Doc: add release notes.
Branch
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V4_2_STABLE
Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=fba549d1f39adfbff3a69014ecde768e873e5772
Modified Files
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doc.ja/src/sgml/release-4.2.sgml | 209 ++++++++++++++++++++++++++++++++++++++
doc/src/sgml/release-4.2.sgml | 214 +++++++++++++++++++++++++++++++++++++++
2 files changed, 423 insertions(+)