Merge pull request #147 from basecamp/fix-sgid-decoding

Try to decodde SGIDs in multiple ways

Merge pull request #122 from basecamp/unfurl-blind-ssrf

Security: disallow blind SSRF to link-local IPs via URL unfurling

Merge pull request #121 from basecamp/fix-crash-on-mentions-when-upgr…

…ading-from-rails-7-to-8

Parse Rails 7 GIDs

Set title on new releases to be the version number

Version 1.3.0

- list important changes here