• Ledger: fix accountsMu usage (#4280)
• Ledger: remove txtail from data race test (#4315)
• Ledger: Initialize the accountUpdatesLedgerEvaluator properly (#4456)
• Ledger: fix txtail restoring from catchpoints (#4460)
• Ledger: extend catchpoint blocks lookback (#4463)
• REST API: Change State Proof message to no longer be embedded (#4395)
• State Proofs: update state proof totals calculation (#4445)
• Tests: un-shadow loadgen privateKeys var (#4380)
• Tests: fix TestAssetValidRounds (#4351)
• Tests: fix TestAccountsCanSendMoney (#4354 #4374 #4379)
• Tests: close ledger after TestCatchupUnmatchedCertificate (#4348)
• Tests: simplify TestWebsocketNetworkMessageOfInterest (#4341)
• Tests: pass fixture by pointer instead of by value, since it contains a mutex (#4310)
• Tests: fix TestParticipationDB_Locking (#4265)
• Tests: make SP e2e tests easier for arm (#4402)
• Tests: Remove using unreleased semicolon support in AVM test
• Tests: ledger reload accessing txtail history (#4473)
• Tools: goal logging send fixes (#4281)
• Txns: Allow "empty" accounts to be Senders if someone else pays (#4151)

Activations (previously in vFuture)

• AVM: Add bn256 pairing opcodes experimentally (#4013)
• AVM: base64_decode can decode padded or unpadded encodings (#4015)
• AVM: Allow immutable access to foreign app accounts (#3994)
• AVM: Unify inner transaction ID calculation (#3927)
• AVM: replace opcodes (#4129)
• AVM: Set proper costs for json_ref (#4096)
• StateProofs: New block header field - SHA256 merkle root of the transactions (#3829)
• StateProofs: fix GetProof endpoint response (#3985)

Additional Resources

• Algorand Forum
• Developer Documentation