### ClickHouse release v21.11.3.6-stable FIXME as compared to v21.11.2.2-stable

#### Bug Fix
* Backported in [#31246](https://github.com/ClickHouse/ClickHouse/issues/31246): Memory amount was incorrectly estimated when ClickHouse is run in containers with cgroup limits. [#31157](https://github.com/ClickHouse/ClickHouse/pull/31157) ([Pavel Medvedev](https://github.com/pmed)).

#### Bug Fix (user-visible misbehaviour in official stable or prestable release)

* Backported in [#31206](https://github.com/ClickHouse/ClickHouse/issues/31206): Fix possible assert in `hdfs` table function/engine, add test. [#31036](https://github.com/ClickHouse/ClickHouse/pull/31036) ([Kruglov Pavel](https://github.com/Avogar)).
* Backported in [#31202](https://github.com/ClickHouse/ClickHouse/issues/31202): Fix abort in debug server and `DB::Exception: std::out_of_range: basic_string` error in release server in case of bad hdfs url by adding additional check of hdfs url structure. [#31042](https://github.com/ClickHouse/ClickHouse/pull/31042) ([Kruglov Pavel](https://github.com/Avogar)).