CHANGELOG: release 0.91.0
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Roman Khimov
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CHANGELOG.md
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CHANGELOG.md
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This document outlines major changes between releases.
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## 0.91.0 "Ululation" (18 August 2020)
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We've updated NeoGo for 3.0.0-preview3 compatibility implementing all the
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appropriate protocol changes as well as improving NeoGo-specific
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components. This release brings with it significant changes for smart
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contracts, both in terms of Neo protocol changes (no more there is a single
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entry point! execution environment has also changed in lots of ways) and Go
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smart contract compiler updates and fixes.
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Please note that this release is incompatible with 0.90.0 and there will be no
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long-term support provided for it, Neo 3 is still changing and
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improving. If you have any wallets used with 0.90.0 release you'll need to
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regenerate them from private keys because of changes to verification scripts
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that also changed hashes and addresses.
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But nonetheless it is tested to be compatible with preview3 testnet for up to
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68K of blocks in terms of storage changes, with neo-debugger for debug data
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produced by the compiler and with consensus process for heterogeneous setups
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(like 2 neo-go CNs with 2 C# CNs).
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New features:
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* secp256k1 signature checks added to interop functions
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(Neo.Crypto.VerifyWithECDsaSecp256k1 and
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Neo.Crypto.CheckMultisigWithECDsaSecp256k1 syscalls,
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crypto.ECDsaSecp256k1Verify and crypto.ECDSASecp256k1CheckMultisig interop
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functions, #918)
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* RIPEMD160 hash added to interop functions (Neo.Crypto.RIPEMD160 syscall,
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crypto.RIPEMD160 interop function, #918, #1193)
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* "NotFound" P2P message (#1135, #1333)
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* base64 encoding/decoding interop functions (binary.Base64Encode and
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binary.Base64Decode, #1187)
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* new contract.GetCallFlags interop (System.Contract.GetCallFlags syscall)
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implemented (#1187)
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* it is possible now to create iterators and enumerators over primitive VM
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types in smart contracts (#1218)
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* runtime.Platform interop (System.Runtime.Platform syscall) is now available
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to smart contracts in Go (#1218)
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* storage.PutEx interop (System.Storage.PutEx syscall) is now available to
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smart contracts in Go (#1221)
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* exceptions support in VM (#885)
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* CLI conversion utility functions for addresses/hashes/etc (#1207, #1258)
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* multitransfer transactions now can be generated with RPC client or CLI
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(#940, #1260)
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* System.Callback.* syscalls for callback creation and execution (callback.*
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interop functions, #1197)
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* MPT implementation was added (#1235)
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* Policy native contract now also contains MaxBlockSystemFee setting (#1195)
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* getting blocks by indexes via P2P is now supported (#1192)
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* limited pointer support was added to the compiler (#1247)
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* voting support in CLI (#1206, #1286)
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Behavior changes:
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* crypto.ECDsaVerify interop function was renamed to
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crypto.ECDsaSecp256r1Verify now that we have support for secp256k1 curve
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(#918)
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* many RPC requests/responses changed names used for data fields (#1169)
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* runtime.Notify interop function now requires a mandatory UTF8 name
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parameter (#1052) and this name can be used to filter notifications (#1266)
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* sendrawtransaction and submitblock RPC calls now return a hash instead of
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boolean value in case of success (#1216)
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* System.Runtime.Log syscall now only accepts valid UTF8 strings no longer
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than 1024 bytes (#1218)
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* System.Storage.Put syscall now limits keys to 64 bytes and values to 1024
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bytes (#1221)
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* PUSHA instruction now works with relative code offset (#1226)
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* EQUAL instruction no longer does type conversions, so that values of
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different types are always unequal (#1225)
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* verification scripts now can't use more than 0.5 GAS (#1202)
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* contracts no longer have single entry point, rather they export a set of
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methods with specific offsets. Go smart contract compiler has been changed
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accordingly to add all exported (as in Go) methods to the manifest
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(but with the first letter being lowercased to match NEP-5 expections,
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#1228). Please also refer to examples changes to better see how it affects
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contracts, manifests and configuration files (#1296)
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* native contracts are now called via Neo.Native.Call syscall (#1191)
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* compressed P2P payloads now also contain their uncompressed size (#1212,
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#1255)
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* NEF files now use double SHA256 for checksums (#1203)
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* VM's map keys and contract methods now can only contain valid UTF-8 strings
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(#1198)
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* stack items now can be converted to/from JSON natively (without
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smartcontract.ContractParameters intermediate) which is now used for
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invoke* RPC calls and application execution logs (#1242, #1317)
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* invoking Policy native contracts now requires AllowsStates (to get
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settings) or AllowModifyStates (to change setting) flags (#1254)
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* Transaction now has Signers field unifying Sender (the first Signer) and
