• Allow Enumerable for query args instead of Array (#207, thanks @lwakefield)
• Replaced deprecated splat operator (#211, thanks @BigBoyBarney)
• Fix docs typo. (#208, thanks @jphaward)
• Update formatting (#209, thanks @straight-shoota)

• Gracefully allow spec helper to fail on older crystal. (#202, thanks @bcardiff)

• (breaking-change) Deprecate DB.mapping. (#196, thanks @straight-shoota)
• (breaking-change) Drop Pool#checkout_some, make PoolStatement a struct. (#200, thanks @bcardiff)
• Simplifications and performance improvements on pool statements. (#200, thanks @bcardiff)
• Allow `prepared_statements_cache=false`` option to disable prepared statements cache. (#194, #198, thanks @bcardiff)
• Add exception cause support to PoolResourceLost and ConnectionLost constructors. (#199, thanks @lachlan)
• Fix inflight counter on ConnectionRefused. (#184, thanks @jgaskins)
• Fix max_idle_pool_size race condition. (#186, thanks @bcardiff)
• Fix DB::DriverSpecs#with_db connection_string query param support. (#192, thanks @lachlan)
• Update docs regarding ConnectionBuilder. (#188, thanks @bcardiff)
• Add reference to DB::Serializable in docs. (#197, thanks @straight-shoota)
• Add link to crystal-tds. (#193, thanks @wonderix)

Notes for driver implementors

• Use new constructors to preserve the underlying reason of a PoolResourceLost or ConnectionLost constructors (See #199)

• (breaking-change) Refactor how drivers create connections. Allow creating Database without URIs. (#181, thanks @bcardiff)
• Close a transaction when returning from within its block. (#167, thanks @jgaskins)
• Fix race conditions in multi-thread mode. (#178, thanks @bcardiff)
• Allow the use of Enums when reading a ResultSet. (#168, thanks @jgaskins)
• Fix specs for Crystal 1.4 and 1.5. (#163, #173, thanks @straight-shoota)
• Update README. (#172, #180, thanks @amauryt, @jgaskins)

Note: The breaking-change introduced in this release does not affect consumers of the library, only driver implementors.

• Fix Connection#transaction method to return the block value as the result. (#159, #160, thanks @bcardiff)
• Add DB::ColumnTypeMismatchError error with column and type information. (#156, thanks @jwoertink, @bcardiff)
• Improve DB::MappingException error. (#129, thanks @straight-shoota)
• Close connection resource when connection is lost. (#155, thanks @stakach, @bcardiff)
• Discard closed connections in the pool when they are returned. (#154, thanks @stakach)
• Fix typo in Mode.from_rs argument type. (#142, thanks @dukeraphaelng)
• Migrate CI to GitHub Actions. (#147, #152, thanks @oprypin, thanks @straight-shoota)

This release requires Crystal 1.0.0 or later.

Note: For drivers implementations #156 adds a abstract def next_column_index : Int32 to ResultSet so there is a breaking-change that does not affect consumers of the library.

• Add docs for DB::Database#setup_connection (#139, thanks @jgaskins)

• Fix mutex deadlock in setup_connection. (#128, thanks @straight-shoota)
• Add logging for executing queries. (#134, thanks @bcardiff)
• Allow DB::Pool to be used a generic connection pool. (#131, thanks @jgaskins)

This release requires Crystal 0.35.0 or later.

• Fix compatibility issues for Crystal 0.34.0. (#124, thanks @bcardiff)
• Fix readme sample. (#117, thanks @bcardiff)
• Raise DB::NoResultsError when trying to get data from an empty result (#121, #125, thanks @jwoertink, @bcardiff)