1.9.0

CHANGES:

New features:

• Allow unquoted semicolons in query strings in the new API. There are
  corner cases where it is needed, as reported in issue #87, and a parser
  which rejects semicolons are still available for loading schema files
  statement by statement.

• Add support for MySQL and MariaDB configuration files, as a solution to
  issue #86.

• Add a limit to the number of times a database connection is reused when
  pooling connections (#94). Thanks to Peter Mondlock for investigating
  resource usage server side motivating this addition.

• Provide access to the raw SQLite3 connection handle for the purpose of
  defining custom functions (#56).

Fixes:

• Add missing dune dependency on unix (GPR#85 by David Allsopp).

• Documentation fixes (GPR#82, GPR#83, GPR#84 by Reynir Björnsson,
  GPR#88 by Jonathan Duarte, and GPR#92 by Jim Tittsler).

Deprecations:

• Caqti_type.field was deprecated in favour of Caqti_type.Field.t.

Other:

• Replace deprecated core_kernel dependency with core.

This release was sponsored by the OCaml Software Foundation.