Changes between #6098 and #6099

#6099 (Feb 5, 2022, 8:47:32 AM)

1. removal of 1.14 and 1.15 part 2: pom/readme update (commit: f8e13e9) — git_commits / detail
2. removal of 1.14 and 1.15 part 3: todos and version checks (commit: bf8e23b) — git_commits / detail