diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..4efdd848
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,82 @@
+# Changelog
+
+## [1.6.0](https://github.com/ffplayout/ffplayout/compare/v0.15.2...v0.16.0) (2022-10-19)
+
+### ffplayout
+
+- add option to convert text/m3u file to playlist,fix [#195](https://github.com/ffplayout/ffplayout/issues/195), [69a3e59](https://github.com/ffplayout/ffplayout/commit/69a3e59e3548f082f68ef176acd7043ee0f06902)
+- ignore some harmless ffmpeg errors [2ebb4c6](https://github.com/ffplayout/ffplayout/commit/2ebb4c6822e5721beedb3988fbe915c229ee2f20)
+- only seek in when seek value is over 0.5 [9d094d9](https://github.com/ffplayout/ffplayout/commit/9d094d983878563960fb7fc222ce9877a583e4e9)
+- use realtime video filter only [9d094d9](https://github.com/ffplayout/ffplayout/commit/9d094d983878563960fb7fc222ce9877a583e4e9)
+- update dependencies
+- add at least anull filter [dcc4616](https://github.com/ffplayout/ffplayout/commit/dcc461642169bf2c5db812c2a806e6d64baf8101)
+-  multi audio track support, fix [#158](https://github.com/ffplayout/ffplayout/issues/158) [#198](https://github.com/ffplayout/ffplayout/issues/198), [c85e550](https://github.com/ffplayout/ffplayout/commit/c85e5503b432f1c44fcbf11870d2dfc140c65db9)
+- add filter type enum [1d11d36](https://github.com/ffplayout/ffplayout/commit/1d11d36ef9cccbdfe215adfe970e8c4219774227)
+- switch most integers to i32 [c3b5762](https://github.com/ffplayout/ffplayout/commit/c3b57622bbc19e55d203b5ee66b76ac3307fef10)
+- fix wrong log message in HLS mode: Decoder -> Encoder [8a5889b](https://github.com/ffplayout/ffplayout/commit/8a5889be3710e92d88c4ad4815cf5805a77f84c9)
+- wait for ffmpeg in validation process to be closed, fixed system zombies [8fe7b87](https://github.com/ffplayout/ffplayout/commit/8fe7b87644b5216b3a39b21264d2246ec610ee10)
+- add tests, mostly input and output parameter tests [87c508b](https://github.com/ffplayout/ffplayout/commit/87c508be541cacbbae5d9efedfb903506e573ad5)
+- add test files [87c508b](https://github.com/ffplayout/ffplayout/commit/87c508be541cacbbae5d9efedfb903506e573ad5)
+- add ProcessMode enum [61f57e2](https://github.com/ffplayout/ffplayout/commit/61f57e2f9e0498d2939f57fade0daf2efbdc2824)
+- multi audio outputs [06b5d6a](https://github.com/ffplayout/ffplayout/commit/06b5d6a2275f286f165d173b834f92e18e0514ac)
+-  fix case when video has no audio, but separate audio is set [a93440e](https://github.com/ffplayout/ffplayout/commit/a93440e06b4533689beae4dd6b07767db300757a)
+- allow loudnorm on ingest only [69b6207](https://github.com/ffplayout/ffplayout/commit/69b62071656c3d4a3ab8b0f84341c1f584d47e40)
+- use named drawtext filter instead of getting its index [84addbc](https://github.com/ffplayout/ffplayout/commit/84addbcb2a21725f2de34d2b4602ee95f1753311)
+- use filters struct for stream encoder [096c018f](https://github.com/ffplayout/ffplayout/commit/096c018fe38a0653c1dfc279775b7131584f5463)
+- unify null output [31b72db](https://github.com/ffplayout/ffplayout/commit/31b72db10640a6508ab50eca43625f04c26f2030)
+- build output filters from scratch, fix [#210](https://github.com/ffplayout/ffplayout/issues/210), [09dace9](https://github.com/ffplayout/ffplayout/commit/09dace92f4100aecfc92ad7df06f1e8b7174f690)
