* Guide updates for disputes.

* Working availability recovery flood protection.

* More fixes.

* Formatting.

* Fix.

* Update roadmap/implementers-guide/src/node/disputes/dispute-participation.md

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

* Review remarks.

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

* node/approval-voting: Introduce Backend trait and Overlaybackend

This commit introduces a Backend trait and attempts to move away
from the Action model via an OverlayBackend as in the ChainSelection
subsystem.

* node/approval-voting: Add WriteOps for StoredBlockRange and BlocksAtHeight

* node/approval-voting: Add load_all_blocks to overlay

* node/approval-voting: Get all module tests to pass.

This commit modifies all tests to ensure tests are passing.

* node/approval-voting: Address oversights in the previous commit

This commit addresses some oversights in the prior commit.

1. Inner errors in backend.write were swallowed
2. One-off write functions removed to avoid useless abstraction
3. Touch-ups in general

* node/approval-voting: Move from TestDB to dyn KeyValueDB

This commit removes the TestDB from tests.rs and replaces it with
an in-memory kvdb.

* node/approval-voting: Address feedback

* node/approval-voting: Add license to ops.rs

* node/approval-voting: Address second-pass feedback

* Add TODO

* node/approval-voting: Bump spec_version

* node/approval-voting: Address final comments.

* node/approval-voting: Introduce framework for full subsystem tests

* node/approval-voting: Introduce basic tests to attempt to provide
coverage via full subsystem tests

* node/approval-voting: Introduce Chainbuilder

* node/approval-voting: Introduce Backend trait and Overlaybackend

This commit introduces a Backend trait and attempts to move away
from the Action model via an OverlayBackend as in the ChainSelection
subsystem.

* node/approval-voting: Add WriteOps for StoredBlockRange and BlocksAtHeight

* node/approval-voting: Add load_all_blocks to overlay

* node/approval-voting: Get all module tests to pass.

This commit modifies all tests to ensure tests are passing.

* node/approval-voting: Address oversights in the previous commit

This commit addresses some oversights in the prior commit.

1. Inner errors in backend.write were swallowed
2. One-off write functions removed to avoid useless abstraction
3. Touch-ups in general

* node/approval-voting: Move from TestDB to dyn KeyValueDB

This commit removes the TestDB from tests.rs and replaces it with
an in-memory kvdb.

* node/approval-voting: Address feedback

* node/approval-voting: Add license to ops.rs

* node/approval-voting: Address second-pass feedback

* Add TODO

* node/approval-voting: Bump spec_version

* node/approval-voting: Address final comments.

* companion for paritytech/substrate#9228

* sc_transaction_pool_api

* update Substrate

Co-authored-by: parity-processbot <>

* update benchmark

* add host function

* update Substrate

* fix unused

Co-authored-by: parity-processbot <>

* Add `canonicalize_nans` and enable `stack_depth_metering`

* Update to the latest change in the substrate PR

* Explain why the numbers are what they are.

* Update Substrate to the latest master

Co-authored-by: parity-processbot <>

* PVF: unresponsive worker doesn't mean the candidate is bad

* s/if let Some/.is_some

* patch branch

* patch bis

* Add missing client method.

* unpatch

* update Substrate

Co-authored-by: parity-processbot <>

* migrate to FrameV2

* kusama & westend change pallet name

* keep item private

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>

* DB skeleton

* key formats

* lexicographic test

* custom types for DB

* implement backend for db-v1

* remove VoidBackend and integrate with real DbBackend

* detect stagnant blocks on in interval

* fix tests

* add tests for stagnant

* send ChainSelectionMessage::Approved

* tests for DB backend

* unused import

* upgrade kvdb-memorydb

Co-authored-by: Andronik Ordian <write@reusable.software>

* update all weights

* add run_all_benches.sh

* bridges in W<>R

* fix node compilation

* Update runtime/rococo/src/bridge_messages.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* Update runtime/rococo/src/bridge_messages.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* Update runtime/rococo/src/bridge_messages.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* Update runtime/rococo/src/bridge_messages.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* long line fix

* comment/remove -> comment/#[ignore]

* explicit instances

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* to v2 macro

* line width

* fix mock

* actually compile moxk

* compile tests

* add hooks

* origin back in mocks

* assimilate_storage

* add generic

* maybe mock compiles now

* origin between parachain and system causing problem

* change origin

* type alias as origin

* keep origin

* add aliases to tests

* remove unnecessary imports

* Parachain -> Paras

* paras test

* nvm

* use genesis build in mock

* add missing bridges logging target

* trace send_xcm

* trace execute_xcm

* trace calls in xcm-executor

* trace tuple implementations of xcm traits

* update cargo.lock

* remove bridge log target

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* log argument formatting

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Use MaxEncodedLen trait from new parity-scale-codec v2.2

* update Substrate

Co-authored-by: parity-processbot <>

* bump a bunch of deps in parity-common

* update Substrate

* fix browser check

Co-authored-by: parity-processbot <>

* Warn on low connectivity.

* Better timeout and docs.

* Review remarks.

