Add changelog entry

(cherry picked from commit ebc56f8)

# Conflicts:
#	CHANGELOG.md

CHANGELOG.md

@@ -4,6 +4,84 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+<<<<<<< HEAD
+=======
+## [21.4.3] - Unreleased
+### Added
+- Add nasl function sftp_enabled_check() to check if sftp subsystem is enabled in the target.
+  - Backport [#853](https://github.com/greenbone/openvas/pull/853)
+  - Backport [#862](https://github.com/greenbone/openvas/pull/862)
+  - Add `find_all` to eregmatch() nasl function [#875](https://github.com/greenbone/openvas/pull/875)
+
+### Changed
+- Changed defaults for installation locations [#826](https://github.com/greenbone/openvas-scanner/pull/826)
+  - SYSCONFDIR is /etc by default now
+  - LOCALSTATEDIR is /var by default now
+  - OPENVAS_RUN_DIR is /run/ospd by default now
+  - OPENVAS_FEED_LOCK_PATH is /var/lib/openvas/feed-update.lock by default now
+
+### Deprecated
+### Removed
+### Fixed
+- Fix interrupted scan, when the process table is full. [#832](https://github.com/greenbone/openvas-scanner/pull/832)
+- Use fchmod to change file permission instead of on open to prevent race conditions [854](https://github.com/greenbone/openvas-scanner/pull/854)
+- Fix plugins upload [#878](https://github.com/greenbone/openvas/pull/878)
+- Fix Error Message when NVTI chache init failed [#885](https://github.com/greenbone/openvas/pull/885)
+- Fix potential segfault.[#884](https://github.com/greenbone/openvas/pull/884)
+
+[21.4.3]: https://github.com/greenbone/openvas-scanner/compare/v21.4.2...gvmd-21.04
+
+## [21.4.2] - 2021-08-03
+### Fixed
+- Fix clang-analyzer warnings.
+  [#791](https://github.com/greenbone/openvas/pull/791)
+  [#795](https://github.com/greenbone/openvas/pull/795)
+
+[21.4.2]: https://github.com/greenbone/openvas-scanner/compare/v21.4.1...v21.4.2
+
+
+## [21.4.1] - 2021-06-23
+
+### Added
+- Improve nasl linter to catch more cases of undeclared variables. [#728](https://github.com/greenbone/openvas-scanner/pull/728)
+- Add deprecation warning for source_iface related settings which will be removed with the 21.10 release. [#732](https://github.com/greenbone/openvas-scanner/pull/732)
+- New Credentials for SSH to get su privileges. Backport of [#744](https://github.com/greenbone/openvas-scanner/pull/744). [#753](https://github.com/greenbone/openvas-scanner/pull/753)
+
+### Changed
+- Update default log config [#711](https://github.com/greenbone/openvas-scanner/pull/711)
+
+### Fixed
+- Use host from the original hosts list when boreas is enabled. [#725](https://github.com/greenbone/openvas/pull/725)
+- Initialize the the kb to store results for openvas-nasl [#735](https://github.com/greenbone/openvas/pull/735)
+- Fix unittest. Mock kb_lnk_reset. [#748](https://github.com/greenbone/openvas/pull/748)
+
+[21.4.1]: https://github.com/greenbone/openvas/compare/v21.4.0...v21.4.1
+
+## [21.4.0] - 2021-04-15
+
+### Added
+- Add scanner-only option to enable tls debugging. [#558](https://github.com/greenbone/openvas/pull/558)
+- Extend nasl lint to detect if function parameter is used twice. [#585](https://github.com/greenbone/openvas/pull/585)
+- Add option to specify if a host can be scanned through its IPv4 and IPv6 in parallel.
+  [#604](https://github.com/greenbone/openvas/pull/604)
+  [#645](https://github.com/greenbone/openvas/pull/645)
+- Add insert_tcp_options and insert_tcp_v6_options nasl functions. [#618](https://github.com/greenbone/openvas/pull/618)
+- Add get_tcp_option and extend dump_tcp_packet nasl functions. [#621](https://github.com/greenbone/openvas/pull/621)
+- Add new scanner only option for spawning NASL functions with a different owner. [#634](https://github.com/greenbone/openvas/pull/634)
+- Add debug logs for allow_simultaneous_ips=no. [#685](https://github.com/greenbone/openvas/pull/685)
+- Add min_free_mem and max_sysload scanner only options. [#690](https://github.com/greenbone/openvas/pull/690)
+
+### Changed
+- Store results in main_kb instead of host_kb. [#550](https://github.com/greenbone/openvas/pull/550)
+- Also use internal function name in some nasl log messages. [#611](https://github.com/greenbone/openvas/pull/611)
+- Move more scanner preferences to gvm-libs to make them available for openvas-nasl. [#614](https://github.com/greenbone/openvas/pull/614)
+
+### Removed
+- Use the nvticache name from gvm-libs, defined in nvticache.h. [#578](https://github.com/greenbone/openvas/pull/578)
+
+[21.4.0]: https://github.com/greenbone/openvas/compare/openvas-20.08...v21.4.0
+
+>>>>>>> ebc56f8d (Add changelog entry)
 
 ## [20.8.4] (unreleased)
 ### Added