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)
```
{
    int64_t nNow = GetTime();
    int64_t start_time = GetTimeMillis();
    assert(reserver.isReserved());
    uint256 block_hash = start_block;
    ScanResult result;
    WalletLogPrintf("Rescan started from block %s...\n", start_block.ToString());
    fAbortRescan = false;
    ShowProgress(strprintf("%s " + _("Rescanning...").translated, GetDisplayName()), 0); 
    uint256 tip_hash;
    
    Optional<int> block_height = MakeOptional(false, int());
    double progress_begin;
    double progress_end;
    {
        auto locked_chain = chain().lock();
        if (Optional<int> tip_height = locked_chain->getHeight()) {
            tip_hash = locked_chain->getBlockHash(*tip_height);
        }
        block_height = locked_chain->getBlockHeight(block_hash);
        progress_begin = chain().guessVerificationProgress(block_hash);
        progress_end = chain().guessVerificationProgress(stop_block.IsNull() ? tip_hash : stop_block);
    }
    double progress_current = progress_begin;
    while (block_height && !fAbortRescan && !chain().shutdownRequested()) {
        m_scanning_progress = (progress_current - progress_begin) / (progress_end - progress_begin);