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Postgres REL_18_6

Postgres: REL_18_6 Release

Release date:

August 11, 2026

Previous version:

REL_18_4 (released May 11, 2026)

Magnitude:

3,213 Diff Delta

Contributors:

12 total committers

Data confidence:

Commits:

100

100 Commits in this Release

Ordered by the degree to which they evolved the repo in this version.

Clean up quoting of variable strings within replication commands

Authored June 15, 2026

Use palloc_array() in pltcl and plperl to avoid overflow

Authored August 10, 2026

btree_gist: fix NaN handling in float4/float8 opclasses

Authored July 1, 2026

Prevent walsummarizer from getting stuck at a timeline switch

Authored July 31, 2026

Modernize pg_bsd_indent's error/warning reporting code

Authored June 15, 2026

Fix calculating length of match to localized month/weekday names

Authored August 5, 2026

unicode_case.c: defend against truncated UTF8

Authored July 7, 2026

pg_stat_statements: Fix buffer overflow with query normalization

Authored August 10, 2026

Avoid orphaned objects dependencies

Authored May 27, 2026

Strip removed-relation references from PlaceHolderVars at join removal

Authored June 22, 2026

pg_unicode_fast: fix final sigma logic

Authored July 7, 2026

Fix int32 overflow in ltree_compare()

Authored June 16, 2026

plpython: Fix NULL pointer dereferences for broken sequence and mapping objects

Authored June 29, 2026

Fix race conditions in ProcKill()'s lock-group freelist handling

Authored May 27, 2026

libpq: Extend "read pending" check from SSL to GSS

Authored July 7, 2026

Fix pg_strupper/lower/title/fold() functions to work with C locale

Authored August 11, 2026

Strip removed-relation references from PHVs in join clauses

Authored July 15, 2026

libpq: Drain all pending bytes from SSL/GSS during pqReadData()

Authored July 7, 2026

Fix edge case in remove_useless_result_rtes() with outer joins

Authored July 18, 2026

Improve reporting of invalid weight symbols in setweight() et al

Authored June 4, 2026

Fix planner's nullability/strictness logic for ScalarArrayOpExpr

Authored July 28, 2026

Make pg_mkdir_p() tolerant of a concurrent directory creation

Authored June 19, 2026

Remove unused arg and dead code in set_attnotnull()

Authored August 3, 2026

Re-introduce pgstat_drop_entry(), keeping ABI compatibility

Authored June 22, 2026

Fix EXPLAIN failure when deparsing SQL/JSON aggregates

Authored July 7, 2026

Fix another case of indirectly casting away const

Authored June 4, 2026

Tighten up TS dictionary cache entry creation

Authored August 2, 2026

Fix LIKE/regex optimization for indexscan with exact-match pattern

Authored July 6, 2026

xml2: Fix crash with namespace nodes in xpath_nodeset()

Authored June 11, 2026

Disallow renaming a rule to "_RETURN"

Authored July 4, 2026

Stamp 18.5

Authored August 10, 2026

Stamp 18.6

Authored August 11, 2026

Update .abi-compliance-history for security fixes

Authored August 10, 2026

Fix mishandling of leading '\' in nondeterministic LIKE

Authored July 6, 2026

dict_synonym.c: remove incorrect outlen

Authored June 8, 2026

Fix tracing of BackendKeyData and CancelRequest

Authored July 3, 2026

Prevent satisfies_hash_partition from crashing with VARIADIC NULL

Authored July 6, 2026

Fix unsafe order of operations in ResourceOwnerReleaseAll()

Authored June 22, 2026

Initialize bs_reltuples in parallel GIN builds

Authored July 30, 2026

Fix multirange type handling in pg_restore_attribute_stats()

Authored August 10, 2026

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Top Contributors in REL_18_6

tglsfdc

hlinnaka

alvherre

richard-guo-5f72

jeff-davis

robertmhaas

michaelpq

tvondra

akorotkov

petere

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