First-draft release notes for 15.4.
As usual, the release notes for other branches will be made by cutting
these down, but put them up for community review first.
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/c6344d7686f3e3c8243c2c6771996cfc63e71eae
Modified Files
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doc/src/sgml/release-15.sgml | 1030 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 1030 insertions(+)
