Overview

Remove the *-hf ledger dependencies (from the hard-fork-test-ledger-8.0.0 tag) and all
cfg(hardfork_test) / cfg(hardfork_test_rollback) conditional compilation infrastructure.
Hard-fork e2e tests no longer require building a separate node with an older ledger version.

What was removed:

• 10 workspace *-hf crate dependencies from root Cargo.toml
• hard_fork_test module from ledger and ledger/helpers crates
• ledger/src/host_api/ledger_hf.rs (entire file)
• LedgerBridgeHf host functions from node service
• HARDFORK_TEST / HARDFORK_TEST_ROLLBACK env var handling in build scripts
• cfg(hardfork_test) branches in runtime VERSION, pallet STORAGE_VERSION, and helper utils
• hardfork_test_rollback runtime VERSION variant

🗹 TODO before merging

• Ready

📌 Submission Checklist

• Changes are backward-compatible (or flagged if breaking)
• Pull request description explains why the change is needed
• Self-reviewed the diff
• I have included a change file, or skipped for this reason:
• If the changes introduce a new feature, I have bumped the node minor version
• Update documentation (if relevant)
• Updated AGENTS.md if build commands, architecture, or workflows changed
• No new todos introduced

🧪 Testing Evidence

cargo clippy -p midnight-node-ledger -p midnight-node-ledger-helpers -p pallet-midnight passes.

• Additional tests are provided (if possible)

🔱 Fork Strategy

• Node Runtime Update
• Node Client Update
• Other:
• N/A

Links

• JIRA: https://shielded.atlassian.net/browse/PM-22109
• Closes Remove hard-fork test ledger version dependencies #1023
• PR to remove required workflows: https://github.com/shieldedtech/shielded-iac/pull/765