This is useful for tests where something is failing :D

* make it easier to dbg

* revert channel sizes

* BAnon

* canonicalize + prepend_with fix

* fix doc

* not needed

* better docs, and more deterministic logic

* one more test

* Update xcm/src/v0/multi_location.rs

* Update multi_location.rs

Co-Authored-By: parity-processbot <>

* follow style guide

Co-Authored-By: parity-processbot <>

* oops

* Update xcm/src/v0/multi_location.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* Update xcm/src/v0/multi_location.rs

Co-authored-by: Robert Habermeier <rphmeier@gmail.com>

* metered-channel: remove dead code

* we don't need no fuse

* even more

Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
Co-authored-by: Peter Goodspeed-Niklaus <peter.r.goodspeedniklaus@gmail.com>

* Companion

* Update branch

* Update to correspond to substrate fixes

* Update cargo.lock

* Remove patches

* update Substrate

Co-authored-by: parity-processbot <>

* bump version

* bump substrate

* bump spec_versions

* minro refactor

* Update node/core/runtime-api/src/lib.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Update node/core/runtime-api/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* update name

* update Substrate

Co-authored-by: parity-processbot <>

* Companion for Decouple Staking and Election - Part 3: Signed Phase

https://github.com/paritytech/substrate/pull/7910

* remove some config types

* allow up to 5 signed submissions on polkadot and kusama

* signed phase is equal induration to unsigned phase

* use chain defaults for base and per-byte deposits; >= 16 SignedMaxSubmissions

* use a small but non-trivial solution reward

* reduce signed deposit per byte fee

* reduce signed reward, adjust polkadot expected soln size

* copy submit benchmark from substrate

* demo calculating an appropriate fee for the signed reward

Unfortunately, this doesn't work: it needs to be a constant function,
and AFAIK there's no way to make a trait method constant.

* SignedRewardBase is 1.5x the fee to submit a signed solution

* all chains use deposit byte of base per 50k

* update Substrate

* cargo update -p pallet-election-provider-multi-phase

Co-authored-by: parity-processbot <>

* Ensure that we fetch another collation if the first collation was invalid

* Feedback

* Only send one collation per relay parent at a time to validators

This changes the way we are sending collations to validators. Before we
answered every collation request immediatley. Now we only answer one
pov request at a time per relay parent. This should bring down the
bandwidth requirements and should help parachains to include bigger
blocks more easily.

* Guide updates

* Review feedback.

* Use wasm-builder from git

This brings new features like compressed runtimes out of the box.

* chore: update wasm builder dep. from 3.0.0 to master

* Fix tests

* Update node/core/pvf/tests/it/main.rs

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

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

23dda62 Rococo <> Wococo messages relay (#1030)
bcde21d Update the wasm builder to substrate master (#1029)
a8318ce Make target signer optional when sending message. (#1018)
f8602e1 Fix insufficient balance when send message. (#1020)
d95c0a7 greedy relayer don't need message dispatch to be prepaid if dispatch is supposed to be paid at the target chain (#1016)
ad5876f Update types. (#1027)
116cbbc CI: fix starting the pipeline (#1022)
7e0fadd Add temporary `canary` job (#1019)
6787091 Update types to contain dispatch_fee_payment (#1017)
03f79ad Allow Root to assume SourceAccount. (#1011)
372d019 Return dispatch_fee_payment from message details RPC (#1014)
604eb1c Relay basic single-bit message dispatch results back to the source chain (#935)
bf52fff Use plain source_queue view when selecting nonces for delivery (#1010)
fc5cf7d pay dispatch fee at target chain (#911)
1e35477 Bump Substrate to `286d7ce` (#1006)
7ad07b3 Add --only-mandatory-headers mode (#1004)
5351dc9 Messages relayer operating mode (#995)
9bc29a7 Rococo <> Wococo relayer balance guard (#998)
bc17341 rename messages_dispatch_weight -> message_details (#996)
95be244 Bump Rococo and Wococo spec versions (#999)
c35567b Move ChainWithBalances::NativeBalance -> Chain::Balance (#990)
1bfece1 Fix some nits (#988)
334ea0f Increase pause before starting relays again (#989)
7fb8248 Fix clippy in test code (#993)
d60ae50 fix clippy issues (#991)
75ca813 Make sure GRANDPA shares state with RPC. (#987)
da2a38a Bump Substrate (#986)
5a9862f Update submit finality proof weight formula (#981)
69df513 Flag for rejecting all outbound messages (#982)
14d0506 Add script to setup bench machine. (#984)
e74e8ab Move CI from GitHub Actions to GitLab (#814)
c5ca5dd Custom justification verification (#979)
643f10d Always run on-demand headers relay in complex relay (#975)
a35b0ef Add JSON type definitions for Rococo<>Wococo bridge (#977)
0eb83f2 Update cargo.deny (#980)
e1d1f4c Bump Rococo/Wococo spec_version (#976)
deac90d increase pause before starting relays (#974)
68d6d79 Revert to use InspectCmd, bump substrate `6bef4f4` (#966)
66e1508 Avoid hashing headers twice in verify_justification (#973)
a31844f Bump `environmental` dependency (#972)
2a4c29a in auto-relays keep trying to connect to nodes until connection is established (#971)
0e767b3 removed stray file (#969)
b9545dc Serve multiple lanes with single complex relay instance (#964)
73419f4 Correct type error (#968)
bac256f Start finality relay spec-version guards for Rococo <> Wococo finality relays (#965)
bfd7037 pass source and target chain ids to account_ownership_proof (#963)
8436073 Upstream changes from Polkadot repo (#961)
e58d851 Increase account endowment amount (#960)

git-subtree-dir: bridges
git-subtree-split: 23dda6248236b27f20d76cbedc30e189cc6f736c