Release v1.43.0 Checklist

[dmathieu]

• Complete Milestone

• Update contrib codebase to support changes about to be released (use a git sha version)
• Pre-release
• Tag
• Release
• Check examples
• Sync with Contrib
• Release contrib
• Sync website docs
• Close the milestone

_{Tip: React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it. Learn more here.}