+- simplify prepare_output_cmd [4afba402](https://github.com/ffplayout/ffplayout/commit/4afba4028aad488d404db9b09bac3166d7f33917)
+
+### ffpapi
+
+- restructure api [ec4f5d2](https://github.com/ffplayout/ffplayout/commit/ec4f5d2ac23718aa6c3fc23f698f34a2e31b326b)
+- import playlist from text file [#195](https://github.com/ffplayout/ffplayout/issues/195), [ec4f5d2](https://github.com/ffplayout/ffplayout/commit/ec4f5d2ac23718aa6c3fc23f698f34a2e31b326b)
+
+### frontend
+
+- style scrollbar on chrome browser [8be260a](https://github.com/ffplayout/ffplayout/commit/8be260ae207d33487f51ebd8f98eb26e16298bdb)
+
+### Dokumentation
+
+- add import example
+- add new import cli parameter
+- add doc for multiple audio outputs
+- add info about experimental features
+
+## Development
+
+- use ffmpeg in action
+- run tests only on Linux
+
+## [1.5](https://github.com/ffplayout/ffplayout/compare/v0.15.0...v0.15.2) (2022-09-02)
+
+### ffplayout
+
+- validate file compression settings and filtering [9c51226](https://github.com/ffplayout/ffplayout/commit/9c5122696dc9065ff670c54abd0f87945b8865e1)
+- fix length from filler clip in playlist generator [9c51226](https://github.com/ffplayout/ffplayout/commit/9c5122696dc9065ff670c54abd0f87945b8865e1)
+- serialize values only when string is not empty [9c51226](https://github.com/ffplayout/ffplayout/commit/9c5122696dc9065ff670c54abd0f87945b8865e1)
+- compare also audio and custom filter on playlist existing check [9c51226](https://github.com/ffplayout/ffplayout/commit/9c5122696dc9065ff670c54abd0f87945b8865e1)
+- stop only when error comes not from hls segment deletion [a62c1d0](https://github.com/ffplayout/ffplayout/commit/a62c1d07c7e4f62ccd3e4158f6b5f50ee76a67cc)
+- fix unwrap error on None output_cmd [7cd8789](https://github.com/ffplayout/ffplayout/commit/7cd87896a46833996986166dff7f89421b5cfb2d)
+
+### ffpapi
+
+- get UTC offset from system [6ff34e0](https://github.com/ffplayout/ffplayout/commit/6ff34e0ddb1940aeb7b69e4d6b6f35b348a6f541)
+
+### frontend
+
+- get UTC offset from API, fix [#182](https://github.com/ffplayout/ffplayout/issues/182)
+- fix bugs related to time and playlist save [03aa2f3](https://github.com/ffplayout/ffplayout/commit/03aa2f3b01a79c93f650eeba6830be85d1293fec)
+- add edit button to playlist items [03aa2f3](https://github.com/ffplayout/ffplayout/commit/03aa2f3b01a79c93f650eeba6830be85d1293fec)
+- add custom filter to playlist item [03aa2f3](https://github.com/ffplayout/ffplayout/commit/03aa2f3b01a79c93f650eeba6830be85d1293fec)
+- better responsive control [46140b4](https://github.com/ffplayout/ffplayout/commit/46140b42839485a37127a7add8818b7f6abf8417)
+- remove perfect-scrollbar (use only browser scrollbar)
+- fix logout button in menu
+- remove escape character
+- fix browser errors when engine is not running
+
+### Dokumentation
+
+- Fix spelling in Readme
+- Add filtergraph/pipeline description
+- Add complex custom filter example
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6bd744d6..4c1a5e65 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -34,4 +34,4 @@ cargo fmt --all -- --check
 cargo clippy --all-features --all-targets -- --deny warnings
 ```
 
-And if you can provide a test, this would be wonderful.
