ethereum/solidity v0.8.10

Version 0.8.10

on GitHub

Solidity v0.8.10 can now report contract invariants and reentrancy properties through the SMTChecker. It also contains some new optimizations with regards to external function calls and enabled the new EVM code generator for pure Yul mode.

For more details, see the release announcement.

Language Features:

• Inline Assembly: Support .address and .selector on external function pointers to access their address and function selector.

Compiler Features:

• Code Generator: Skip existence check for external contract if return data is expected. In this case, the ABI decoder will revert if the contract does not exist.
• Commandline Interface: Accept nested brackets in step sequences passed to --yul-optimizations.
• Commandline Interface: Add --debug-info option for selecting how much extra debug information should be included in the produced EVM assembly and Yul code.
• Commandline Interface: Support --asm, --bin, --ir-optimized, --ewasm and --ewasm-ir output selection options in assembler mode.
• Commandline Interface: Use different colors when printing errors, warnings and infos.
• JSON AST: Set absolute paths of imports earlier, in the parsing stage.
• SMTChecker: Output values for block.*, msg.* and tx.* variables that are present in the called functions.
• SMTChecker: Report contract invariants and reentrancy properties. This can be enabled via the CLI option --model-checker-invariants or the Standard JSON option settings.modelChecker.invariants.
• Standard JSON: Accept nested brackets in step sequences passed to settings.optimizer.details.yulDetails.optimizerSteps.
• Standard JSON: Add settings.debug.debugInfo option for selecting how much extra debug information should be included in the produced EVM assembly and Yul code.
• Yul EVM Code Transform: Switch to new optimized code transform when compiling via Yul with enabled optimizer.
• Yul Optimizer: Take control-flow side-effects of user-defined functions into account in various optimizer steps.

Bugfixes:

• Code Generator: Fix constructor source mappings for immutables.
• Commandline Interface: Disallow --error-recovery option outside of the compiler mode.
• Commandline Interface: Don't return zero exit code when writing linked files to disk fails.
• Commandline Interface: Fix extra newline character being appended to sources passed through standard input, affecting their hashes.
• Commandline Interface: Report output selection options unsupported by the selected input mode instead of ignoring them.
• Commandline Interface: When linking only accept exact matches for library names passed to the --libraries option. Library names not prefixed with a file name used to match any library with that name.
• SMTChecker: Fix internal error in magic type access (block, msg, tx).
• SMTChecker: Fix internal error in the CHC engine when passing gas in the function options.
• TypeChecker: Fix internal error when using arrays and structs with user defined value types before declaration.
• TypeChecker: Fix internal error when using user defined value types in public library functions.
• TypeChecker: Improved error message for constant variables with (nested) mapping types.
• Yul Assembler: Fix internal error when function names are not unique.
• Yul IR Generator: Do not output empty switches/if-bodies for empty contracts.

Important Bugfixes in Experimental Features:

• Yul IR Generator: Changes to function return variables referenced in modifier invocation arguments were not properly forwarded if there was more than one return variable.

Build System:

• Pass linker-only emscripten options only when linking.
• Remove obsolete compatibility workaround for emscripten builds.
• Update emscripten to version 2.0.33.

We especially thank all the contributors that made this release possible:

4molybdenum2, Adam Bliss, Alex Beregszaszi, Christian Parpart, Daniel Kirchner, David Dzhalaev, Derek Brans, Gyeonghun Park, Harikrishnan Mulackal, José López, Kamil Śliwak, Leo Arias, Leonardo Alt, Mariela Mantle, Mathias Baumann, Midhun07, Mikko Ohtamaa, MrBrain295, Saurabh Sharma, sgmoore, shikharvashistha, Shivam Rajput, soroosh-sdi, Sreekesh V, tcoyvwac, TerranCivilian, vowchick, William Entriken, Zachinquarantine

If you want to perform a source build, please only use solidity_0.8.10.tar.gz and not the zip provided by github directly.