Changes

support protocol version 0.12
(by @fmoor in 5ce52ed)
Update to protocol version 0.13
(by @1st1 in c690250, 8by @fmoor in 5ce52ed, by @jaclarke in a5a6218 for #253)
Lookup edgedb.toml recursively in parent directories
(by @fmoor in d9a12b8 for #245)
Update connection parameter resolution
(by @jaclarke in 085f574 for #241)
Implement EDGEDB_CLIENT_SECURITY
(by @fmoor in ac46c37)
Add optional/required query_single* methods + rename retrying_transaction + update pool to create_client API
(by @jaclarke in f2ae0d0 for #249)

Deprecations

Deprecate Pool.acquire() and Pool.release()
(by @fmoor in 2d501e9 for #217)
Rename tls_verify_hostname to tls_security
(by @fmoor in 2086b86)

Do not attempt to del transport in connection_lost if it has been already
(by @elprans in c719e79 for #215)
Retry if start() raises a retryable error (#228)
(by @fantix in ffaae01 for #228)
Fix broken pool connection cleanup
(by @fantix in be44959 for #222)
Fix deprecated usage of SSLContext (#231)
(by @elprans in f73f999 for #231)
Bugfix: _borrowed_for is now set entering a transaction (#233)
(by @fantix in bf763d1 for #233)
Send zero arguments as zero-length bytes in proto 0.12 (#238)
(by @tailhook in f51dd51 for #238)
Fix retrying_transaction() on network errors
(by @fmoor in cc001e6)
Fix connection and retry options on AsyncIOPool (#237)
(by @tailhook in 44e279f for #237)
Auto retry read-only queries outside transactions (#243)
(by @fmoor in 76bb586 for #243)
Fix credentials_file argument typo on async_connect (#252)
(by @mkniewallner in b21b70a for #252)