This sub-directory holds the saved diffs of runtime outputs produced by Parity's subxt CLI tool.

The output contents is the difference between Metadata blobs served by two running nodes - i.e. what has changed between runtime releases.

/moonbase/2800.txt will contain the difference between runtime-2800 and the previous release runtime-2700.

Pallets:
    ~ AuthorInherent
        Storage Entries:
            + InherentIncluded
    - CouncilCollective
    ~ EVM
    - LocalAssets
    + MoonbeamLazyMigrations
    ~ Multisig
        Calls:
            ~ as_multi
            ~ as_multi_threshold_1
# ... 

Where:

• + : Item added
• - : Item removed
• ~ : Item changed

For example, above you can see that AuthorInherent has changed, in that a new Storage has been added InherentIncluded. This can be verified by calling the chain state query authorInherent.inherentIncluded(). Meanwhile, LocalAssets pallet has been removed, so you would expect references to storages, extrinsics, events; to be removed.

• subxt cli readme - Some basic instructions in readme
• subxt release docs - Latest releases have usage guide for new CLI features
• polkadot metadata explorer - An interactive explorer of polkadot metadata
• substrate docs - Some background on how metadata blobs get generated with which to serve when requested.