Merge pull request argotorg#13996 from ethereum/set-release-date-for-…

…0.8.19

Set release date for 0.8.19

Merge pull request argotorg#13913 from ethereum/changelog-v0.8.18

Sort changelog for 0.8.18 alphabetically

Merge pull request argotorg#13502 from ethereum/finalize-release-0.8.17

Finalize release 0.8.17

Merge pull request argotorg#13358 from ethereum/set-release-date-0.8.16

Set release date for 0.8.16 and update the bug list

Merge pull request argotorg#13151 from ethereum/setreleasedatefor0815

Set release date for 0.8.15.

Merge pull request argotorg#13034 from ethereum/setreleasedatefro0814

Set release date.

Merge pull request argotorg#12801 from ethereum/cse-optimization

CSE optimization

Merge pull request argotorg#12682 from ethereum/setreleasedatefor0812

Set release date.

Merge pull request argotorg#12426 from ethereum/setDateFor0811

Set release date for 0.8.11

Merge pull request argotorg#12255 from ethereum/setReleaseDate

Sort changelog and set release date.