PostgreSQL full changelog

New memory management system for VACUUM, which reduces memory consumption and can improve overall vacuuming performance.
New SQL/JSON capabilities, including constructors, identity functions, and the JSON_TABLE() function, which converts JSON data into a table representation.
Various query performance improvements, including for sequential reads using streaming I/O, write throughput under high concurrency, and searches over multiple values in a btree index.
New client-side connection option, sslnegotiation=direct, that performs a direct TLS handshake to avoid a round-trip negotiation.
pg_basebackup now supports incremental backup.
COPY adds a new option, ON_ERROR ignore, that allows a copy operation to continue in the event of an error.
Logical replication enhancements, including:
Failover control
pg_createsubscriber, a utility that creates logical replicas from physical standbys
pg_upgrade now preserves replication slots on both publishers and subscribers

Avoid incorrect results from "Merge Right Anti Join" plans, where if the inner relation is known to have unique join keys, the merge could misbehave when there are duplicated join keys in the outer relation.
Prevent infinite loop in VACUUM.
Fix partition pruning setup during ALTER TABLE DETACH ... PARTITION CONCURRENTLY.
Fix behavior of stable functions that are used as an argument to a CALL statement.
pg_sequence_last_value() now returns NULL instead of throwing an error when called on unlogged sequences on standby servers and on temporary sequences of other sessions.
Fix parsing of ignored operators in websearch_to_tsquery().
Correctly check updatability of view columns targeted by INSERT ... DEFAULT.
Lock owned sequences during ALTER TABLE ... SET LOGGED|UNLOGGED.
Don't throw an error if a queued AFTER trigger no longer exists.
Fix selection of an arbiter index for INSERT ... ON CONFLICT when the desired index has expressions or predicates, for example, through an updatable view.
Refuse to modify a temporary table of another session with ALTER TABLE.
Fix handling of extended statistics on expressions in CREATE TABLE ... LIKE STATISTICS.
Fix failure to recalculate sub-queries generated from MIN() or MAX() aggregates.
Disallow underscores in positional parameters.
Avoid crashing when a JIT-inlined backend function throws an error.
Fix handling of subtransactions of prepared transactions when starting a hot standby server.
Prevent incorrect initialization of logical replication slots.
Fix memory leak in the logical replication WAL sender when publishing changes to a partitioned table whose partitions have row types that are physically different from the table.
Disable creation of stateful TLS session tickets by OpenSSL.
Fix how PL/pgSQL handles integer ranges containing underscores (e.g., FOR i IN 1_001..1_002).
Fix incompatibility between PL/Perl and Perl 5.40.
Several fixes related to recursive PL/Python functions and triggers.
Ensure that pg_restore -l