0.9.0

Issues

• Convert verbatim into a single builtin with literal arguments

  breaking change ⚠️low effortlow impactmust have eventually
  argotorg/solidity#15805 · Filter by author cameel opened on Jan 31, 2025 · 0.9.0
  3

• Turn on the optimizer by default

  breaking change ⚠️high impactlow effortoptimizerselected for development
  argotorg/solidity#13223 · Filter by author axic opened on Jun 28, 2022 · 0.9.0
  9

• NatSpec v2

  breaking change ⚠️medium effortmedium impactmust havenatspec
  argotorg/solidity#11156 · Filter by author chriseth opened on Mar 24, 2021 · 0.9.0
  7

• Disallow codecopy in pure functions (and check for other cases)

  breaking change ⚠️low effortlow impact
  argotorg/solidity#12260 · Filter by author ekpyron opened on Nov 8, 2021 · 0.9.0
  13

• Disallow virtual modifiers

  breaking change ⚠️language design low effortmedium impactmust have
  argotorg/solidity#12483 · Filter by author chriseth opened on Jan 3, 2022 · 0.9.0
  3

• [Yul] Disallow unknown objects whose names start with .

  breaking change ⚠️low effortlow impactshould have
  argotorg/solidity#11538 · Filter by author chriseth opened on Jun 15, 2021 · 0.9.0

• Drop support to block.difficulty in Solidity 0.9.0

  breaking change ⚠️low effortlow impactmust have eventually
  argotorg/solidity#13886 · Filter by author r0qs opened on Jan 23, 2023 · 0.9.0
  1

• Remove gas estimator from the compiler

  breaking change ⚠️low effortlow impactselected for development
  argotorg/solidity#13566 · Filter by author cameel opened on Sep 27, 2022 · 0.9.0
  1

• Functions that contain "unnamed return variables" should trigger a compiler error and not a warning.

  breaking change ⚠️needs design
  argotorg/solidity#14017 · Filter by author StErMi opened on Feb 25, 2023 · 0.9.0
  4

• Remove .send and .transfer.

  breaking change ⚠️high impactlanguage design low effortneeds design
  argotorg/solidity#7455 · Filter by author MicahZoltu opened on Sep 19, 2019 · 0.9.0
  37

• Reserve keywords and remove identifier exceptions for 0.9.0

  breaking change ⚠️low effortlow impactmust have eventually
  argotorg/solidity#14770 · Filter by author nikola-matic opened on Jan 9, 2024 · 0.9.0
  9

• The old optimizer breaks internal function equality

  breaking change ⚠️bug 🐛low effortmedium impactmust have eventually
  argotorg/solidity#13969 · Filter by author chatziko opened on Feb 13, 2023 · 0.9.0
  8

  

• SMTChecker: Unify keywords for showing targets

  breaking change ⚠️low effortlow impactshould havesmt
  argotorg/solidity#15372 · Filter by author blishko opened on Aug 29, 2024 · 0.9.0

• Redefine struct getters to return their struct type, not a tuple of individual fields

  breaking change ⚠️language design low effortmedium impactmust have
  argotorg/solidity#6337 · Filter by author rainbreak opened on Mar 20, 2019 · 0.9.0
  6

• Remove ABIEncoderV1

  breaking change ⚠️language design low effortmedium impactmust have eventually
  argotorg/solidity#11323 · Filter by author axic opened on Apr 27, 2021 · 0.9.0
  6

• Disallow internal function pointers in storage

  breaking change ⚠️low effortlow impactmust have
  argotorg/solidity#15794 · Filter by author cameel opened on Jan 29, 2025 · 0.9.0
  2

• [CLI] Rewrite the command line interface (solc) and consider using StandardCompiler as backend.

  high effortmedium impactmust have eventuallyrefactor
  argotorg/solidity#9583 · Filter by author ekpyron opened on Aug 6, 2020 · 0.9.0
  18

• Parse immutable as data location.

  high impactmedium effortroadmapselected for development
  argotorg/solidity#13368 · Filter by author ekpyron opened on Aug 9, 2022 · 0.9.0
  20

• [SMTChecker] Remove SMTChecker pragma

  breaking change ⚠️smt
  argotorg/solidity#15874 · Filter by author blishko opened on Feb 17, 2025 · 0.9.0
  

• Disallow isolate Unicode characters in comments and strings

  breaking change ⚠️bug 🐛low effortmedium impactmust have eventually
  argotorg/solidity#13936 · Filter by author cameel opened on Feb 6, 2023 · 0.9.0
  4

• Drop support for ancient EVM versions, i.e. for homestead

  breaking change ⚠️high impactlow effortmust have eventually
  argotorg/solidity#12246 · Filter by author ekpyron opened on Nov 5, 2021 · 0.9.0
  13

• Cannot link unqualified library names via Standard JSON

  breaking change ⚠️bug 🐛low effortlow impactneeds designnice to have
  argotorg/solidity#12145 · Filter by author cameel opened on Oct 14, 2021 · 0.9.0
  1

• Disallow trailing slashes in imports

  breaking change ⚠️low effortlow impactmust have
  argotorg/solidity#10980 · Filter by author cameel opened on Feb 19, 2021 · 0.9.0
  5

• block.coinbase should not be payable

  breaking change ⚠️low effortlow impactmust have eventually
  argotorg/solidity#10692 · Filter by author thegostep opened on Dec 25, 2020 · 0.9.0
  8

• Strengthen storage variables being unassigned now that we have inline assembly

  breaking change ⚠️low effortlow impactmust have eventually
  argotorg/solidity#9651 · Filter by author chriseth opened on Aug 21, 2020 · 0.9.0
  1