- Lazy loading of dependencies to lower memory footprint and to make services launch quicker as they usually don't use all built-in implementations. Reference services launch noticeable faster now.
- Optimizations and refactoring of middleware for all service function calls of all built-in invokers, saving somewhere around 10-20% on CPU time in average.
- Improvements to awaiting open keep-alive connections when terminating a service for a lower chance of interrupting last second incoming requests over the connection.
- New option: `http.max_keepalive_requests`. An optional number (int) of requests which is allowed for a keep-alive connection. After the specified number of requests has been done, the connection will be closed. A value of `0` or `None` (default) will allow any number of requests over an open keep-alive connection.
- New option: `http.max_keepalive_time`. An optional maximum time in seconds (int) for which keep-alive connections are kept open. If a keep-alive connection has been kept open for more than `http.max_keepalive_time` seconds, the following request will be closed upon returning a response. The feature is not used by default and won't be used if the value is `0` or `None`. A keep-alive connection may otherwise be open unless inactive for more than the keep-alive timeout.
- Improved type hint annotations for invoker decorators.
- Preparations to be able to loosen dependencies and in the future make the related packages into optional extras instead.
- Printed hints (in development) on missing packages that haven't been installed or couldn't be imported and in turn causing fatal errors.