Release checklist for 0.5.8

[hhyyrylainen]

Checklist for Thrive release (these should roughly happen in order):

• [x] 9 days before release: check open PRs to see if any is close enough to done so that they can be pushed to be finished
• [x] Ask on discord if people are up for a release podcast
• [x] Mention on discord that feature freeze has started
• [x] 7 days before release: merge open PRs from weblate (first push all pending changes from weblate)
• [x] Run scripts/update_translation_progress.rb
• [x] Make sure save upgrade steps are added (if save breakage is not planned)
• [x] Make a release candidate and post on the community forums and discord (use DevCenter file hosting for the downloads)
• [x] Upload RC also to beta channel on game stores
• [x] Post an announcement on Steam about the RC and upcoming release
• [x] Post announcement on Weblate when deadline for translations is (2 days before the release at the end of the day)
• [x] Enable the auto comment on PRs about feature freeze
• [x] Start drafting the release on Github
• [x] Post the patch notes draft on discord so that devblog can start
• [x] Get someone (or our usual trailer guy) to start working on a trailer
• [x] Make a livestream event on Youtube if there are probably enough people for it. Optional: make pre-stream questions for general audience
• [x] Make high priority questions thread for the VIP patrons
• [x] 1 day before release: merge last small fix PRs
• [x] Merge last translations PR (first push all pending changes from weblate)
• [x] Make sure trailer is ready to go
• [x] Run scripts/update_translation_progress.rb
• [x] Update credits with scripts/retrieve_credits.rb
• [x] Add save upgrade step from RC to the full release (if save breakage is not planned)
• [x] On the day of release: compile and upload builds to Github release draft
• [x] Push the release version to the stable channel for game stores
• [x] Publish the release on Github
• [x] Update the launcher repo to have the new version listed in the launcher
• [x] Publish the trailer on our Youtube channel
• [x] Publish the devblog
• [x] Post the devblog (and trailer) on our subreddit
• [x] Post on steam. Needs an 800x450 preview image
• [x] Post on Itch. Can copy-paste the first part of the devblog and link the rest
• [x] Link the release on Github to the devblog and link the trailer in the devblog
• [x] Post @everyone announcement with the devblog on community discord
• [x] After the release: turn the auto comment to Github off
• [x] Post general feedback thread on the community forums
• [x] Have the release livestream