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Cosigners, a Signer can have FeeOnly or any other regular witness scope
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(#1184)
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* verification scripts no longer have access to blockchain's state (#1277)
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* governance scheme was changed to delegated committee-based one. The number
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of validators is now specified with ValidatorsCount configuration option,
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standby validators are no longer being registered by default (#867, #1300)
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* Go 1.13+ is now required to build neo-go (#1281)
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* public contract methods now always return some value and this is being
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checked by the VM (#1196, #1331, #1332)
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* runtime interop package now exports triggers as proper constants rather
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than functions (#1299)
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* RPC client no longer has SetWIF/WIF methods that didn't do anything useful
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anyway (#1328)
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Improvements:
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* Neo.Crypto.CheckMultisigWithECDsaSecp256r1 syscall is now available via
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crypto.ECDSASecp256r1CheckMultisig interop function (#1175)
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* System.Contract.IsStandard syscall now also checks script's container (#1187)
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* syscalls no longer have allowed triggers limitations (#1205)
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* better testing coverage (#1232, #1318, #1328)
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* getrawmempool RPC call now also supports verbose parameter (#1182)
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* VMState is no longer being stored as a string for application execution
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results (#1236)
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* manifest now contains a list of supported standards (#1204)
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* notifications can't be changed now by a contract after emitting them
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(#1199)
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* it is possible to call other contracts from native contracts now (#1271)
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* getnep5transfers now supports timing parameters (#1289)
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* smartcontract package now has CreateDefaultMultiSigRedeemScript that should
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be used for BFT-compliant "m out of n" multisignature script generation
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(#1300)
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* validators are always sorted now (standby validators were not previously,
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#1300)
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* debug information now contains all file names (#1295)
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* compiler now accepts directory to compile a package, only one file could be
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passed previously (#1295)
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* some old no longer used functions and structures were removed (#1303)
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* contract inspection output was improved for new Neo 3 VM instructions (#1231)
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* ping P2P message handling was changed to trigger block requests (#1326)
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Bugs fixed:
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* inability to transfer NEO/GAS from deployed contract's address (#1180)
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* System.Blockchain.GetTransactionFromBlock syscall didn't pick all of its
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arguments from the stack in some error cases (#1187)
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* System.Contract.CallEx syscall didn't properly check call flags (#1187)
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* System.Blockchain.GetContract and System.Contract.Create syscalls returned
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an interop interface instead of plain well-defined structure (#1187)
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* System.Contract.Update syscall's manifest checks were improved, return
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value was fixed (#1187)
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* getnep5balances and getnep5transfers RPC calls now support addresses in
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their parameters (#1188)
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* rare panic during node's shutdown (#1188)
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* System.Runtime.CheckWitness, System.Runtime.GetTime syscalls are only allowed to be called with
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AllowStates flag (#1218)
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* System.Runtime.GasLeft syscall result for test VM mode was wrong (#1218)
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* getrawtransaction RPC call now also returns its VM state after execution
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(#1183)
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* getnep5balances and getnep5transfers RPC calls now correctly work for
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migrated contracts (#1188, #1239)
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* compiler now generates correct code for global variables from multiple
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files (#1240)
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* compiler now correctly supports exported contracts and variables in
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packages (#1154)
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* compiler no longer confuses functions with the same name from different
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packages (#1150)
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* MaxBlockSize policy setting was not enforced (#1254)
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* missing scope check for signers (#1244)
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* compiler now properly supports init() functions (#1253, #1295)
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* getvalidators RPC call now returns zero-length array of validators when
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there are no registered candidates instead of null value (#1300)
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* events were not added to the debug data (#1311, #1315)
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* RPC client's BalanceOf method was lacking account parameter (#1323)
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* VM CLI debugging commands didn't really allow to step through the contract
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(#1328)
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* recovery message decoding created incorrect PrepareRequest payload that
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lead to consensus failures (#1334)
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## 0.90.0 "Tantalization" (14 July 2020)
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The first Neo 3 compatible release of neo-go! We've targeted to make it
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@ -7,8 +7,8 @@ functionality.
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## Versions 0.7X.Y (as needed)
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* Neo 2.0 support (bug fixes, minor functionality additions)
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## Version 0.91.0 (August 2020)
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* Neo 3.0-preview3 compatible version.
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## Version 0.92.0 (TBD, aligned with preview4 release)
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* Neo 3.0.0-preview4 compatible version.
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## Version 1.0 (2020, aligned with NEO 3.0 release)
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* full NEO 3.0 support
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