Polkadot v0.9.13-rc1

⚠️ This is a pre-release

Release candidates are pre-releases may not be final. Although they are reasonably tested, there may be additional changes or issues before an official release is tagged. Use at your own discretion, and consider only using published releases on critical production infrastructure.

Upgrade priority: Medium (timely upgrade recommended) due to changes: Limit the number of PVF workers (#4273), Update CI image to the latest rustc (paritytech/substrate#10142)

Native runtimes:

• Polkadot: 9130
• Kusama: 9130
• Westend: 9130

This release was tested against the following versions of rustc. Other versions may work.

• Stable: rustc 1.56.1 (59eed8a2a 2021-11-01)
• Nightly: rustc 1.58.0-nightly (46b8e7488 2021-11-07)

WASM runtimes built with srtool v0.9.17 using rustc 1.53.0 (53cb7b09b 2021-06-17).

Proposal hashes:

• polkadot_runtime-v9130.compact.compressed.wasm: 0x5709431e16c4559b4c9ebe49330256a9678b158f22e49dc07cdec455ecea320f
• kusama_runtime-v9130.compact.compressed.wasm: 0x3b667ecb29df4d3b89db64610bdaa39f89b228bb05f6ac32eb94b1df74917093

Changes

• Limit the number of PVF workers (#4273)
• Increase preparation timeout (#4270)
• Per subsystem CPU usage tracking (#4239)
• remove duplicate Deposit from OnUnbalanced implementation (#4180)
• polkadot: remove call filters on registrar pallets (#4093)

Client

• Add group name in task metrics (paritytech/substrate#10196)
• Add a trie_root_hash variant for chain specs genesis (paritytech/substrate#10140)
• Don't print "Discovered new external" line for private IPs (paritytech/substrate#10055)
• Removal of light client from substrate (paritytech/substrate#9684)

Runtime

• ⏳ pending non-critical audit Enable full use of pallet-bags-list in westend and kusama runtimes (#4195)
• ✅ not live Allow Queries and Subscriptions (#4150)
• ⏳ pending non-critical audit Fix XCM Teleport Benchmark (#4146)
• ✅ not live Fix weights on hard-coded XCM fragments (#4144)
• ✅ audited Enable bags-list pallet in polkadot (#4080)
• ✅ trivial Introduce new Runtime API endpoint for fetching the validation data (#3728)
• ⏳ pending non-critical audit rework staking::reap_stash (paritytech/substrate#10178)
• ✅ not live contracts: Fix account counter isn't persisted (paritytech/substrate#10112)
• ✅ trivial Kill the light client, CHTs and change tries. (paritytech/substrate#10080)
• ❌ AWAITING AUDIT implement dispatch_as (paritytech/substrate#9934)
• ✅ not live Add Baseline FRAME Benchmarks (paritytech/substrate#9691)