[DISCUSS] PIP-404: Introduce per ledger properties

Hi all, I open PIP-404 to introduce per ledger properties, which will add a `properties` field to `LedgerInfo` to store extra properties for every `Ledger`. # Background knowledge As we don't have a secondary index on the Bookkeeper, so we can't query entries by message metadata efficiently. The

Re: [DISCUSS] Add an optional config to disable the feature that compresses cursor metadata, which contributed by #9292

Hi Lari > Let's start making progress: > - keep PR 9292 as default > - implement PR 23759 without changing the PR 9292 default > - write a proper upgrade guide for Pulsar 4.0 where rollback > considerations are explained > Makes sense? I do not think that it makes sense to me, there is no discuss