3.5.0

This release includes the following, in sequence by first merge in group:

Feature updates:

• Support batch mode in HTTP Transport (Issue #1970, PR #1998, thanks @BBE78!)

Patch-level updates:

• Bump dependency versions (thanks @dependabot & @DABH!)
  • Bump @types/node from 16.11.12 to 17.0.8 (PR #2009)
  • Bump @babel/preset-env from 7.16.7 to 7.16.8 (#2036)
  • Bump @types/node from 17.0.8 to 17.0.9 (#2035)
  • Bump @babel/cli from 7.16.7 to 7.16.8 (#2034)
  • Bump @types/node from 17.0.9 to 17.0.10 (#2042)
  • Bump @babel/core from 7.16.7 to 7.16.12 (#2041)
  • Bump @babel/preset-env from 7.16.8 to 7.16.11 (#2040)
• Fixing documentation syntax errors in transports code examples (#1916; thanks @romanzaycev!)
• Fix missing type declarations, especially for .rejections (#1842, #1929, #2021; thanks @vanflux, @svaj, @glensc, & others!)
• More narrowly typing the “level” string (#1896, thanks @yonas-g!)
• Using a safer stringify, e.g. to avoid issues from circular structures, in the http transport (#2043, thanks @karlwir!)

Updates to the repo & project which don’t actually affect the running code:

• Add a channel for reporting security vulnerabilities (#2024, thanks @JamieSlome!)
• Add coverage tracking in CI & documentation (#2025 and #2028, thanks @fearphage!)
• Update issue templates (#2030 and #2031, thanks @maverick1872!)
• Remove gitter link from README.md (#2027, thanks @DABH!)

Thanks also to maintainers @DABH, @fearphage, @maverick1872, and @wbt for issue/PR shepherding and help across multiple parts of the release!

If somebody got missed in the list of thanks, please forgive the accidental oversight and/or feel free to open a PR on the changelog.