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@roman-khimov roman-khimov released this 09 Jul 08:38
· 3577 commits to master since this release
v0.95.4
701a3a7

Making a fully compliant Neo node is not easy, there are lots of minuscule details that could be done in a little different way where both ways are technically correct but at the same time just different which is enough to create some interoperability problems. We've seen that with Legacy node implementation where we were functionally complete with 0.74.0 release but some fixes kept coming up to the most recent 0.78.3 version. It was a bit easier with Legacy because we already had some years-long chains to test the node against while N3 is a completely new territory.

So we'd like to thank all RC3 hackathon participants as well as all other people playing with N3 RC3 network, your joint efforts gave enough material to keep us busy fixing things for some time. The chain moving forward hit more and more edge cases with every block and this is actually very helpful, we saw a lot of things that could be improved in our node and we improved them.

Now we're releasing 0.95.4 with all of these fixes which is still RC3-compatible and it's stateroot-compatible with C# implementation up to 281K blocks. Please resynchronize to get identic testnet state. And most likely that's the last RC3-compatible release as we're moving forward to the official 3.0.0 release of C# version NeoGo will be updated with appropriate changes some of which are not compatible with RC3).

New features:

  • 'sysgas' parameter for invocation and transfer CLI commands to manually add some system fee GAS (#2033)

Behavior changes:

  • contract calls are now checked against specified permissions by the compiler (#2025)
  • stack items with nesting levels of 10 and more won't be serialized to JSON for purposes like including them into RPC call reply (#2045)

Improvements:

  • AddHeaders() with multiple headers added at the same time now works with StateRootInHeader option (#2028)
  • cached GAS per vote value leads to substantially improved block processing speed (#2032)
  • failed native NEP17 transfers now still re-save the old value to the storage making state dumps compatible with C# (#2034)
  • refactored and renamed some stackitem package functions, added proper error values in all cases (#2045)
  • RPC calls (and application logs) can now return real serialization errors if there are any (previously all errors were reported as "recursive reference", #2045)
  • better tests (#2039, #2050)

Bugs fixed:

  • wrong onNEP11Payment name in contract configuration examples (#2023)
  • missing permission sections in contract configuration examples (#2023)
  • buffer stack item deserialization created byte string (#2026)
  • Extra contract manifest field serialization was reworked to match C# implementation more closely (#2021)
  • wildcard permission in manifest allowed any methods, while it shouldn't (#2030)
  • group permission in manifest worked incorrectly for a set of groups (#2030)
  • call flags were JSONized in incompatible way (#2041)
  • MPT update left branch nodes with 1 child in some cases (#2034, #2047)
  • JSON marshalling code for stack items detected item recursion in some cases where no actual recursion was present (#2045)
  • binary serialization code for stack items could overwrite old errors in some cases (#2045)
  • binary serialization code for stack items wasn't ensuring maximum size limit during serialization which could lead to OOM (#2045)
  • batched MPT update create excessive extension nodes for the last child of branch node in some cases (#2047)
  • in some cases "TCP accept error" was logged during node shutdown (#2050)
  • contract updating code was updating caches before they should've been updated (#2050)
  • INVERT/ABS/NEGATE unary operations were not copying their arguments (#2052)
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