Release v2.0.0

[ascjones]

v2.0.0

Major release compatible with ink! 4.0.0. All the changes in aggregate since 1.5:

Added

• Add support for ink!'s version metadata field - #641
• Add Rust specific build info to metadata - #680
• Log code hash if contract is already uploaded - #805
• Add remove command - #837

Changed

• Build contracts and dylint driver with stable - #698
• Compile dylints when compiling the contract - #703
• Move transcode example to doc test, add helper method - #705
  • Note that alongside this PR we released contract-transcode@0.2.0
• Replace custom RPCs by state_call - #701
• Removed requirement to install binaryen. The wasm-opt tool is now compiled into cargo-contract - #766.
• Make linting opt in with --lint - #799
• Update to weights v2 - #809
• Update validation for renamed FFI functions - #816
• Denominated units for balances in events - #750
• Upgrade wasm-opt to 0.110.2 - #802
• Pass --features through to cargo - #853
• Remove rust toolchain channel check - #848
• Bump minimum requirement of scale-info in template to 2.3 - #847
• Remove unstable module check, add --skip-wasm-validation - #846
• Extract lib for invoking contract build - #787
• Upgrade wasm-opt to 0.111.0 #888
• Enable wasm-opt MVP features only #891
• Require env_type transcoders to be Send + Sync #879
• Extrinsics: allow specifying contract artifact directly #893
• Upgrade subxt to 0.26 #924
• Display detailed cause of an error #931
• Use package name instead of lib name, default to "rlib" #929
• Rename metadata.json to {contract_name}.json - #952
• Do not postprocess or generate metadata if contract unchanged #964
• Update subxt and substrate dependencies #968

Fixed

• Fix tracing_subscriber filtering - #702
• Sync version of transcode crate to fix metadata parsing - #723
• Fix numbering of steps during build - #715
• Skip linting if running building in --offline mode - #737
• Fix storage deposit limit encoding - #751
• Rewrite relative path for dev-dependency - #760
• Log failure instead of failing when decoding an event - #769
• Fixed having non-JSON output after calling instantiate with --output-json - #839
• add -C target-cpu=mvp rust flag to build command - #838
• Miscellaneous extrinsics display improvements #916
• Fix decoding of LangError #919
• Respect the lockfile #948
• Error if mismatching # of args for instantiate/call #966
• Pretty-print call dry-run return data #967

Removed

• Remove the test command #958

[SkymanOne]

some of changelog entries should go into Remove section

[cmichi]

🙌