• Package builds: Use Golang 1.14.3 patch release
  • This fixes golang/go#37436 which was causing
    "mlock of signal stack failed: 12" on Ubuntu systems
• Switch to simpler tail library to fix edge case bugs for self-managed systems
  • The hpcloud library has been unmaintained for a while, and whilst
    the new choice doesn't have much activity, in tests it has shown
    to work better, as well as having significantly less lines of code
  • This also should make "--test" work reliably for self-managed systems
    (before this returned "Timeout" most of the time)
• Index statistics: Don't run relation_size on exclusively locked indices
  • Previously the collector was effectively hanging when it encountered an
    index that has an ExclusiveLock held (e.g. due to a REINDEX)
• Add another custom log line prefix: "%m %r %u %a [%c] [%p] "
• RDS fixes
  • Fix handling of auto-detection of AWS regions outside of us-east-1
  • Remember log marker from previous runs, to avoid duplicate log lines
• Add support for Postgres 13
  • This adds support for running against Postgres 13, which otherwise breaks
    due to backwards-incompatible changes in pg_stat_statements
  • Note that there are many other new statistics views and metrics that
    will be added separately