neo-project/neo

Remove some `IsHardFork` logic

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#4,455 opened on Jan 23, 2026

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Description

IsHardfork logic ensure that we have safe updates, but I'm sure there are some conditionals that can be removed safely and it could improve the code readability and performance.

The process of remove one of this condition is sync mainnet and testnet with and without the condition (each one) can someone make this in order to detect which conditions can be removed?

Thanks!

Contributor guide

Research direction
Identify all `IsHardFork` conditionals in the codebase, then run syncing tests on Neo mainnet and testnet with and without each conditional to determine which can be safely removed.
Tech stack
csharp
Domain
backendblockchain
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
GitC#
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35