Influxdb-client

1. [163](https://github.com/influxdata/influxdb-client-python/pull/163): Added support for Python 3.9

Features
1. [161](https://github.com/influxdata/influxdb-client-python/pull/161): Added logging message for retries

Bug Fixes
1. [164](https://github.com/influxdata/influxdb-client-python/pull/164): Excluded tests from packaging

Features
1. [152](https://github.com/influxdata/influxdb-client-python/pull/152): WriteApi supports generic Iterable type
1. [158](https://github.com/influxdata/influxdb-client-python/pull/158): Added possibility to specify certificate file path to verify the peer

API
1. [151](https://github.com/influxdata/influxdb-client-python/pull/151): Default port changed from 9999 -> 8086
1. [156](https://github.com/influxdata/influxdb-client-python/pull/156): Removed labels in organization API, removed Pkg* structure and package service

Bug Fixes
1. [154](https://github.com/influxdata/influxdb-client-python/pull/154): Fixed escaping string fields in DataFrame serialization

Features
1. [140](https://github.com/influxdata/influxdb-client-python/pull/140): Added exponential backoff strategy for batching writes, Allowed to configure default retry strategy. Default value for `retry_interval` is 5_000 milliseconds.
1. [136](https://github.com/influxdata/influxdb-client-python/pull/136): Allows users to skip of verifying SSL certificate
1. [143](https://github.com/influxdata/influxdb-client-python/pull/143): Skip of verifying SSL certificate could be configured via config file or environment properties
1. [141](https://github.com/influxdata/influxdb-client-python/pull/141): Added possibility to use datetime nanoseconds precision by `pandas.Timestamp`
1. [145](https://github.com/influxdata/influxdb-client-python/pull/145): Api generator was moved to influxdb-clients-apigen

Features
1. [112](https://github.com/influxdata/influxdb-client-python/pull/113): Support timestamp with different timezone in _convert_timestamp
1. [120](https://github.com/influxdata/influxdb-client-python/pull/120): ciso8601 is an optional dependency and has to be installed separably
1. [121](https://github.com/influxdata/influxdb-client-python/pull/121): Added query_data_frame_stream method
1. [132](https://github.com/influxdata/influxdb-client-python/pull/132): Use microseconds resolutions for data points

Bug Fixes
1. [117](https://github.com/influxdata/influxdb-client-python/pull/117): Fixed appending default tags for single Point
1. [115](https://github.com/influxdata/influxdb-client-python/pull/115): Fixed serialization of `\n`, `\r` and `\t` to Line Protocol, `=` is valid sign for measurement name
1. [118](https://github.com/influxdata/influxdb-client-python/issues/118): Fixed serialization of DataFrame with empty (NaN) values
1. [130](https://github.com/influxdata/influxdb-client-python/pull/130): Use `Retry-After` header value for Retryable error codes

Bug Fixes
1. [72](https://github.com/influxdata/influxdb-client-python/issues/72): Optimize serializing data into Pandas DataFrame

Features
1. [92](https://github.com/influxdata/influxdb-client-python/issues/92): Optimize serializing Pandas DataFrame for writing

API
1. [110](https://github.com/influxdata/influxdb-client-python/pull/110): Removed log system from Bucket, Dashboard, Organization, Task and Users API - [influxdb#18459](https://github.com/influxdata/influxdb/pull/18459), Update swagger to latest version

Bug Fixes
1. [105](https://github.com/influxdata/influxdb-client-python/pull/105): Fixed mapping dictionary without timestamp and tags into LineProtocol
1. [108](https://github.com/influxdata/influxdb-client-python/pull/108): The WriteApi uses precision from Point instead a default precision