private static LabelHistoryAdapter findReadOnlyAdapter(DBHandle handle) throws IOException {
		try {
			return new LabelHistoryAdapterV0(handle, false);
		}
		catch (VersionException e) {
		}

		return new LabelHistoryAdapterNoTable(handle);
	}
Adapter for the Label History table.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/symbol/LabelHistoryAdapter.java