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### New Feature
* `WITH FILL` modifier for `ORDER BY`. (continuation of [#5069](https://github.com/yandex/ClickHouse/issues/5069)) [#6610](https://github.com/yandex/ClickHouse/pull/6610) ([Anton Popov](https://github.com/CurtizJ))
* `WITH TIES` modifier for `LIMIT`. (continuation of [#5069](https://github.com/yandex/ClickHouse/issues/5069)) [#6610](https://github.com/yandex/ClickHouse/pull/6610) ([Anton Popov](https://github.com/CurtizJ))
* Consider unquoted `NULL` literal as `\N` (if setting `format_csv_unquoted_null_literal_as_null=1`). Initialize null fields with default values if data type of this field is not nullable (if setting `input_format_null_as_default=1`). [#5990](https://github.com/yandex/ClickHouse/issues/5990) [#6055](https://github.com/yandex/ClickHouse/pull/6055) ([tavplubix](https://github.com/tavplubix))
* Support for wildcards in paths of table functions `file` and `hdfs`. If the path contains wildcards, the table will be readonly. Example of usage: `select * from hdfs('hdfs://hdfs1:9000/some_dir/another_dir/*/file{0..9}{0..9}')` and `select * from file('some_dir/{some_file,another_file,yet_another}.tsv', 'TSV', 'value UInt32')`. [#6092](https://github.com/yandex/ClickHouse/pull/6092) ([Olga Khvostikova](https://github.com/stavrolia))
* Implement support for INSERT query with `Kafka` tables. [#6012](https://github.com/yandex/ClickHouse/pull/6012) ([Ivan](https://github.com/abyss7))
* New `system.metric_log` table which stores values of `system.events` and `system.metrics` with specified time interval. [#6363](https://github.com/yandex/ClickHouse/issues/6363) [#6467](https://github.com/yandex/ClickHouse/pull/6467) ([Nikita Mikhaylov](https://github.com/nikitamikhaylov)) [#6530](https://github.com/yandex/ClickHouse/pull/6530) ([alexey-milovidov](https://github.com/alexey-milovidov))
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* Function `geohashesInBox(longitude_min, latitude_min, longitude_max, latitude_max, precision)` which creates array of precision-long strings of geohash-boxes covering provided area. [#6127](https://github.com/yandex/ClickHouse/pull/6127) ([Vasily Nemkov](https://github.com/Enmk))
* Added support for `_partition` and `_timestamp` virtual columns to Kafka engine. [#6400](https://github.com/yandex/ClickHouse/pull/6400) ([Ivan](https://github.com/abyss7))
* Possibility to remove sensitive data from `query_log`, server logs, process list with regexp-based rules. [#5710](https://github.com/yandex/ClickHouse/pull/5710) ([filimonov](https://github.com/filimonov))
* Throw an exception if `config.d` file doesn't have the corresponding root element as the config file. [#6123](https://github.com/yandex/ClickHouse/pull/6123) ([dimarub2000](https://github.com/dimarub2000))
* Print extra info in exception message for `no space left on device`. [#6182](https://github.com/yandex/ClickHouse/issues/6182), [#6252](https://github.com/yandex/ClickHouse/issues/6252) [#6352](https://github.com/yandex/ClickHouse/pull/6352) ([tavplubix](https://github.com/tavplubix))
### Experimental features
* Input and output data format `Template`. Template format allows specify custom format string for input and output. [#4354](https://github.com/yandex/ClickHouse/issues/4354) [#6727](https://github.com/yandex/ClickHouse/pull/6727) ([tavplubix](https://github.com/tavplubix))
@ -131,7 +130,8 @@
* Allow to `ATTACH` live views (for example, at the server startup) regardless to `allow_experimental_live_view` setting. [#6754](https://github.com/yandex/ClickHouse/pull/6754) ([alexey-milovidov](https://github.com/alexey-milovidov))
* For stack traces gathered by query profiler, do not include stack frames generated by the query profiler itself. [#6250](https://github.com/yandex/ClickHouse/pull/6250) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Now table functions `values`, `file`, `url`, `hdfs` have support for ALIAS columns. [#6255](https://github.com/yandex/ClickHouse/pull/6255) ([alexey-milovidov](https://github.com/alexey-milovidov))
* Consider unquoted `NULL` literal as `\N` (if setting `format_csv_unquoted_null_literal_as_null=1`). Initialize null fields with default values if data type of this field is not nullable (if setting `input_format_null_as_default=1`). [#5990](https://github.com/yandex/ClickHouse/issues/5990) [#6055](https://github.com/yandex/ClickHouse/pull/6055) ([tavplubix](https://github.com/tavplubix))
* Throw an exception if `config.d` file doesn't have the corresponding root element as the config file. [#6123](https://github.com/yandex/ClickHouse/pull/6123) ([dimarub2000](https://github.com/dimarub2000))
* Print extra info in exception message for `no space left on device`. [#6182](https://github.com/yandex/ClickHouse/issues/6182), [#6252](https://github.com/yandex/ClickHouse/issues/6252) [#6352](https://github.com/yandex/ClickHouse/pull/6352) ([tavplubix](https://github.com/tavplubix))
* When determining shards of a `Distributed` table to be covered by a read query (for `optimize_skip_unused_shards` = 1) ClickHouse now checks conditions from both `prewhere` and `where` clauses of select statement. [#6521](https://github.com/yandex/ClickHouse/pull/6521) ([Alexander Kazakov](https://github.com/Akazz))
* Enabled `SIMDJSON` for machines without AVX2 but with SSE 4.2 and PCLMUL instruction set. [#6285](https://github.com/yandex/ClickHouse/issues/6285) [#6320](https://github.com/yandex/ClickHouse/pull/6320) ([alexey-milovidov](https://github.com/alexey-milovidov))
* ClickHouse can work on filesystems without `O_DIRECT` support (such as ZFS and BtrFS) without additional tuning. [#4449](https://github.com/yandex/ClickHouse/issues/4449) [#6730](https://github.com/yandex/ClickHouse/pull/6730) ([alexey-milovidov](https://github.com/alexey-milovidov))