Here is a proposed release schedule for 0.19.0, the next major release of Bitcoin Core. Like for previous major releases I've aimed for a release 6 months after the last ( #14438).

2019-09-01 :heavy_check_mark: 
---------------
- Open Transifex translations for 0.19
- Soft translation string freeze (no large or unnecessary string changes until release)
- Finalize and close translations for 0.17

2019-09-15 :heavy_check_mark: 
---------------
- Feature freeze (bug fixes only until release)
- Translation string freeze (no more source language changes until release)

2019-10-01 :heavy_check_mark: 
---------------
- Split off `0.19` branch from `master`
- Start RC cycle, tag and release `0.19.0rc1`
- Start merging for 0.20 on master branch

2019-11-03 :heavy_check_mark:
---------------
- Release 0.19.0 final (aim)

If any specific dates or timeframes are a problem for you, let me know.

**Edit:** schedule was moved two months back on 2019-05-07, for reference, the old schedule was:
```
2019-11-01    Soft translation string freeze
2019-11-15    Feature freeze
2019-12-01    Split off 0.19 branch from master
2020-01-03    Release 0.19.0 final (aim)
```
{
    std::vector<std::string> values;
    for (const auto& address : mapAddressBook) {
        for (const auto& data : address.second.destdata) {
            if (!data.first.compare(0, prefix.size(), prefix)) {
                values.emplace_back(data.second);
            }
        }
    }
    return values;
}
void CWallet::MarkPreSplitKeys()
{
    WalletBatch batch(*database);
    for (auto it = setExternalKeyPool.begin(); it != setExternalKeyPool.end();) {
        int64_t index = *it;
        CKeyPool keypool;
        if (!batch.ReadPool(index, keypool)) {
            throw std::runtime_error(std::string(__func__) + ": read keypool entry failed");
        }
        keypool.m_pre_split = true;
        if (!batch.WritePool(index, keypool)) {
            throw std::runtime_error(std::string(__func__) + ": writing modified keypool entry failed");
        }
        set_pre_split_keypool.insert(index);
        it = setExternalKeyPool.erase(it);
    }
}
bool CWallet::Verify(interfaces::Chain& chain, const WalletLocation& location, bool salvage_wallet, std::string& error_string, std::string& warning_string)