I am wondering when we can drop support for g++-8. All supported operating systems, except for CentOS Stream 8 offer a greater version:

* Ubuntu Focal: gcc 9 (https://packages.ubuntu.com/focal/gcc)
* Debian Bullseye: gcc 10 (https://packages.debian.org/bullseye/gcc)
* CentOS 8 Stream: gcc 8, with EOL of " May 31st, 2024 " (https://www.centos.org/centos-stream/)

The rationale for dropping it would be that there are currently occasional compile failures with perfectly valid C++-17 code, for example:

* `error: call to non-‘constexpr’ function ‘void __assert_fail(const char*, const char*, unsigned int, const char*)’ assert(false);` (https://godbolt.org/z/bxaMnfcsa)
{
    if (!index.isValid()) return Qt::NoItemFlags;
    AddressTableEntry *rec = static_cast<AddressTableEntry*>(index.internalPointer());
    Qt::ItemFlags retval = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
    
    
    if(rec->type == AddressTableEntry::Sending ||
      (rec->type == AddressTableEntry::Receiving && index.column()==Label))
    {
        retval |= Qt::ItemIsEditable;
    }
    return retval;
}
QModelIndex AddressTableModel::index(int row, int column, const QModelIndex &parent) const
{
    Q_UNUSED(parent);
    AddressTableEntry *data = priv->index(row);
    if(data)
    {
        return createIndex(row, column, priv->index(row));
    }
    else
    {
        return QModelIndex();
    }
}
void AddressTableModel::updateEntry(const QString &address,