v0.21.1

What's Changed

• Backport of VAULT-40025 Add configuration to optionally revert to pre-0.18.0 client behavior into release/vault-1.20.x by @hc-github-team-secure-vault-ecosystem in #150
• Prepare for v0.21.1 release by @roh-a in #155

Full Changelog: v0.21.0...v0.21.1