v5.4.0-beta.0

See full changelog here.

Commits:

• install.sh: fixes (#765)
• install: some more fixes (#770)
• install: simplify systemd service and add new helper stopscript (#771)
• Revert "db error busy treatments (#796)" (#808)
• Merge branch 'stable'
• Merge commit 'fdbfe0e8d159f394f6eb0f5168620da8694033cd' into stable
• Merge branch 'stable'
• agent: track slow SQL queries (#822)
• agent: add indexes to improve slow queries performance (#823)
• agent: track count and average time for slow queries (#824)
• client: batch while sending commands - wait for responses before sending the next batch (#825)
• client: streaming batched commands, refactor (#826)
• agent: fix async JOIN (#827)
• agent: wait for db (Revert Revert db error busy treatments (#796) (#808)) (#828)
• agent: fix async join to avoid sending HELLO again after restart (#829)
• docs: comment in the protocol doc
• Pin GHC version in cabal.project (#815)
• changelog
• agent: wait while agent is in foreground to continue xftp operation (#831)
• agent: rename functions, remove unused code, stabilize tests (#830)
• 5.4.0.0: use ghc 9.6.2 (#791)