1. 2015. Extra bytes returned on revert(). https://github.com/ethereum/solidity/issues/10170
2. 2015. Overwrites when assigning to bytes elements. https://github.com/ethereum/solidity/issues/212
3. 2016. Security Alert: Variables can be overwritten in storage. https://soliditylang.org/blog/2016/11/01/security-alert-solidity-variables-can-overwritten-storage/
4. 2018. Fuzzing the Solidity Compiler. https://bshastry.github.io/2018/10/20/Fuzzing-Solidity-Compiler.html
5. 2018. Internal functions only referenced in the constructor are still included in the runtime code. https://github.com/ethereum/solidity/issues/3271