[ANNOUNCE] Apache NiFi MiNiFi C++ 0.13.0 release

[Ferenc Gerlits <fg...@apache.org>]

Hello,

The Apache NiFi team would like to announce the release of Apache NiFi
MiNiFi C++ 0.13.0.

New features in this release:

- New processors:
  - ListenTCP
<https://github.com/apache/nifi-minifi-cpp/blob/rel/minifi-cpp-0.13.0/PROCESSORS.md#listentcp>
  - PutTCP
<https://github.com/apache/nifi-minifi-cpp/blob/rel/minifi-cpp-0.13.0/PROCESSORS.md#puttcp>
  - PostElasticSearch
<https://github.com/apache/nifi-minifi-cpp/blob/rel/minifi-cpp-0.13.0/PROCESSORS.md#postelasticsearch>
  - CollectKubernetesPodMetrics
<https://github.com/apache/nifi-minifi-cpp/blob/rel/minifi-cpp-0.13.0/extensions/kubernetes/processors/CollectKubernetesPodMetrics.h>

- Warn on SSL certificates about to expire
- Fix cron-based scheduling
- Improve metrics reporting and add support for Prometheus
- Improve the performance of several processors (ListenHTTP, AWS, Azure, GCS)
- Support swapping out flow files from memory to disk
- Support low-memory use cases with FileSystemRepository
- Improve the MQTT processors
- Improve communication with C2, eg. add alert capability
- Fix support of native packages in Python scripting
- Fix Python scripting on Windows
- Add SSL support to the ListenSyslog and ListenTCP processors
- Fix the 32-bit build on Windows
- Support POST/PUT of large files in InvokeHTTP
- Implement communication between process groups through ports
- Plus upgrade libraries, fix issues reported by clang-tidy, fix
memory leaks etc

MiNiFi—a subproject of Apache NiFi—is a complementary data collection
approach that supplements the core tenets of NiFi in dataflow management,
focusing on the collection of data at the source of its creation.

Specific goals for the initial thrust of the MiNiFi effort comprise:

   - Small size and low resource consumption
   - Central management of agents
   - Generation of data provenance (full chain of custody of information)
   - Integration with NiFi for follow-on dataflow management

More details on Apache NiFi MiNiFi can be found here:
https://nifi.apache.org/minifi

The release artifacts can be downloaded from here:
https://nifi.apache.org/minifi/download.html

Issues closed/resolved for this list can be found here:
https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12321520&version=12351771

Release note highlights can be found here:
https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=65145325#ReleaseNotesMiNiFi(C++)-Versioncpp-0.13.0

Thank you,
The Apache NiFi team