According to the last update from @steemitblog here: https://steemit.com/steem/@steemitblog/steem-19-10-officially-released-appbase-rocksdb-unlimited-content-editing-and-more
I updated my witness node and started successfully an RPC node on the v0.19.10
Then I edited an old post!
Which is published ~30 days ago
This transaction is located on the block #24,091,706 and the transaction is here: https://steemd.com/tx/32b4999b1e16cde50e9b373333aab31b0feda8ef