* master:
  Bump smallvec from 1.4.2 to 1.5.0 (#1971)
  Companion PR for substrate#7549 (#1967)
  Bump parking_lot from 0.11.0 to 0.11.1 (#1970)
  Connect to different validators on different leaves (#1966)
  patches (#1965)
  Bump dlmalloc from 0.1.4 to 0.2.1 (#1962)

* master:
  base priority on client changes only (#1969)

* master:
  A simple check to reject obviously wrong validation code binaries (#1989)
  fix approval keytypes doc (#1988)
  add max_pov_size to runtime config and PersistedValidationData (#1984)
  Bump env_logger from 0.8.1 to 0.8.2 (#1981)
  Bump pin-project from 1.0.1 to 1.0.2 (#1982)

* master:
  Improve collator side of the collator-protocol (#1955)
  add parity-keyring to install instructions (#1993)
  sane messaging defaults (#1994)
  cleanup validator discovery (#1992)
  Add Prometheus timers to the subsystems (#1923)
  Add tracing support to node (#1940)

* master:
  overseer: send_msg should not return an error (#1995)
  Bump async-trait from 0.1.41 to 0.1.42 (#1996)

* master:
  backing: reorder votes to match bitfield in backed candidate (#2006)
  Switch to wasm-builder 3.0.0 (#2004)
  Make sure we inform statement listeners about received statements (#1999)
  Update docker.md (#2000)
  Bump tracing from 0.1.21 to 0.1.22 (#2001)
  Bump assert_cmd from 1.0.1 to 1.0.2 (#2003)
  Bump color-eyre from 0.5.7 to 0.5.8 (#2002)
  *: Update authority discovery and remove WorkerConfig (#1953)
  companion for substrate#7546 (#1954)

Co-authored-by: Sergei Shulepov <sergei@parity.io>

…essions

* ao-session-info:
  runtime/session_info: define the keys
  runtime/session_info: add a comment about missing entries
  Update runtime/parachains/src/session_info.rs

* master:
  Some code cleanup in overseer (#2008)
  PoV Distribution optimization (#1990)
  Approval Distribution Subsystem (#1951)
  Session management for approval voting (#1973)
  Do not send messages twice in bitfield distribution (#2005)