+For bigger changes and complied new functions a test is required.
diff --git a/ffplayout-engine/src/utils/mod.rs b/ffplayout-engine/src/utils/mod.rs
index 95a6f362..1c73e396 100644
--- a/ffplayout-engine/src/utils/mod.rs
+++ b/ffplayout-engine/src/utils/mod.rs
@@ -91,9 +91,9 @@ pub fn get_config(args: Args) -> PlayoutConfig {
 ///
 /// Split filter string and add them to the existing filtergraph.
 fn process_filters(filters: &mut Filters, output_filter: &str) {
-    let re_v = Regex::new(r"(\[0:v(:[0-9]+)?\]|\[v[\w_-]+\])").unwrap();
-    let re_a = Regex::new(r"(\[0:a(:[0-9]+)?\]|\[a[\w_-]+\])").unwrap();
-    let nr = Regex::new(r"\[[\w:-_]+([0-9])\]").unwrap();
+    let re_v = Regex::new(r"(\[0:v(:[0-9]+)?\]|\[v[\w_-]+\])").unwrap(); // match video filter links
+    let re_a = Regex::new(r"(\[0:a(:[0-9]+)?\]|\[a[\w_-]+\])").unwrap(); // match audio filter links
+    let nr = Regex::new(r"\[[\w:-_]+([0-9])\]").unwrap(); // match filter link and get track number
 
     for f in output_filter.split(';') {
         if re_v.is_match(f) {
@@ -114,8 +114,8 @@ fn process_filters(filters: &mut Filters, output_filter: &str) {
 fn process_multi_in_out(filters: &mut Filters, output_filter: &str) -> Vec<String> {
     let v_map = filters.video_map[filters.video_map.len() - 1].clone();
     let mut new_filter = format!("{}{v_map}", filters.video_chain);
-    let re_v = Regex::new(r"\[0:v(:[0-9]+)?\]").unwrap();
-    let re_a = Regex::new(r"\[0:a(:(?P<num>[0-9]+))?\]").unwrap();
+    let re_v = Regex::new(r"\[0:v(:[0-9]+)?\]").unwrap(); // match video input
+    let re_a = Regex::new(r"\[0:a(:(?P<num>[0-9]+))?\]").unwrap(); // match audio input, with getting track number
     let mut o_filter = re_v.replace(output_filter, v_map).to_string();
 
     if !filters.audio_map.is_empty() {
@@ -148,8 +148,8 @@ pub fn prepare_output_cmd(
     let mut output_params = config.out.clone().output_cmd.unwrap();
     let mut new_params = vec![];
     let mut output_filter = String::new();
-    let re_map = Regex::new(r"(\[?[0-9]:[av](:[0-9]+)?\]?|-map$|\[[a-z_0-9]+\])").unwrap();
-    let re_multi = Regex::new(r"\[[\w:_-]+\]\[[\w:_-]+\]").unwrap();
+    let re_map = Regex::new(r"(\[?[0-9]:[av](:[0-9]+)?\]?|-map$|\[[a-z_0-9]+\])").unwrap(); // match a/v filter links and mapping
+    let re_multi = Regex::new(r"\[[\w:_-]+\]\[[\w:_-]+\]").unwrap(); // match multiple filter in/outputs links
 
     if let Some(mut filter) = filters.clone() {
         // Check if it contains a filtergraph and set correct output mapping.
diff --git a/lib/src/utils/config.rs b/lib/src/utils/config.rs
index 20ff567b..ca7d0674 100644
--- a/lib/src/utils/config.rs
+++ b/lib/src/utils/config.rs
@@ -19,9 +19,10 @@ pub const IMAGE_FORMAT: [&str; 21] = [
 ];
 
 // Some well known errors can be safely ignore
-pub const FFMPEG_IGNORE_ERRORS: [&str; 3] = [
-    "Referenced QT chapter track not found",
+pub const FFMPEG_IGNORE_ERRORS: [&str; 4] = [
     "ac-tex damaged",
+    "Referenced QT chapter track not found",
+    "skipped MB in I-frame at",
     "Warning MVs not available",
 ];