Merge pull request #14422 from ethereum/sort-changelog-for-0.8.21

Sort Changelog for 0.8.21 release

Author: nikola-matic

Diff for: Changelog.md

@@ -16,16 +16,16 @@ Compiler Features:
  * Commandline Interface: Respect ``--optimize-yul`` and ``--no-optimize-yul`` in compiler mode and accept them in assembler mode as well. ``--optimize --no-optimize-yul`` combination now allows enabling EVM assembly optimizer without enabling Yul optimizer.
  * EWasm: Remove EWasm backend.
  * Parser: Introduce ``pragma experimental solidity``, which will enable an experimental language mode that in particular has no stability guarantees between non-breaking releases and is not suited for production use.
- * SMTChecker: Add ``--model-checker-print-query`` CLI option and ``settings.modelChecker.printQuery`` JSON option to output the SMTChecker queries in the SMTLIB2 format. This requires using `smtlib2` solver only.
+ * SMTChecker: Add ``--model-checker-print-query`` CLI option and ``settings.modelChecker.printQuery`` JSON option to output the SMTChecker queries in the SMTLIB2 format. This requires using ``smtlib2`` solver only.
  * Standard JSON Interface: Add ``ast`` file-level output for Yul input.
  * Standard JSON Interface: Add ``irAst`` and ``irOptimizedAst`` contract-level outputs for Solidity input, providing AST in compact JSON format for IR and optimized IR.
- * Yul Optimizer: Remove experimental `ReasoningBasedSimplifier` optimization step.
+ * Yul Optimizer: Remove experimental ``ReasoningBasedSimplifier`` optimization step.
  * Yul Optimizer: Stack-to-memory mover is now enabled by default whenever possible for via IR code generation and pure Yul compilation.
 
 
 Bugfixes:
  * Code Generator: Disallow complex expressions whose results are types, built-ins, modules or some unassignable functions. The legacy code generation pipeline would not actually evaluate them, discarding any side-effects they might have.
- * Code Generator: Fix not entirely deterministic order of functions in unoptimized Yul output. The choice of C++ compiler in some cases would result in different (but equivalent) bytecode (especially from native binaries vs emscripten binaries)
+ * Code Generator: Fix not entirely deterministic order of functions in unoptimized Yul output. The choice of C++ compiler in some cases would result in different (but equivalent) bytecode (especially from native binaries vs emscripten binaries).
  * Commandline Interface: Fix internal error when using ``--stop-after parsing`` and requesting some of the outputs that require full analysis or compilation.
  * Commandline Interface: It is no longer possible to specify both ``--optimize-yul`` and ``--no-optimize-yul`` at the same time.
  * SMTChecker: Fix encoding of side-effects inside ``if`` and ``ternary conditional``statements in the BMC engine.