Posting this here too, may be easier to find than the mailing list. Also the dates can be edited here if necessary.
Proposed release schedule for 0.13.0:
2016-06-01
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- Open Transifex translations for 0.13
- Soft translation string freeze (no large or unnecessary string changes until release)
- Finalize and close translations for 0.11
2016-06-16
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- Feature freeze (bug fixes only until release)
- Translation string freeze (no more source language changes until release)
2016-07-06
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- Split off `0.13` branch from `master`
- Start RC cycle, tag and release `0.13.0rc1`
- Start merging for 0.14 on master branch
2016-08-01
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- Release 0.13.0 final (aim)
Original ref: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2016-March/012562.html Meeting log 2016-04-15: http://www.erisian.com.au/meetbot/bitcoin-core-dev/2016/bitcoin-core-dev.2016-04-14-19.00.log.html