Based on package provided by Peter Czanik in PR 56406.
Changes below are for 3.34.1 only, the other 16 releases before
that are not summarized.
3.34.1
======
## Highlights
* `regexp-parser()`: new parser that can parse messages with regular expressions
* `redis()`: `workers()` and batching support
The Redis driver now support the `workers()` option, which specifies the
number of parallel workers, and the `batch-lines()` option.
This could drastically increase the throughput of the Redis destination driver.
* `mqtt()`: TLS and WebSocket Secure support
The MQTT destination now supports TLS and WSS.
## Features
* `system()` source: added support for NetBSD
* `stats`: new statistics counter
* `mqtt()`: username/password authentication
* `mqtt()`: new option `http-proxy()` for specifying HTTP/HTTPS proxy for WebSocket connections
([#3747](https://github.com/syslog-ng/syslog-ng/pull/3747))
* `syslog-ng-ctl`: new flag for pruning statistics
* `disk-buffer()`: added a new option to reliable disk-buffer: `qout-size()`.
## Bugfixes
* `network(), syslog()`: fixed network sources on NetBSD
* `disk-buffer()`: fixed a very rare case, where the reliable disk-buffer never resumed
after triggering `flow-control`.
* `disk-buffer()`: fixed a rare memory leak that occurred when `mem-buf-length()`
or `mem-buf-size()` was configured incorrectly
* `redis()`: fixed command errors that were not detected and marked as successful delivery
dec9ef9dbb